VegeWorx Plant Index - Letter K
- Kaala Melicope - Melicope Kaalaensis (H. St. John) T.G. Hartley & B.C. Stone
- Kaala Phyllostegia - Phyllostegia Kaalaensis H. St. John
- Kaala Rockwort - Nototrichium Humile Hillebr.
- Kaala Stenogyne - Stenogyne Kaalae Wawra
- Kaala Stenogyne - Stenogyne Kaalae Wawra ssp. kaalae
- Kaala Stenogyne - Stenogyne Kaalae Wawra ssp. sherffii (O. Deg.) W.L. Wagner & S.G. Weller
- Kaanapali Stenogyne - Stenogyne Viridis Hillebr.
- Kabocha - Cucurbita Moschata Duchesne var. toonas (Makino) Makino
- Kachina Fleabane - Erigeron Kachinensis S.L. Welsh & Glen Moore
- Kadam - Neolamarckia Cadamba (Roxb.) F. Bosser
- Kadjatoa - Eugeissona Utilis Becc.
- Kadua Affinis DC.
- Kadua Axillaris (Wawra) W.L. Wagner & Lorence
- Kadua Centranthoides Hook. & Arn.
- Kadua Cordata Cham. & Schltdl.
- Kadua Elatior (H. Mann) A. Heller
- Kadua Foggiana (Fosberg) W.L. Wagner & Lorence
- Kadua Formosa Hillebr.
- Kadua Fosbergii (W.L. Wagner & D.R. Herbst) W.L. Wagner & Lorence
- Kadua Grandis A. Gray
- Kadua Littoralis Hillebr.
- Kadua Parvula A. Gray
- Kadua Tryblium (D.R. Herbst & W.L. Wagner) W.L. Wagner & Lorence
- Kaempfer's Glorybower - Clerodendrum Kaempferi (Jacq.) Siebold
- Kaempferia - Kaempferia L.
- Kaempferia - Kaempferia Rotunda L.
- Kaempferia Pandurata Roxb.
- Kaempferia Rotundata L., database artifact
- Kaernefeltia A. Thell & Goward
- Kaernefeltia Californica (Tuck.) A. Thell & Goward
- Kaernefeltia Merrillii (Du Rietz) A. Thell & Goward
- Kaffir Lily - Schizostylis Backh. & Harv.
- Kaffir Potato - Plectranthus Esculentus N.E. Br.
- Kaffir-lily - Clivia Lindl.
- Kaffir-lily - Clivia Minata (Lindl.) Regel
- Kaffir-lily - Schizostylis Coccinea Backh. & Harv.
- Kahana Valley Cyrtandra - Cyrtandra Crenata H. St. John & Storey
- Kahika - Dacrycarpus Dacrydioides (A. Rich.) de Laub.
- Kahila Garland-lily - Hedychium Gardnerianum Shepard ex Ker Gawl.
- Kahili Beggarticks - Bidens Forbesii Sherff ssp. kahiliensis Ganders & Nagata
- Kahili Phyllostegia - Phyllostegia Kahiliensis H. St. John
- Kahili Ridge Yellow Loosestrife - Lysimachia Kahiliensis H. St. John
- Kahiliflower - Grevillea Banksii R. Br.
- Kaholuamanu Melicope - Melicope Macropus (Hillebr.) T.G. Hartley & B.C. Stone
- Kaholuamanu Schiedea - Schiedea Helleri Sherff
- Kahuaha Forest Peperomia - Peperomia Rockii C. DC.
- Kahuku Pritchardia - Pritchardia Kahukuensis Caum
- Kaibab Agave - Agave Utahensis Engelm. var. kaibabensis (McKelvey) Breitung
- Kaibab Bird's Beak - Cordylanthus Wrightii A. Gray ssp. kaibabensis T.I. Chuang & Heckard
- Kaibab Bladderpod - Lesquerella Kaibabensis Rollins
- Kaibab Draba - Draba Asprella Greene var. kaibabensis C.L. Hitchc.
- Kaibab Pincushion Cactus - Pediocactus Paradinei B.W. Benson
- Kaibab Plateau Beardtongue - Penstemon Pseudoputus (Crosswh.) N.H. Holmgren
- Kaibab Plateau Indian Paintbrush - Castilleja Kaibabensis N.H. Holmgren
- Kaibab Pussytoes - Antennaria Rosulata Rydb.
- Kaibab Sedge - Carex Curatorum Stacey
- Kaibab Spinystar - Escobaria Vivipara (Nutt.) Buxbaum var. kaibabensis (P.C. Fisch.) N.P. Taylor
- Kaibab Suncup - Camissonia Specuicola (P.H. Raven) P.H. Raven
- Kaibab Suncup - Camissonia Specuicola (P.H. Raven) P.H. Raven ssp. hesperia (P.H. Raven) P.H. Raven
- Kaibab Suncup - Camissonia Specuicola (P.H. Raven) P.H. Raven ssp. specuicola
- Kaido Crab Apple - Malus ×micromalus Makino [excluded]
- Kaiholena Cyanea - Cyanea Stictophylla Rock
- Kaiparowits Beardtongue - Penstemon Atwoodii S.L. Welsh
- Kaiparowits Milkvetch - Astragalus Malacoides Barneby
- Kairn's Sensitive-briar - Mimosa Latidens (Small) B.L. Turner
- Kakonakona - Panicum Xerophilum (Hillebr.) Hitchc.
- Kalalau Rim Dubautia - Dubautia Kenwoodii G.D. Carr
- Kalalau Schiedea - Schiedea Attenuata W.L. Wagner, S.G. Weller & A.K. Sakai
- Kalalau Valley Remya - Remya Montgomeryi W.L. Wagner & D.R. Herbst
- Kalalau Valley Starviolet - Hedyotis Tryblium D.R. Herbst & W.L. Wagner
- Kalalau Valley Stenogyne - Stenogyne Campanulata Weller & Sakai
- Kalamalo - Eragrostis Monticola (Gaudich.) Hillebr.
- Kalamazoo Dewberry - Rubus Uvidus L.H. Bailey
- Kalanchoe Brasiliensis Camb.
- Kalanchoe Crenata (Andrews) Haw.
- Kalanchoe Grandiflora A. Rich., non Wall. ex Wight & Arn.
- Kalanchoe Laxiflora Baker [excluded]
- Kalanchoe Marmorata Baker [excluded]
- Kalanchoe Tubiflora (Harv.) Raym.-Hamet
- Kalanchoe Verticillata Elliott
- Kalealaha Beggarticks - Bidens Micrantha Gaudich. ssp. kalealaha Nagata & Ganders
- Kalia - Elaeocarpus Bifidus Hook. & Arn.
- Kalimeris Mongolica (Franch.) Kitam.
- Kalinia Grass - Kalinia H.l. Bell & Columbus
- Kalinia Grass - Kalinia Obtusiflora (E. Fourn.) H.L. Bell & Columbus
- Kallstroemia Brachystylis Vail
- Kallstroemia Californica (S. Watson) Vail var. brachystylis (Vail) Kearney & Peebles
- Kallstroemia Caribaea Rydb.
- Kallstroemia Intermedia Rydb.
- Kalm's Hawkweed - Hieracium Kalmii L.
- Kalm's Hawkweed - Hieracium Kalmii L. var. kalmii
- Kalm's Hawkweed - Hieracium Kalmii L. var. subintegrum (Lepage) Lepage
- Kalm's St. Johnswort - Hypericum Kalmianum L.
- Kalmia Angustifolia L. var. carolina (Small) Fernald
- Kalmia Buxifolia (Bergius) Gift & Kron
- Kalmia Latifolia L. var. laevipes Fernald
- Kalmia Microphylla (Hook.) A. Heller ssp. occidentalis (Small) Roy L. Taylor & MacB
- Kalmia Microphylla (Hook.) A. Heller var. occidentalis (Small) Ebinger
- Kalmia Occidentalis Small
- Kalmia Polifolia Wangenh. ssp. microphylla (Hook.) Calder & Roy L. Taylor
- Kalmia Polifolia Wangenh. ssp. occidentalis (Small) Abrams
- Kalmia Polifolia Wangenh. ssp. polifolia
- Kalmia Polifolia Wangenh. var. microphylla (Hook.) Rehder
- Kalmia Polifolia Wangenh. var. rosmarinifolia (Pursh) Rehder
- Kalmia Procumbens (L.) Gift, Kron & P.F. Stevens ex Galasso, Banfi & F. Conti
- Kalmiella Hirsuta (Walter) Small
- Kalmiopsis - Kalmiopsis Rehder
- Kalopanax Pictus (Thunb.) Nakai
- Kaluaaha Valley Peperomia - Peperomia Degeneri Yunck.
- Kamakahala Lau Li'i - Labordia Waialealae Wawra
- Kamala Tree - Mallotus Philippensis (Lam.) Müll. Arg.
- Kamalo Gulch Catchfly - Silene Alexandri Hillebr.
- Kamalo Gulch Schiedea - Schiedea Lydgatei Hillebr.
- Kamalo Pritchardia - Pritchardia Munroi Rock
- Kamanomano - Cenchrus Agrimonioides Trin.
- Kamanomano - Cenchrus Agrimonioides Trin. var. agrimonioides
- Kamanomano - Cenchrus Agrimonioides Trin. var. laysanensis F. Br.
- Kamapua'a - Hedyotis Fluviatilis (Forbes) Fosberg
- Kamchatka Aconite - Aconitum Maximum Pall. ex DC.
- Kamchatka Buttercup - Ranunculus Kamchaticus DC.
- Kamchatka Cetraria Lichen - Cetraria Kamczatica Savicz
- Kamchatka Fritillary - Fritillaria Camschatcensis (L.) Ker Gawl.
- Kamchatka Globeflower - Trollius Riederianus Fisch. & C.A. Mey.
- Kamchatka Rhododendron - Rhododendron Camtschaticum Pall.
- Kamchatka Rhododendron - Rhododendron Camtschaticum Pall. ssp. camtschaticum
- Kamchatka Rhododendron - Rhododendron Camtschaticum Pall. ssp. glandulosum (Standl.) Hultén
- Kamchatka Rockcress - Arabis Kamchatica (Fisch. ex DC.) Ledeb.
- Kamchatka Spikerush - Eleocharis Kamtschatica (C.A. Mey.) Kom.
- Kamchatka Thistle - Cirsium Kamtschaticum Ledeb. ex DC.
- Kamchatka Xanthoparmelia Lichen - Xanthoparmelia Camtschadalis (Ach.) Hale
- Kameduangel - Cerbera Floribunda K. Schum.
- Kamo'oloa Cyrtandra - Cyrtandra Kamooloaensis H. St. John
- Kamraj - Helminthostachys Zeylanica (L.) Hook.
- Kamtschatca Mountain-avens - Dryas Octopetala L. ssp. octopetala var. kamtschatica (Juz.) Hultén
- Kanab Yucca - Yucca Angustissima Engelm. ex Trel. var. kanabensis (McKelvey) Reveal
- Kanaloa - Kanaloa D.h. Lorence & K.R. Wood
- Kanaloa - Kanaloa Kahoolawensis D.H. Lorence & K.R. Wood
- Kanawao - Broussaisia Arguta Gaudich.
- Kanawao Ke'oke'o - Cyrtandra Paludosa Gaudich.
- Kanawao Ke'oke'o - Cyrtandra Paludosa Gaudich. var. microcarpa Wawra
- Kanawao Ke'oke'o - Cyrtandra Paludosa Gaudich. var. paludosa
- Kane County Twinpod - Physaria Lepidota Rollins
- Kane County Twinpod - Physaria Lepidota Rollins var. lepidota
- Kane County Twinpod - Physaria Lepidota Rollins var. membranacea (Rollins) Rollins
- Kanehira's Glochidion - Glochidion Kanehirae Hosok.
- Kanehira's Phreatia - Phreatia Kanehirae Fukuy.
- Kanehira's Serianthes - Serianthes Kanehirae Fosberg
- Kanewsk's Cup Lichen - Cladonia Kanewskii Oksner
- Kangaroo Grass - Themeda Forssk.
- Kangaroo Grass - Themeda Quadrivalvis (L.) Kuntze
- Kangaroo Grass - Themeda Quadrivalvis (L.) Kuntze var. helferi (Munro ex Hack.) Bor
- Kangaroo Grass - Themeda Quadrivalvis (L.) Kuntze var. quadrivalvis
- Kangaroo Grass - Themeda Triandra Forssk.
- Kangaroo Vine - Cissus Antarctica Venten.
- Kansas Arrowhead - Sagittaria Ambigua J.G. Sm.
- Kansas Aschisma Moss - Aschisma Kansanum A.L. Andrews
- Kansas Fissidens Moss - Fissidens Obtusifolius Wilson var. kansanus Renauld & Cardot
- Kansas Hawthorn - Crataegus Coccinioides Ashe
- Kansas Peccania Lichen - Peccania Kansana (Tuck.) Forss.
- Kapana - Phyllostegia Grandiflora (Gaudich.) Benth.
- Kapoktree - Ceiba Pentandra (L.) Gaertn.
- Kappler's Bristle Fern - Trichomanes Kapplerianum Sturm
- Kapu Melicope - Melicope Radiata (H. St. John) T.G. Hartley & B.C. Stone
- Karaka Nut - Corynocarpus Laevigatus J.R. Forst. & G. Forst.
- Karamyschev's Wheat - Triticum Karamyschevii Nevski
- Karanda - Carissa Carandas L. [excluded]
- Karatas Plumieri E. Morren
- Kariba-weed - Salvinia Molesta Mitchell
- Karri - Eucalyptus Diversicolor F. Muell.
- Karroochloa Curva (Nees) Conert & Turpe
- Karroothorn - Vachellia Karroo (Hayne) Banfi & Galasso
- Karschia Athallina (Müll. Arg.) Vouaux
- Karschia Inops Triebel & Rambold
- Karschia Körb.
- Karuspeagatt - Crudia Cynometroides Hosok.
- Karwinskia - Karwinskia Zucc.
- Kashmir Cypress - Cupressus Cashmeriana Carrière
- Kass' Draba - Draba Kassii S.L. Welsh
- Kates Mountain Clover - Trifolium Virginicum Small ex Small & Vail
- Katherine-wheel - Scadoxus Multiflorus (Martyn) Raf. ssp. katherinae (Baker) Friis & Nordal
- Kathul Mountain Draba - Draba Murrayi G. Mulligan
- Katsura Tree - Cercidiphyllum Japonicum Siebold & Zucc.
- Katsura Tree - Cercidiphyllum Siebold & Zucc.
- Kau Silversword - Argyroxiphium Kauense (Rock & Neal) O. Deg. & I. Deg.
- Kauai Beggarticks - Bidens Cervicata Sherff
- Kauai Blacksnakeroot - Sanicula Kauaiensis H. St. John
- Kauai Bloodgrass - Isachne Pallens Hillebr.
- Kauai Bluegrass - Poa Siphonoglossa Hack.
- Kauai Bottlebrush - Metrosideros Waialealae (Rock) Rock
- Kauai Bottlebrush - Metrosideros Waialealae (Rock) Rock var. fauriei (Levl.) J.W. Dawson & Stemmermann
- Kauai Bottlebrush - Metrosideros Waialealae (Rock) Rock var. waialealae
- Kauai Bur Cucumber - Sicyos Lanceoloideus (H. St. John) W.L. Wagner & D.R. Herbst
- Kauai Catchbirdtree - Pisonia Wagneriana Fosberg
- Kauai Catchfly - Silene Lanceolata A. Gray
- Kauai Cheesewood - Pittosporum Kauaiense Hillebr.
- Kauai Clermontia - Clermontia Clermontioides (Gaudich.) A. Heller
- Kauai Clermontia - Clermontia Clermontioides (Gaudich.) A. Heller ssp. clermontioides
- Kauai Clermontia - Clermontia Clermontioides (Gaudich.) A. Heller ssp. rockiana (E. Wimm.) Lammers
- Kauai Clubmoss - Huperzia Subintegra (Hillebr.) Beitel & W.H. Wagner
- Kauai Colicwood - Myrsine Kauaiensis Hillebr.
- Kauai Cyanea - Cyanea Fissa (H. Mann) Hillebr.
- Kauai Cyanea - Cyanea Fissa (H. Mann) Hillebr. ssp. fissa
- Kauai Cyanea - Cyanea Fissa (H. Mann) Hillebr. ssp. gayana (Rock) Lammers
- Kauai Cyrtandra - Cyrtandra Olona Forbes
- Kauai Delissea - Delissea Rhytidosperma H. Mann
- Kauai Digit Fern - Doryopteris Angelica K. Wood & W.H. Wagner
- Kauai Dubautia - Dubautia Microcephala Skottsb.
- Kauai False Lobelia - Trematolobelia Kauaiensis (Rock) Skottsb.
- Kauai False Ohelo - Wikstroemia Uva-ursi A. Gray var. kauaiensis Skottsb.
- Kauai Fern - Vandenboschia Tubiflora F.S. Wagner
- Kauai Flatsedge - Cyperus Rockii Kük.
- Kauai Geranium - Geranium Kauaiense (Rock) H. St. John
- Kauai Hau Kuahiwi - Hibiscadelphus Distans Bishop & D.R. Herbst
- Kauai Island-aster - Hesperomannia Lydgatei Forbes
- Kauai Jackbean - Canavalia Kauaiensis Sauer
- Kauai Kihifern - Adenophorus Epigaeus (Bishop) W.H. Wagner
- Kauai Korthal Mistletoe - Korthalsella Latissima (v. Tiegh.) Danser
- Kauai Labordia - Labordia Pumila (Hillebr.) Skottsb.
- Kauai Ma'oloa - Neraudia Kauaiensis (Hillebr.) Cowan
- Kauai Melicope - Melicope Kavaiensis (H. Mann) T.G. Hartley & B.C. Stone
- Kauai Nehe - Lipochaeta Micrantha (Nutt.) A. Gray
- Kauai Nehe - Lipochaeta Micrantha (Nutt.) A. Gray var. exigua (O. Deg. & Sherff) R.C. Gardner
- Kauai Nehe - Lipochaeta Micrantha (Nutt.) A. Gray var. micrantha
- Kauai Pa'iniu - Astelia Waialealae Wawra
- Kauai Panicgrass - Panicum Lineale H. St. John
- Kauai Phyllostegia - Phyllostegia Waimeae Wawra
- Kauai Pipturus - Pipturus Kauaiensis A. Heller
- Kauai Pricklyash - Zanthoxylum Kauaense A. Gray
- Kauai Pteralyxia - Pteralyxia Kauaiensis Caum
- Kauai Remya - Remya Kauaiensis Hillebr.
- Kauai Sandmat - Chamaesyce Halemanui (Sherff) Croizat & O. Deg.
- Kauai Sawsedge - Gahnia Vitiensis Rendle ssp. kauaiensis (Benl) T. Koyama
- Kauai Schiedea - Schiedea Apokremnos H. St. John
- Kauai Schiedea - Schiedea Kauaiensis H. St. John
- Kauai Sedge - Carex Kauaiensis R.W. Krauss
- Kauai Spurge - Euphorbia Haeleeleana D.R. Herbst
- Kauai Starviolet - Hedyotis Foggiana Fosberg
- Kauai Tetramolopium - Tetramolopium Consanguineum (A. Gray) Hillebr. ssp. leptophyllum (Sherff) Lowrey var. kauens
- Kauai Treecotton - Kokia Kauaiensis (Rock) O. Deg. & Duvel
- Kauai Wild Coffee - Psychotria Greenwelliae Fosberg
- Kauai Wormwood - Artemisia Kauaiensis (Skottsb.) Skottsb.
- Kauai Yellow Loosestrife - Lysimachia Kalalauensis Skottsb.
- Kauai Yellowwood - Ochrosia Kauaiensis H. St. John
- Kauaikinana Woodfern - Dryopteris Podosora W.H. Wagner & T. Flynn
- Kauila - Colubrina Oppositifolia Brongn. ex Mann
- Kaulfuss' Lipfern - Gaga Kaulfussii (Kunze) F.W. Li & Windham
- Kaulfuss' Spleenwort - Asplenium Kaulfussii Schltdl.
- Kaumahana - Korthalsella Complanata (v. Tiegh.) Engl.
- Kauna'oa - Cuscuta Sandwichiana Choisy
- Kauri - Agathis Australis (D. Don) Steud.
- Kava - Piper Methysticum G. Forst.
- Kawa'u - Zanthoxylum Dipetalum H. Mann
- Kawa'u - Zanthoxylum Dipetalum H. Mann var. dipetalum
- Kawa'u - Zanthoxylum Dipetalum H. Mann var. tomentosum Rock
- Kaweah Brodiaea - Brodiaea Insignis (Jeps.) Niehaus
- Kaweah Lakes Fawnlily - Erythronium Pusaterii (Munz & J.T. Howell) Shevock, Bartel & Allen
- Kaweah Monkeyflower - Mimulus Norrisii Heckard & Shevock
- Kaweah River Bush Monkeyflower - Diplacus Calycinus Eastw.
- Kaweah River Phacelia - Phacelia Egena (Greene ex Brand) Greene ex J.T. Howell
- Kawelu - Eragrostis Variabilis (Gaudich.) Steud.
- Kawich Range Beardtongue - Penstemon Pudicus Reveal & Beatley
- Kay's Grama - Bouteloua Kayi Warnock
- Kayea - Kayea Wall.
- Keaau Valley Dubautia - Dubautia Herbstobatae G.D. Carr
- Keahi - Nesoluma Polynesicum (Hillebr.) Baill.
- Keal's Stenogyne - Stenogyne Kealiae Wawra
- Kealia Cyanea - Cyanea Recta (Wawra) Hillebr.
- Kealia Gulch Bur Cucumber - Sicyos Erostratus H. St. John
- Kearney's Bluestar - Amsonia Kearneyana Woodson
- Kearney's Snakewood - Condalia Warnockii M.C. Johnst. var. kearneyana M.C. Johnst.
- Kearney's Sumac - Rhus Kearneyi F.A. Barkley
- Keck's Beardtongue - Penstemon Leiophyllus Pennell var. keckii (Clokey) N.H. Holmgren
- Keck's Bluegrass - Poa Keckii Soreng
- Keck's Checkerbloom - Sidalcea Keckii Wiggins
- Keck's Phacelia - Phacelia Suaveolens Greene ssp. keckii (Munz & I.M. Johnst.) Thorne
- Keckiella Antirrhinoides (Benth.) Straw var. antirrhinoides
- Keckiella Antirrhinoides (Benth.) Straw var. microphylla (A. Gray) N.H. Holmgren
- Keckiella Breviflora (Lindl.) Straw var. breviflora
- Keckiella Breviflora (Lindl.) Straw var. glabrisepala (D.D. Keck) N.H. Holmgren
- Keckiella - Keckiella Straw
- Keckiella Rothrockii (A. Gray) Straw var. jacintensis (Abrams) N.H. Holmgren
- Keckiella Rothrockii (A. Gray) Straw var. rothrockii
- Keckiella Ternata (Torr. ex A. Gray) Straw var. septentrionalis (Munz & I.M. Johns
- Keckiella Ternata (Torr. ex A. Gray) Straw var. ternata
- Keeled Bulrush - Isolepis Carinata Hook. & Arn. ex Torr.
- Keeled Wormseed - Dysphania Carinata (R. Br.) Mosyakin & Clemants
- Keerlia Bellidifolia A. Gray & Engelm.
- Keerlia Effusa A. Gray
- Keerlia Skirrhobasis DC.
- Keever's Orthotrichum Moss - Orthotrichum Keeverae H.A. Crum & L.E. Anderson
- Kei Apple - Dovyalis Caffra (Hook. f. & Harv.) Warb.
- Keikei - Salacia Forsteniana Miq.
- Keil's Erigeron - Erigeron Inornatus (A. Gray) A. Gray var. keilii G.L. Nesom
- Kelelamengerenger - Capparis Zippeliana Miq.
- Kelley's Lily - Lilium Kelleyanum Lemmon
- Kellogg Snapdragon - Neogaerrhinum Strictum (Hook. & Arn.) Rothm.
- Kellogg's Blackberry - Rubus Kelloggii L.H. Bailey
- Kellogg's Bluegrass - Poa Kelloggii Vasey
- Kellogg's Dwarf Rush - Juncus Kelloggii Engelm.
- Kellogg's Hawthorn - Crataegus Kelloggii Sarg.
- Kellogg's Klamath Plum - Prunus Subcordata Benth. var. kelloggii Lemmon
- Kellogg's Knotweed - Polygonum Polygaloides Wall. ex Meisn. ssp. kelloggii (Greene) J.C. Hickman
- Kellogg's Lewisia - Lewisia Kelloggii K. Brandegee
- Kellogg's Lewisia - Lewisia Kelloggii K. Brandegee ssp. hutchisonii Dempster
- Kellogg's Lewisia - Lewisia Kelloggii K. Brandegee ssp. kelloggii
- Kellogg's Lily - Lilium Kelloggii Purdy
- Kellogg's Monkeyflower - Mimulus Kelloggii (Curran ex Greene) Curran ex A. Gray
- Kellogg's Sedge - Carex Lenticularis Michx. var. lipocarpa (T. Holm) L.A. Standl.
- Kellogg's Spurred Lupine - Lupinus Caudatus Kellogg ssp. argophyllus (A. Gray) L. Phillips
- Kellogg's Spurred Lupine - Lupinus Caudatus Kellogg ssp. montigenus (A. Heller) Hess & D. Dunn
- Kellogg's Tarweed - Hemizonia Kelloggii Greene
- Kellogg's Umbrellawort - Tauschia Kelloggii (A. Gray) J.F. Macbr.
- Kellogg's Yampah - Perideridia Kelloggii (A. Gray) Mathias
- Kelloggia - Kelloggia Torr. ex Benth.
- Kelsey's Cryptantha - Cryptantha Kelseyana Greene
- Kelsey's Locust - Robinia Hispida L. var. kelseyi (J.F. Cowell ex Hutch.) Isely
- Kelsey's Phlox - Phlox Kelseyi Britton
- Kelsey's Phlox - Phlox Kelseyi Britton ssp. kelseyi
- Kelseya - Kelseya (s. Watson) Rydb.
- Kelso Creek Monkeyflower - Mimulus Shevockii Heckard & Bacig.
- Kelvin Pricklypear - Cylindropuntia ×kelvinensis (V.E. Grant & K.A. Grant) P.V. Heath
- Kenai Birch - Betula Papyrifera Marshall var. kenaica (W.H. Evans) A. Henry
- Kenilworth Ivy - Cymbalaria Muralis G. Gaertn., B. Mey. & Scherb.
- Kenmore's Porocyphus Lichen - Porocyphus Kenmorensis (Holl ex Nyl.) Henssen
- Kennebunkport Dewberry - Rubus Harmonicus L.H. Bailey
- Kennedia Rubicunda (Schneev.) Vent.
- Kennedia Vent.
- Kennedy's Blackberry - Rubus Kennedyanus Fernald
- Kennedy's Buckwheat - Eriogonum Kennedyi Porter ex S. Watson
- Kennedy's Buckwheat - Eriogonum Kennedyi Porter ex S. Watson var. kennedyi
- Kennedy's Milkvetch - Astragalus Lentiginosus Douglas ex Hook. var. kennedyi (Rydb.) Barneby
- Kennedy's Tropical Bent - Bromidium Tandilense (Kuntze) Rúgolo
- Kentranthus Ruber (L.) DC., orth. var.
- Kentrophyta Montana Nutt.
- Kentucky Bluegrass - Poa Pratensis L.
- Kentucky Bluegrass - Poa Pratensis L. ssp. alpigena (Fr. ex Blytt) Hiitonen
- Kentucky Bluegrass - Poa Pratensis L. ssp. colpodea (Th. Fr.) Tzvelev
- Kentucky Bluegrass - Poa Pratensis L. ssp. pratensis
- Kentucky Coffeetree - Gymnocladus Dioicus (L.) K. Koch
- Kentucky Lady's Slipper - Cypripedium Kentuckiense C.F. Reed
- Kentucky Rinodina Lichen - Rinodina Kentuckyensis Fink
- Kentucky Yellowwood - Cladrastis Kentukea (Dum. Cours.) Rudd
- Kenwood Marsh Checkerbloom - Sidalcea Oregana (Nutt. ex Torr. & A. Gray) A. Gray ssp. valida (Greene) C.L. Hit
- Kenya Bur Grass - Tragus Heptaneuron W.D. Clayton
- Kenya Clover - Trifolium Semipilosum Fresen.
- Kenyan Shower - Cassia Afrofistula Brenan
- Kern Brodiaea - Brodiaea Terrestris Kellogg ssp. kernensis (Hoover) Niehaus
- Kern Buckwheat - Eriogonum Kennedyi Porter ex S. Watson var. pinicola Reveal
- Kern Canyon Clarkia - Clarkia Xantiana A. Gray ssp. parviflora (Eastw.) H.F. Lewis & P.H. Raven
- Kern Canyon False Goldenaster - Heterotheca Shevockii (Semple) Semple
- Kern Cinquefoil - Potentilla Wheeleri S. Watson
- Kern County Evening Primrose - Camissonia Kernensis (Munz) P.H. Raven
- Kern County Evening Primrose - Camissonia Kernensis (Munz) P.H. Raven ssp. kernensis
- Kern County Larkspur - Delphinium Purpusii Brandegee
- Kern County Milkvetch - Astragalus Subvestitus (Jeps.) Barneby
- Kern Frasera - Frasera Tubulosa Coville
- Kern Larkspur - Delphinium Hansenii (Greene) Greene ssp. kernense (Davidson) Ewan
- Kern Mallow - Eremalche Parryi (Greene) Greene ssp. kernensis (C.B. Wolf) D.M. Bates
- Kern Milkvetch - Astragalus Lentiginosus Douglas ex Hook. var. kernensis (Jeps.) Barneby
- Kern Plateau Bird's-beak - Cordylanthus Eremicus (Coville & Morton) Munz ssp. kernensis T.I. Chuang & Heckard
- Kern Plateau Horkelia - Horkelia Tularensis (J.T. Howell) Munz
- Kern River Clarkia - Clarkia Exilis F.H. Lewis & Vasek
- Kern River Evening Primrose - Camissonia Integrifolia P.H. Raven
- Kern River Fleabane - Erigeron Multiceps Greene
- Kern Tarweed - Deinandra Pallida (D.D. Keck) B.G. Baldw.
- Kern's Pitted Onion - Allium Lacunosum S. Watson var. kernense McNeal & Ownbey
- Kerner's Dock - Rumex Kerneri Borbás
- Kerr's Milkvetch - Astragalus Kerrii Knight & Cully
- Kerria - Kerria Dc.
- Kerry's Indian Paintbrush - Castilleja Kerryana J.M. Egger
- Kersting's Crepidium - Crepidium Kerstingianum (Schltr.) Szlach.
- Kersting's Dendrobium - Dendrobium Kerstingianum Schltr.
- Kerstingiella Geocarpa Harms
- Kesebibui - Piper Hosokawae Fosberg
- Kesengelngel - Morinda Latibractea Valeton
- Kesengelngel - Morinda Pedunculata Valeton
- Kesiamel - Osmoxylon Oliveri Fosberg & Sachet
- Kesiamel - Osmoxylon Pachyphyllum (Kaneh.) Fosberg & Sachet
- Kesiamel - Osmoxylon Truncatum (Kaneh.) Fosberg & Sachet
- Keteleeria - Keteleeria Carrière
- Ketenguit - Kayea Pacifica Hosok.
- Ketona Tickseed - Coreopsis Grandiflora Hogg ex Sweet var. inclinata J. Allison
- Kettle Falls Lupine - Lupinus Minimus Douglas ex Hook.
- Keuert - Drypetes Nitida Kaneh.
- Keurboom - Virgilia Oroboides (Bergius) Salter
- Key Lime - Citrus ×aurantiifolia (Christm.) Swingle (pro sp.)
- Key Thatch Palm - Leucothrinax Morrisii (H. Wendl.) C.Lewis & Zona
- Key West Heliotrope - Heliotropium Fruticosum L.
- Key West Threeawn - Aristida Floridana (Chapm.) Vasey
- Keyflower - Dactylorhiza Aristata (Fisch. ex Lindl.) Soó
- Keyflower - Dactylorhiza Aristata (Fisch. ex Lindl.) Soó var. aristata
- Keyflower - Dactylorhiza Majalis (Rchb. f.) P.F. Hunt & Summerhayes
- Keyflower - Dactylorhiza Majalis (Rchb. f.) P.F. Hunt & Summerhayes ssp. praetermissa (Druce) D.M
- Keyflower - Dactylorhiza Majalis (Rchb. f.) P.F. Hunt & Summerhayes ssp. praetermissa (Druce) D.M
- Keyflower - Dactylorhiza Majalis (Rchb. f.) P.F. Hunt & Summerhayes ssp. praetermissa (Druce) D.M
- Keyflower - Dactylorhiza Neck. ex Nevski
- Keysseria Lavandula H. St. John
- Keystone Hawthorn - Crataegus Tanuphylla Sarg.
- Khakiweed - Alternanthera Pungens Kunth
- Khat - Catha Edulis (Vahl) Forssk. ex Endl.
- Khaya Nyasica Stapf ex Baker f.
- Kiaeria Blyttii (Schimp.) Broth. var. hispidula (R.S. Williams) Wijk & Margad.
- Kiaeria Falcata (Hedw.) I. Hagen var. pumila (Saut.) Podp.
- Kiaeria Moss - Kiaeria I. Hagen
- Kiaerskov's Lidflower - Calyptranthes Kiaerskovii Krug & Urb. [excluded]
- Kiawe - Prosopis Pallida (Humb. & Bonpl. ex Willd.) Kunth
- Kidney Bean - Phaseolus Vulgaris L.
- Kidney Lichen - Nephroma Ach.
- Kidney Lichen - Nephroma Bellum (Spreng.) Tuck.
- Kidney Lichen - Nephroma Expallidum (Nyl.) Nyl.
- Kidney Lichen - Nephroma Isidiosum (Nyl.) Gyel.
- Kidney Lichen - Nephroma Laevigatum Ach.
- Kidney Lichen - Nephroma Occultum Wetmore
- Kidney Lichen - Nephroma Parile (Ach.) Ach.
- Kidney Lichen - Nephroma Resupinatum (L.) Ach.
- Kidneyleaf Buckwheat - Eriogonum Reniforme Torr. & Frém.
- Kidneyleaf Grass Of Parnassus - Parnassia Asarifolia Vent.
- Kidneyleaf Greenbrier - Smilax Renifolia Small
- Kidneyleaf Mudplantain - Heteranthera Reniformis Ruiz & Pav.
- Kidneyleaf Rosinweed - Silphium Compositum Michx.
- Kidneyleaf Rosinweed - Silphium Compositum Michx. var. compositum
- Kidneyleaf Rosinweed - Silphium Compositum Michx. var. ovatifolium Torr. & A. Gray
- Kidneyleaf Rosinweed - Silphium Compositum Michx. var. reniforme (Raf. ex Nutt.) Torr. & A. Gray
- Kidneyleaf Rosinweed - Silphium Compositum Michx. var. venosum (Small) Kartesz & Gandhi
- Kidneyleaf Twayblade - Listera Smallii Wiegand
- Kidneyshape Buckwheat - Eriogonum Subreniforme S. Watson
- Kidneyshape Dot Lichen - Arthonia Reniformis (Pers.) Ach.
- Kidneyshape Sedge - Carex Reniformis (L.H. Bailey) Small
- Kidneyvetch - Anthyllis L.
- Kidneywood - Eysenhardtia Kunth
- Kigelia Pinnata (Jacq.) DC.
- Kihifern - Adenophorus Gaudich.
- Kihifern - Adenophorus ×abbottiae W.H. Wagner
- Kihifern - Adenophorus ×carsonii T.A. Ranker
- Kihlman's Wreath Lichen - Phaeophyscia Kairamoi (Vain.) Moberg
- Kikuyugrass - Pennisetum Clandestinum Hochst. ex Chiov.
- Kikuyugrass - Pennisetum Incomptum Nees ex Steud.
- Kilau - Trichomanes Davallioides Gaudich.
- Kilauea Hau Kuahiwi - Hibiscadelphus Giffardianus Rock
- Kilauea Mauna Cyanea - Cyanea Giffardii Rock
- Kilauea Pritchardia - Pritchardia Beccariana Rock
- Kilaw - Dryopteris Glabra (Brack.) Kuntze
- Kiliasia Athallina (Hepp) Hafellner
- Kiliasia Philippea (Mont.) Hafellner
- Kilioe - Embelia Pacifica Hillebr.
- Killer Alga - Caulerpa Taxifolia (Vahl) C. Agardh
- Kincaid's Lupine - Lupinus Oreganus A. Heller var. kincaidii C.P. Sm.
- Kindberg's Climacium Moss - Climacium Kindbergii (Renauld & Cardot) Grout
- Kindbergia Brittoniae (Grout) Ochyra
- Kindbergia Oregana (Sull.) Ochyra
- Kindbergia Praelonga (Hedw.) Ochyra
- Kindbergia Praelonga (Hedw.) Ochyra var. californica (Grout) Ochyra
- Kindbergia Praelonga (Hedw.) Ochyra var. stokesii (Turner) Ochyra
- King Bladderpod - Lesquerella Kingii S. Watson
- King Bladderpod - Lesquerella Kingii S. Watson ssp. bernardina (Munz) Munz
- King Bladderpod - Lesquerella Kingii S. Watson ssp. diversifolia (Greene) Rollins & Shaw
- King Bladderpod - Lesquerella Kingii S. Watson ssp. kingii
- King Bladderpod - Lesquerella Kingii S. Watson ssp. kingii var. cobrensis Rollins & Shaw
- King Bladderpod - Lesquerella Kingii S. Watson ssp. kingii var. kingii
- King Bladderpod - Lesquerella Kingii S. Watson ssp. latifolia (A. Nelson) Rollins & Shaw
- King Desertparsley - Lomatium Graveolens (S. Watson) Dorn & R.L. Hartm.
- King Desertparsley - Lomatium Graveolens (S. Watson) Dorn & R.L. Hartm. var. graveolens
- King Of The Meadow - Thalictrum Pubescens Pursh
- King Orchid - Broughtonia Domingensis (Lindl.) Rolfe
- King Protea - Protea Cynaroides (L.) L.
- King's Angelica - Angelica Kingii (S. Watson) J.M. Coult. & Rose
- King's Beardtongue - Penstemon Kingii S. Watson
- King's Bird's-beak - Cordylanthus Kingii S. Watson
- King's Bird's-beak - Cordylanthus Kingii S. Watson ssp. densiflorus T.I. Chuang & Heckard
- King's Bird's-beak - Cordylanthus Kingii S. Watson ssp. kingii
- King's Campion - Silene Kingii (S. Watson) Bocquet
- King's Clover - Trifolium Kingii S. Watson
- King's Clover - Trifolium Kingii S. Watson ssp. kingii
- King's Clover - Trifolium Kingii S. Watson ssp. macilentum (Greene) J.M. Gillett
- King's Compact Sandwort - Arenaria Kingii (S. Watson) M.E. Jones ssp. compacta (Coville) Maguire
- King's Cyclopeltis - Cyclopeltis Kingii (Hance) Hosok.
- King's Dalea - Psorothamnus Kingii (S. Watson) Barneby
- King's Eyelashgrass - Blepharidachne Kingii (S. Watson) Hack.
- King's Flax - Linum Kingii S. Watson
- King's Gold - Twisselmannia Al-shehbaz
- King's Gold - Twisselmannia Californica Al-Shehbaz
- King's Lupine - Lupinus Kingii S. Watson
- King's Lupine - Lupinus Kingii S. Watson var. argillaceus (Wooton & Standl.) C.P. Sm.
- King's Lupine - Lupinus Kingii S. Watson var. kingii
- King's Mousetail - Ivesia Kingii S. Watson
- King's Plateau Sandwort - Arenaria Kingii (S. Watson) M.E. Jones ssp. plateauensis Maguire
- King's Ragwort - Senecio Eremophilus Richardson var. kingii (Rydb.) Greenm.
- King's Rosy Sandwort - Arenaria Kingii (S. Watson) M.E. Jones ssp. rosea Maguire
- King's Sandwort - Arenaria Kingii (S. Watson) M.E. Jones
- King's Sandwort - Arenaria Kingii (S. Watson) M.E. Jones ssp. kingii
- King's Scepter Gentian - Gentiana Sceptrum Griseb.
- King's Serpentweed - Tonestus Kingii (D.C. Eaton) G.L. Nesom
- King's Serpentweed - Tonestus Kingii (D.C. Eaton) G.L. Nesom var. kingii
- Kingcup Cactus - Echinocereus Triglochidiatus Engelm.
- Kingcup Cactus - Echinocereus Triglochidiatus Engelm. var. triglochidiatus
- Kingdevil - Hieracium Praealtum Vill. ex Gochnat
- Kingdevil - Hieracium Praealtum Vill. ex Gochnat var. decipiens W.D.J. Koch
- Kingdevil - Hieracium Praealtum Vill. ex Gochnat var. praealtum Vill. ex Gochnat [excluded]
- Kingman's Dotted Lichen - Bacidia Kingmanii Hasse
- Kings Mountain Manzanita - Arctostaphylos Regismontana Eastw.
- Kings River Buckwheat - Eriogonum Nudum Douglas ex Benth. var. regirivum Reveal & J. Stebbins
- Kings River Monkeyflower - Mimulus Acutidens Greene
- Kingston Dewberry - Rubus Particeps L.H. Bailey
- Kingston Mountain Mousetail - Ivesia Patellifera (J.T. Howell) Ertter
- Kingston Mountains Bedstraw - Galium Hilendiae Dempster & Ehrend. ssp. kingstonense (Dempster) Dempster & Ehren
- Kingston's Hawthorn - Crataegus Kingstonensis Sarg.
- Kinnickinnick Dewberry - Rubus Multifer L.H. Bailey
- Kinnikinnick - Arctostaphylos Uva-ursi (L.) Spreng.
- Kio'ele - Hedyotis Coriacea Sm.
- Kiponapona - Phyllostegia Racemosa Benth.
- Kipuka Piaula - Melicope Zahlbruckneri (Rock) T.G. Hartley & B.C. Stone
- Kirilow's Indigo - Indigofera Kirilowii Maxim. ex Palib.
- Kirk's Landolphia - Landolphia Kirkii Dyer
- Kirk's Violet - Viola Adunca Sm. var. kirkii V.G. Duran
- Kirschsteiniothelia Lichen - Kirschsteiniothelia Acerina (Rossman & Wilcox) D. Hawksw.
- Kirschsteiniothelia Lichen - Kirschsteiniothelia Aethiops (Berk. & Curtis) D. Hawksw.
- Kirschsteiniothelia Lichen - Kirschsteiniothelia D. Hawksw.
- Kirschsteiniothelia Lichen - Kirschsteiniothelia Recessa (Cooke & Peck) D. Hswksw.
- Kirschsteiniothelia Lichen - Kirschsteiniothelia Thujina (Peck) D. Hawksw.
- Kirtley's Nemophila - Nemophila Kirtleyi L.F. Hend.
- Kiss Me Over The Garden Gate - Polygonum Orientale L.
- Kiss Me Quick - Portulaca Pilosa L.
- Kisses - Oenothera Suffulta (Engelm. ex A. Gray) W.L. Wagner & Hoch
- Kisses - Oenothera Suffulta (Engelm. ex A. Gray) W.L. Wagner & Hoch ssp. suffulta
- Kitchen Sage - Salvia Officinalis L.
- Kittatinny Blackberry - Rubus Bellobatus L.H. Bailey
- Kittentail - Besseya Rydb.
- Kittentails - Synthyris Benth.
- Kittitas Larkspur - Delphinium Multiplex (Ewan) C.L. Hitchc.
- Kiwi - Actinidia Chinensis Planch.
- Kiwi - Actinidia Chinensis Planch. var. deliciosa (A. Chev.) A. Chev.
- Kjellman's Groundsel - Tephroseris Kjellmanii (A.E. Porsild) Holub
- Klamath Arnica - Arnica Spathulata Greene
- Klamath Basin Milkvetch - Astragalus Californicus (A. Gray) Greene
- Klamath Cinquefoil - Potentilla Millefolia Rydb. var. klamathensis (Rydb.) Jeps.
- Klamath Coneflower - Rudbeckia Klamathensis P. Cox & Urbatsch
- Klamath Erigeron - Erigeron Breweri A. Gray var. klamathensis G.L. Nesom
- Klamath Fawnlily - Erythronium Klamathense Applegate
- Klamath Fir Dwarf Mistletoe - Arceuthobium Abietinum (Engelm.) Hawksw. & Wiens ssp. wiensii Mathiasen & C.M. Daughert
- Klamath Gooseberry - Ribes Inerme Rydb. var. klamathense (Coville) Jeps.
- Klamath Iris - Iris Tenax Douglas ex Lindl. ssp. klamathensis Lenz
- Klamath Manzanita - Arctostaphylos Klamathensis S.W. Edwards, Keeler-Wolf & W. Knight
- Klamath Mountain Buckwheat - Eriogonum Hirtellum J.T. Howell & Bacig.
- Klamath Mountain Catchfly - Silene Salmonacea T.W. Nelson, J.P. Nelson & S.A. Erwin
- Klamath Mountain Mahogany - Cercocarpus Montanus Raf. var. macrourus (Rydb.) F.L. Martin
- Klamath Plum - Prunus Subcordata Benth.
- Klamath Plum - Prunus Subcordata Benth. var. rubicunda Jeps.
- Klamath Plum - Prunus Subcordata Benth. var. subcordata
- Klamath River Rockcress - Arabis Rollei Rollins
- Klamath Rockcress - Arabis Subpinnatifida S. Watson
- Klamath Rushlily - Hastingsia Serpentinicola Becking
- Klamath Sedge - Carex Klamathensis B.L. Wilson & Janeway
- Kleberg's Bluestem - Dichanthium Annulatum (Forssk.) Stapf
- Kleberg's Saltbush - Atriplex Klebergorum M.C. Johnst.
- Kleingrass - Panicum Coloratum L.
- Kleinhovia - Kleinhovia L.
- Kleinia Anteuphorbium (L.) Haw.
- Kleinia Glandulosa Moc. & Sessé
- Kleinia Mill.
- Kleinia Ruderalis Jacq.
- Klickitat Aster - Eucephalus Glaucescens (A. Gray) Greene
- Klinggraeff's Bryum Moss - Bryum Klinggraeffii Schimp.
- Klotzsch's Brachymenium Moss - Brachymenium Klotzschii (Schwägr.) Par.
- Kmekumer - Parkia Parvifoliola Hosok.
- Knapp Brickellbush - Brickellia Knappiana E. Drew
- Knapweed - Centaurea L.
- Knapweed - Centaurea ×pouzinii DC.
- Knapweed - Centaurea ×psammogena G. Gáyer
- Knapweed - Cyanopsis Cass.
- Kneeland Prairie Pennycress - Noccaea Fendleri (A. Gray) Holub ssp. californica (S. Watson) Al-Shehbaz & M. Koc
- Kneeling Angelica - Angelica Genuflexa Nutt.
- Kneiff's Drepanocladus Moss - Drepanocladus Aduncus (Hedw.) Warnst. var. kneiffii (Schimp.) Mönk.
- Kneiffia Allenii (Britton) Small
- Kneiffia Arenicola Small
- Kneiffia Brevistipata (Pennell) Munz
- Kneiffia Fruticosa (L.) Raimann
- Kneiffia Glauca (Michx.) Spach
- Kneiffia Hybrida (Michx.) Small
- Kneiffia Latifolia Rydb.
- Kneiffia Linearis (Michx.) Spach
- Kneiffia Linifolia (Nutt.) Spach
- Kneiffia Longipedicellata Small
- Kneiffia Perennis (L.) Pennell
- Kneiffia Pratensis Small
- Kneiffia Pumila (L.) Spach
- Kneiffia Riparia (Nutt.) Small
- Kneiffia Semiglandulosa Pennell
- Kneiffia Subglobosa Small
- Kneiffia Sumstinei Jennings
- Kneiffia Tetragona (Roth) Pennell
- Knieskern's Beaksedge - Rhynchospora Knieskernii Carey
- Knieskern's Hawthorn - Crataegus Knieskerniana Sarg.
- Knife Acacia - Acacia Cultriformis A. Cunn. ex G. Don
- Knifeleaf Condalia - Condalia Spathulata A. Gray
- Knight's Milkvetch - Astragalus Knightii Barneby
- Knight's-spur - Consolida Gray
- Knights Plume Moss - Ptilium Crista-castrensis (Hedw.) De Not.
- Knob Sedge - Carex Inversa R. Br.
- Knobcone Pine Dwarf Mistletoe - Arceuthobium Siskiyouense Hawksw., Wiens & Nickrent
- Knobcone Pine - Pinus Attenuata Lemmon
- Knockaway - Ehretia Anacua (Terán & Berl.) I.M. Johnst.
- Knoke's Biscuitroot - Lomatium Knokei Darrach
- Knot Grass - Setaria Reverchonii (Vasey) Pilg. ssp. firmula (Hitchc. & Chase) W.E. Fox
- Knotgrass - Paspalum Distichum L.
- Knotsheath Sedge - Carex Retrorsa Schwein.
- Knotted Clover - Trifolium Striatum L.
- Knotted Hedgeparsley - Torilis Nodosa (L.) Gaertn.
- Knotted Pearlwort - Sagina Nodosa (L.) Fenzl
- Knotted Pearlwort - Sagina Nodosa (L.) Fenzl ssp. borealis Crow
- Knotted Pearlwort - Sagina Nodosa (L.) Fenzl ssp. nodosa
- Knotted Rush - Juncus Nodosus L.
- Knotted Rush - Juncus Nodosus L. var. meridianus F.J. Herm.
- Knotted Rush - Juncus Nodosus L. var. nodosus
- Knotted Spikerush - Eleocharis Interstincta (Vahl) Roem. & Schult.
- Knotweed - Polygonum L.
- Knotweed - Polygonum Oxyspermum C.A. Mey. & Bunge ex Ledeb.
- Knotweed - Polygonum Paronychioides Small ex Rydb.
- Knotweed - Polygonum Salicifolium Brouss. ex Willd.
- Knotweed Spineflower - Chorizanthe Polygonoides Torr. & A. Gray
- Knotweed Spineflower - Chorizanthe Polygonoides Torr. & A. Gray var. longispina (Goodman) Munz
- Knotweed Spineflower - Chorizanthe Polygonoides Torr. & A. Gray var. polygonoides
- Knowlton's Bryum Moss - Bryum Knowltonii Barnes
- Knowlton's Hophornbeam - Ostrya Knowltonii Sarg.
- Knowlton's Miniature Cactus - Pediocactus Knowltonii L.D. Benson
- Knudsen's Birdnest Fern - Asplenium Polyodon G. Forst. var. knudsenii (Hillebr.) Morton
- Ko'oko'olau - Lipochaeta Perdita Sherff
- Ko'oloa 'ula - Abutilon Menziesii Seem.
- Koa - Acacia Koa A. Gray
- Koaoha - Acacia Koaia Hillebr.
- Kobresia Bellardii (All.) K. Koch
- Kobresia Bellardii (All.) K. Koch var. macrocarpa (Clokey ex Mack.) Harrington
- Kobresia Bipartita (All.) Dalla Torre, nom. utique rej.
- Kobresia Elachycarpa (Fernald) Fernald
- Kobresia Hyperborea A.E. Porsild
- Kobresia Hyperborea A.E. Porsild var. alaskana Duman
- Kobresia Macrocarpa Clokey ex Mack.
- Kobresia Schoenoides (C.A. Mey.) Steud. p.p.
- Kobresia Schoenoides (C.A. Mey.) Steud. var. lepagei (Duman) B. Boivin
- Kobresia Simpliciuscula (Wahlenb.) Mack. var. americana Duman
- Kobuk Locoweed - Oxytropis Kobukensis S.L. Welsh
- Kobus Magnolia - Magnolia Kobus DC.
- Koch's Entosthodon Moss - Entosthodon Kochii H.A. Crum & L.E. Anderson
- Koch's Fissidens Moss - Fissidens Kochii H.A. Crum & L.E. Anderson
- Kochia Alata Bates
- Kochia Americana S. Watson
- Kochia Americana S. Watson var. californica (S. Watson) M.E. Jones
- Kochia Americana S. Watson var. vestita S. Watson
- Kochia Aphylla R. Br.
- Kochia Atriplicifolia Spreng.
- Kochia Brevifolia R. Br.
- Kochia Californica S. Watson
- Kochia Erioclada (Benth.) Gauba
- Kochia Georgei Diels
- Kochia Hirsuta (L.) Nolte
- Kochia Hyssopifolia (Pall.) Schrad.
- Kochia Iranica Bornm.
- Kochia Prostrata (L.) Schrad.
- Kochia Prostrata (L.) Schrad. var. villosissima Bong. & C.A. Mey.
- Kochia Pyramidata Benth.
- Kochia Roth
- Kochia Scoparia (L.) Schrad.
- Kochia Scoparia (L.) Schrad. var. culta Farw.
- Kochia Scoparia (L.) Schrad. var. pubescens Fenzl
- Kochia Scoparia (L.) Schrad. var. subvillosa Moq.
- Kochia Scoparia (L.) Schrad. var. trichophila (Stapf) L.H. Bailey, database arti
- Kochia Scoparia (L.) Schrad. var. trichophylla (Stapf) L.H. Bailey
- Kochia Sedifolia F. Muell.
- Kochia Sieversiana (Pall.) C.A. Mey.
- Kochia Trichophila Stapf, database artifact
- Kochia Trichophylla Stapf
- Kochia Vestita (S. Watson) Rydb.
- Kodiak Keyflower - Dactylorhiza Aristata (Fisch. ex Lindl.) Soó var. kodiakensis Luer & Luer f.
- Kodomillet - Paspalum Scrobiculatum L.
- Koeberlinia Spinosa Zucc. ssp. tenuispina (Kearney & Peebles) A.E. Murray
- Koehler's Rockcress - Arabis Koehleri Howell
- Koehler's Rockcress - Arabis Koehleri Howell var. koehleri
- Koehler's Rockcress - Arabis Koehleri Howell var. stipitata Rollins
- Koeleria Albescens auct.
- Koeleria Atroviolacea Domin
- Koeleria Cairnesiana Hultén
- Koeleria Caudata (Link) Steud.
- Koeleria Caudata (Link) Steud. var. algeriensis Domin
- Koeleria Cristata Pers. var. longifolia Vasey ex Burtt Davy
- Koeleria Cristata Pers. var. pinetorum Abrams
- Koeleria Cristata auct. non Pers. p.p.
- Koeleria Gerardii (Vill.) Shinners
- Koeleria Gracilis Pers.
- Koeleria Grandis Besser ex Gorski
- Koeleria Nitida Nutt., nom. utique rej.
- Koeleria Phleoides (Vill.) Pers.
- Koeleria Polonica Domin
- Koeleria Pyramidata auct. non (Lam.) P. Beauv. p.p.
- Koeleria Yukonensis Hultén
- Koellensteinia - Koellensteinia Rchb. f.
- Koellia Albescens (Torr. & A. Gray) Kuntze
- Koellia Aristata (Michx.) Kuntze
- Koellia Beadlei Small
- Koellia Clinopodioides (Torr. & A. Gray) Kuntze
- Koellia Curvipes Greene
- Koellia Dubia (A. Gray) Small
- Koellia Flexuosa auct. non (Walter) MacMill.
- Koellia Hugeri Small
- Koellia Hyssopifolia (Benth.) Britton
- Koellia Incana (L.) Kuntze
- Koellia Leptodon (A. Gray) Small
- Koellia Montana (Michx.) Kuntze
- Koellia Multiflora Small
- Koellia Mutica (Michx.) Kuntze
- Koellia Nuda (Nutt.) Kuntze
- Koellia Pauciflora Small
- Koellia Pilosa (Nutt.) Britton
- Koellia Pycnanthemoides (Leavenworth) Kuntze
- Koellia Verticillata (Michx.) Kuntze
- Koellia Virginiana (L.) MacMill.
- Koelreuteria Apiculata Rehder & E.H. Wilson
- Koelreuteria Formosana Hayata
- Koelreuteria - Koelreuteria Laxm.
- Koelreuteria Vitiensis A.C. Sm.
- Koenigia - Koenigia L.
- Koerberia Lichen - Koerberia A. Massal.
- Koerberia Lichen - Koerberia Biformis A. Massal.
- Koerberiella Stein
- Koerberiella Wimmeriana (Körb.) Stein
- Kohala False Lobelia - Trematolobelia Wimmeri O. Deg. & I. Deg.
- Kohala False Ohelo - Wikstroemia Pulcherrima Skottsb.
- Kohala Mountain Clermontia - Clermontia Drepanomorpha Rock
- Kohala Mountain Cyrtandra - Cyrtandra Kohalae Rock
- Kohala Mountain Stenogyne - Stenogyne Cranwelliae Sherff
- Kohala Summit Melicope - Melicope Pseudoanisata (Rock) T.G. Hartley & B.C. Stone
- Kohleria Eriantha (Benth.) Hanst.
- Kohleria - Kohleria Regel
- Kohlmeyera Lichen - Kohlmeyera Complicatula (Nyl.) Schatz
- Kohlmeyera Lichen - Kohlmeyera Schatz
- Kohlrabi - Brassica Oleracea L. var. gongylodes L.
- Kohlrauschia Velutina (Guss.) Rchb.
- Koholapehu - Dubautia Latifolia (A. Gray) D.D. Keck
- Koi - Coprosma Kauensis (A. Gray) A. Heller
- Kokea Lau Li'i - Myrsine Sandwicensis A. DC.
- Kokee Colicwood - Myrsine Knudsenii (Rock) Hosaka
- Kokee Plateau Melicope - Melicope Nealiae (B.C. Stone) T.G. Hartley & B.C. Stone
- Kokee Starviolet - Hedyotis Knudsenii (Hillebr.) Fosberg
- Kokee Stream Melicope - Melicope Degeneri (B.C. Stone) T.G. Hartley & B.C. Stone
- Kokee Yellow Loosestrife - Lysimachia Glutinosa Rock
- Kokia Rockii Lewt.
- Koko - Chamaesyce Atrococca (A. Heller) Croizat & O. Deg.
- Kokolau - Bidens Amplectens Sherff
- Kokomalei - Chamaesyce Kuwaleana (O. Deg. & Sherff) O. Deg. & I. Deg.
- Kokrines Locoweed - Oxytropis Kokrinensis A.E. Porsild
- Kolea Lau Nui - Myrsine Lessertiana A. DC.
- Kolekole Cyanea - Cyanea Kolekoleensis (H. St. John) Lammers
- Koli'i - Trematolobelia Macrostachys (Hook. & Arn.) Zahlbr.
- Kolkwitzia - Kolkwitzia Graebn.
- Koloa Clermontia - Clermontia Carinifera Levl., nom. inq.
- Kolokolo - Grammitis Tenella Kaulf.
- Kombe Arrow Poison - Strophanthus Kombe Oliv.
- Kona Cheesewood - Pittosporum Hosmeri Rock
- Kona Panicgrass - Panicum Konaense Whitney & Hosaka
- Konakona - Panicum Nephelophilum Gaudich.
- Koniga Maritima (L.) R. Br.
- Konocti Manzanita - Arctostaphylos Manzanita Parry ssp. elegans (Eastw.) P.V. Wells
- Konor Rhododendron - Rhododendron Konori Becc.
- Koolau Gap Catchfly - Silene Degeneri Sherff
- Koolau Range 'ohe - Tetraplasandra Gymnocarpa (Hillebr.) Sherff
- Koolau Range Beggarticks - Bidens Asymmetrica (Levl.) Sherff
- Koolau Range Cheesewood - Pittosporum Glabrum Hook. & Arn.
- Koolau Range Colicwood - Myrsine Fosbergii Hosaka
- Koolau Range Cyrtandra - Cyrtandra Kalihii Wawra
- Koolau Range Delissea - Delissea Subcordata Gaudich.
- Koolau Range Labordia - Labordia Cyrtandrae (Baill.) H. St. John
- Koolau Range Lobelia - Lobelia Gaudichaudii A. DC.
- Koolau Range Lobelia - Lobelia Gaudichaudii A. DC. ssp. gaudichaudii
- Koolau Range Lobelia - Lobelia Gaudichaudii A. DC. ssp. koolauensis (Hosaka & Fosberg) Lammers
- Koolau Range Melicope - Melicope Hiiakae (B.C. Stone) T.G. Hartley & B.C. Stone
- Koolau Range Melicope - Melicope Lydgatei (Hillebr.) T.G. Hartley & B.C. Stone
- Koolau Range Papala - Charpentiera Ovata Gaudich.
- Koolau Range Papala - Charpentiera Ovata Gaudich. var. niuensis Sohmer
- Koolau Range Papala - Charpentiera Ovata Gaudich. var. ovata
- Koolau Range Peperomia - Peperomia Ellipticibacca C. DC.
- Koolau Range Pritchardia - Pritchardia Martii (Gaudich.) H. Wendl.
- Koolau Range Rollandia - Cyanea Crispa (Gaudich.) Lammers, Givnish & Sytsma
- Koolau Range Sandmat - Chamaesyce Rockii (Forbes) Croizat & O. Deg.
- Koolau Range Wild Coffee - Psychotria Fauriei (Levl.) Fosberg
- Koolau Rosette Grass - Dichanthelium Koolauense (H. St. John & Hosaka) C.A. Clark & Gould
- Kopa - Hedyotis Schlechtendahliana Steud.
- Kopa - Hedyotis Schlechtendahliana Steud. ssp. remyi (Hillebr.) Fosberg
- Kopa - Hedyotis Schlechtendahliana Steud. ssp. schlechtendahliana
- Kopa - Hedyotis Schlechtendahliana Steud. ssp. waimeae (Wawra) W.L. Wagner & Lorence
- Kopiko 'ula - Psychotria Hawaiiensis (A. Gray) Fosberg
- Kopiko 'ula - Psychotria Hawaiiensis (A. Gray) Fosberg var. hawaiiensis
- Kopiko 'ula - Psychotria Hawaiiensis (A. Gray) Fosberg var. hillebrandii (Rock) Fosberg
- Kopiko 'ula - Psychotria Hawaiiensis (A. Gray) Fosberg var. scoriacea (Rock) Fosberg
- Kopiko Kea - Psychotria Kaduana (Cham. & Schltdl.) Fosberg
- Kopsia Carolinensis Kaneh.
- Kopsia - Kopsia Blume, nom. cons.
- Korean Cherry - Prunus Maximowiczii Rupr.
- Korean Clover - Kummerowia Stipulacea (Maxim.) Makino
- Korean Hornbeam - Carpinus Coreana Nakai
- Korean Lawngrass - Zoysia Japonica Steud.
- Korean Rockfern - Polystichum Tsus-simense (Hook.) J. Sm.
- Korean Tasselfern - Polystichum Polyblepharum C. Presl
- Koreanspice Viburnum - Viburnum Carlesii Hemsl.
- Kori-yanagi - Salix Koriyanagi Kimura ex Goerz
- Koronivia Grass - Urochloa Humidicola (Rendle) Morrone & Zuloaga
- Koror Timonius - Timonius Korrensis Kaneh.
- Korthal Mistletoe - Korthalsella V. Tiegh.
- Korthalsella Cylindrica (v. Tiegh.) Engl. var. teres (Wawra) H. St. John
- Korthalsella Latissima (v. Tiegh.) Danser var. crassa (v. Tiegh.) Danser
- Korthalsella Remyana v. Tiegh. var. wawrae (v. Tiegh.) Danser
- Korthalsella Remyi (v. Tiegh.) Skottsb.
- Korycarpus Arundinaceus Zea ex Lag.
- Koshum - Dovyalis Abyssinica (A. Rich.) Warb.
- Kosrae Syzygium - Syzygium Stelechanthoides Kaneh.
- Kosrae Wild Coffee - Psychotria Kosraensis Lorence & K.R. Wood
- Kosteletzkya Althaeifolia (Chapm.) Rusby
- Kosteletzkya - Kosteletzkya C. Presl
- Kosteletzkya Pentacarpos (L.) Ledeb.
- Kosteletzkya Pentasperma Griseb.
- Kosteletzkya Smilacifolia A. Gray
- Kosteletzkya Virginica (L.) C. Presl ex A. Gray var. althaeifolia Chapm.
- Kosteletzkya Virginica (L.) C. Presl ex A. Gray var. aquilonia Fernald
- Kotzebue's Grass Of Parnassus - Parnassia Kotzebuei Cham. ex Spreng.
- Kou - Cordia Subcordata Lam.
- Kousa Dogwood - Cornus Kousa Hance
- Kowhai - Sophora Microphylla Aiton
- Koyamacalia Auriculata (DC.) H. Rob. & Brettell
- Koyukuk Locoweed - Oxytropis Arctica R. Br. var. koyukukensis (A.E. Porsild) S.L. Welsh
- Kozlov's Pterygoneurum Moss - Pterygoneurum Kozlovii Laz.
- Kraemer's Dendrobium - Dendrobium Kraemeri Schltr.
- Kraenzlin's Peacock Orchid - Psychilis Kraenzlinii (Bello) Sauleda
- Kral's Aster - Symphyotrichum Kralii G.L. Nesom
- Kral's Beardtongue - Penstemon Kralii D. Estes
- Kral's Sedge - Carex Kraliana Naczi & Bryson
- Kral's Yelloweyed Grass - Xyris Longisepala Kral
- Krameria Glandulosa Rose & Painter
- Krameria Imparata (J.F. Macbr.) Britton
- Krameria Parvifolia Benth.
- Krameria Parvifolia Benth. var. glandulosa (Rose & Painter) J.F. Macbr.
- Krameria Parvifolia Benth. var. imparata J.F. Macbr.
- Krameria Secundiflora auct. non DC.
- Krameria Spathulata Small
- Krapovickasia - Krapovickasia Fryxell
- Krapovickasia - Krapovickasia Physaloides (C. Presl) Fryxell
- Krascheninnikov's Navel Lichen - Umbilicaria Krascheninnikovii (Savicz) Zahlbr.
- Kraunhia Floribunda (Willd.) Taubert
- Kraunhia Frutescens (L.) Greene
- Kraunhia Macrostachya (Torr. & A. Gray) Small
- Krause's Sedge - Carex Krausei Boeckeler
- Krause's Sorrel - Rumex Krausei Jurtzev & V.V. Petrovsky
- Krauss' Spikemoss - Selaginella Kraussiana (Kunze) A. Braun
- Krekre - Tetrazygia Elaeagnoides (Sw.) DC.
- Kremmling Milkvetch - Astragalus Osterhoutii M.E. Jones
- Krigia Amplexicaulis (Michx.) Nutt.
- Krigia Biflora (Walter) S.F. Blake ssp. glandulifera (Fernald) Iltis
- Krigia Cespitosa (Raf.) K.L. Chambers, orth. var.
- Krigia Gracilis (DC.) Shinners
- Krigia Oppositifolia Raf.
- Kristinsson's Felt Lichen - Peltigera Kristinssonii Vitik.
- Krog's Tube Lichen - Hypogymnia Krogiae Ohlsson
- Kruckeberg's Campion - Silene Drummondii Hook. var. kruckebergii Bocquet
- Kruckeberg's Hollyfern - Polystichum Kruckebergii W.H. Wagner
- Krug's Clearweed - Pilea Krugii Urb.
- Krug's Darlingplum - Reynosia Krugii Urb.
- Krug's Foldwing - Dicliptera Krugii Urb.
- Krug's Peacock Orchid - Psychilis Krugii (Bello) Sauleda
- Krug's Roughleaf - Leandra Krugiana (Cogn.) W.S. Judd & Skean
- Krug's Spikemoss - Selaginella Krugii Hieron.
- Krug's Sweetwood - Nectandra Krugii Mez
- Krug's White Morning-glory - Ipomoea Krugii Urb.
- Krugiodendron - Krugiodendron Urb.
- Kruhsea Streptopoides (Ledeb.) Kearney p.p.
- Krukeberg's Jewelflower - Streptanthus Morrisonii F.W. Hoffm. ssp. kruckebergii Dolan & LaPre
- Krynitzkia Crassisepala (Torr. & A. Gray) A. Gray
- Krynitzkia Jamesii (Torr.) A. Gray
- Krynitzkia Utahensis A. Gray
- Ksid - Fagraea Ksid Gilg & Gilg-Ben.
- Kuawawaenohu - Alsinidendron Lychnoides (Hillebr.) Sherff
- Kudzu - Pueraria Dc.
- Kudzu - Pueraria Montana (Lour.) Merr.
- Kudzu - Pueraria Montana (Lour.) Merr. var. lobata (Willd.) Maesen & S. Almeida
- Kuhi'aikamo'owahie - Lobelia Hypoleuca Hillebr.
- Kuhnia Chlorolepis Wooton & Standl.
- Kuhnia Eupatorioides L.
- Kuhnia Eupatorioides L. var. angustifolia Raf.
- Kuhnia Eupatorioides L. var. chlorolepis (Wooton & Standl.) Cronquist
- Kuhnia Eupatorioides L. var. corymbulosa Torr. & A. Gray
- Kuhnia Eupatorioides L. var. floridana R.W. Long
- Kuhnia Eupatorioides L. var. gracilis Torr. & A. Gray
- Kuhnia Eupatorioides L. var. gracillima A. Gray
- Kuhnia Eupatorioides L. var. ozarkana Shinners
- Kuhnia Eupatorioides L. var. pyramidalis Raf.
- Kuhnia Eupatorioides L. var. texana Shinners
- Kuhnia Glutinosa Elliott
- Kuhnia Hitchcockii A. Nelson
- Kuhnia Leptophylla Scheele
- Kuhnia Leptophylla Scheele var. mexicana Shinners
- Kuhnia Microphylla Shinners
- Kuhnia Mosieri Small
- Kuhnia Rosemarinifolia Vent. var. chlorolepis (Wooton & Standl.) S.F. Blake, orth. var.
- Kuhnia Rosemarinifolia Vent., orth. var.
- Kuhnia Rosmarinifolia Vent.
- Kuhnia Rosmarinifolia Vent. var. chlorolepis (Wooton & Standl.) S.F. Blake
- Kuhnia Shaffneri A. Gray
- Kuhnistera Adenopoda Rydb.
- Kuhnistera Pinnata (J.F. Gmel.) Kuntze
- Kuhnistera Truncata Small
- Kukaemoa - Melicope Clusiifolia (A. Gray) T.G. Hartley & B.C. Stone
- Kula Stenogyne - Stenogyne Cinerea Hillebr.
- Kuleshan Sarcogyne Lichen - Sarcogyne Kuleshanensis (Herre) ?, ined.?
- Kulsill - Myrsine Palauensis (Mez) Fosberg & Sachet
- Kuma Bamboo Grass - Sasa Veitchii (Carrière) Rehder
- Kummerowia - Kummerowia Schindl.
- Kumquat - Fortunella Swingle
- Kunana Pepperwort - Lepidium Bidentatum Morton
- Kunana Pepperwort - Lepidium Bidentatum Morton var. owaihiense (Cham. & Schltdl.) Fosberg
- Kunth's Beaksedge - Rhynchospora Kunthii Nees ex Kunth
- Kunth's Cyanea - Cyanea Kunthiana (Gaudich.) Hillebr.
- Kunth's Evening Primrose - Oenothera Kunthiana (Spach) Munz
- Kunth's Hacksaw Fern - Doodia Kunthiana Gaudich.
- Kunth's Maiden Fern - Thelypteris Kunthii (Desv.) Morton
- Kunth's Onion - Allium Kunthii G. Don
- Kunth's Smallgrass - Microchloa Kunthii Desv.
- Kunzea Baxteri (Klotzsch) Schauer
- Kunzea - Kunzea Rchb.
- Kunzea Peduncularis F. Muell.
- Kunzea Pomifera F. Muell.
- Kura Clover - Trifolium Ambiguum M. Bieb.
- Kure Atoll Nehe - Lipochaeta Integrifolia (Nutt.) A. Gray
- Kurile Larch - Larix Gmelinii (Rupr.) Rupr. var. japonica (Maxim. ex Regel) Pilg.
- Kurogane Holly - Ilex Rotunda Thunb.
- Kuroiwa Grass - Thuarea Involuta (G. Forst.) R. Br. ex Roem. & Schult.
- Kuroiwa Grass - Thuarea Pers.
- Kurzia G. Martens
- Kurzia Makinoana (Steph.) Grolle
- Kurzia Pauciflora (Dicks.) Grolle
- Kurzia Setacea (Weber) Grolle
- Kurzia Sylvatica (A. Evans) Grolle
- Kwahu - Barleria Opaca (Vahl) Nees
- Kwakiutl's Hollyfern - Polystichum Kwakiutlii W.H. Wagner
- Kwini - Mangifera Odorata Griffith
- Kyasuma Grass - Pennisetum Pedicellatum Trin.
- Kyasuma Grass - Pennisetum Pedicellatum Trin. ssp. unispiculum Brunken
- Kybean Gum - Eucalyptus Parvula L.A.S. Johnson & K.D. Hill
- Kyhosia - Kyhosia B.g. Baldw.
- Kyllinga Brevifolioides (Thieret & Delahoussaye) G. Tucker
- Kyllinga Hyalina (Vahl) T. Koyama
- Kyllinga Peruviana Lam.
- Kyllinga Pungens Link
- Kyllinga Sesquiflora Torr.
- Kyllinga Tenuifolia Steud.
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