Petalostemon purpureus (Vent.) Rydb. var. mollis (Rydb.) B. Boivin
Scientific Name: Petalostemon purpureus (Vent.) Rydb. var. mollis (Rydb.) B. Boivin
General Information | |
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Usda Symbol | PEPUM |
Group | Dicot |
Life Cycle | Perennial |
Growth Habits | Forb/herbSubshrub, |
Native Locations | PEPUM |
Plant Guide
Use a soil moisture meter to monitor the soil moisture where Petalostemon purpureus (Vent.) Rydb. var. mollis (Rydb.) B. Boivin is planted.
Fact Sheet
Uses
Erosion Control: Purple prairie clover is used in a mixture with grass and forbs to prevent soil erosion on dam structures, roadsides, and other critical erodible areas. Wildlife: Purple prairie clover is readily consumed by many types of wildlife. During early growth stages, its foliage is consumed due to its high nutritional value. Purple prairie clover seed is consumed by birds and small mammals. The purple flowers also attract many different species of pollinators such as bees and butterflies. Livestock: Purple prairie clover can be grazed by livestock, primarily sheep and goats. This plant is highly palatable and nutritious. Landscaping/Beautification: Purple prairie clover is used in wildlife gardens, parks, prairie restorations, and recreation areas.
Status
Please consult the PLANTS Web site (http://plants.usda.gov) and your State Department of Natural Resources for this plant’s current status (e.g. threatened or endangered species, state noxious status, and wetland indicator values).
Weediness
This plant may become weedy or invasive in some regions or habitats and may displace desirable vegetation if not properly managed. Please consult your local NRCS Field Office, Cooperative Extension Service office, state natural resource, or state agriculture department regarding its status and use. Weed information is also available from the PLANTS Web site at http://www.plants.usda.gov . Please consult this and Related Web Sites and view the plant profile for this species for further information.
Description
Purple prairie clover is a native, warm-season, perennial legume. The plant has one to many stems that grow up to 2.5 feet long from a woody, stout taproot that branches near the surface. The leaves are about one inch long and very narrow. They alternate and have an average of five leaflets per pinnate compound. The flowers appear on the end of the stems and have cylindrical floral spikes about two inches long. The flowers open beginning at the base of the flower head and progress up to the tip. Seed is produced in a seed pod about ½ inch long. The seed pod will contain between one to two seed each. Purple prairie clover blooms from April to June with the seed maturing from mid July to late August
Adaptation
Purple prairie clover is adapted to slopes along hillsides, prairies, and plains. The plant is widely distributed throughout central, south, and west Texas. It occurs mostly on sandy, sandy loam, and other moderately drained soils Purple prairie clover area of distribution from PLANTS database.
Establishment
Purple prairie clover should be planted on a clean, firm seedbed. Planting can be done using either a grass drill or broadcast seeder, but grass drills are the most successful method of planting. Seed should be placed ½ to ¼ inch deep. Purple prairie clover should be planted at a rate of 3 lbs pure live seed (pls) per acre. When planting this as a component of a seed mixture, the seeding rate should be adjusted to the desired percent of the mix.
Management
Purple prairie clover is commonly found as a component in seed mixtures for range seeding and conservation cover. Stands should be well established before livestock grazing is permitted. The plant does not tolerate continuous grazing or heavy overuse. Proper management of purple prairie clover is required to ensure the plant is not overgrazed or over utilized by livestock or wildlife. Consult your local NRCS Field Office for assistance with planning and applying prescribed grazing. Soil tests should be conducted regularly to determine the amount of fertilizer needed to maintain a medium level of fertility.
Pests and Potential Problems
None known
Environmental Concerns
None known
Control
Please contact your local agricultural extension specialist or county weed specialist to learn what works best in your area and how to use it safely, Always read label and safety instructions for each control method, Trade names and control measures appear in this document only to provide specific information, USDA NRCS does not guarantee or warranty the products and control methods named, and other products may be equally effective, Cultivars, Improved, and Selected Materials (and area of origin) Cuero Germplasm was released from the James E, “Bud” Smith Plant Materials Center, Knox City, TX in 2003, It was collected originally in 1970 from native plants in DeWitt County, TX approximately 11 miles from the town of Cuero, USDA NRCS Prepared By: Brandon Carr, USDA NRCS James E, “Bud” Smith Plant Materials Center, Knox City, Texas Species Coordinator: , Use soil moisture sensors to measure the soil moisture of Petalostemon purpureus (Vent.) Rydb. var. mollis (Rydb.) B. Boivin.
Plant Traits
Growth Requirements
CaCO3 Tolerance | Medium |
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Frost Free Days, Minimum | 120 |
Frost Free Days, Minimum | 120 |
Fire Tolerance | Medium |
Fire Tolerance | Medium |
Fertility Requirement | Medium |
Fertility Requirement | Medium |
Drought Tolerance | Medium |
Drought Tolerance | Medium |
Cold Stratification Required | Yes |
Cold Stratification Required | Yes |
Temperature, Minimum (°F) | -38 |
CaCO3 Tolerance | Medium |
Anaerobic Tolerance | None |
Anaerobic Tolerance | None |
Adapted to Medium Textured Soils | Yes |
Adapted to Medium Textured Soils | Yes |
Adapted to Fine Textured Soils | Yes |
Adapted to Fine Textured Soils | Yes |
Adapted to Coarse Textured Soils | Yes |
Adapted to Coarse Textured Soils | Yes |
Hedge Tolerance | None |
Temperature, Minimum (°F) | -38 |
Shade Tolerance | Intolerant |
Shade Tolerance | Intolerant |
Salinity Tolerance | None |
Salinity Tolerance | None |
Root Depth, Minimum (inches) | 16 |
Root Depth, Minimum (inches) | 16 |
Precipitation, Minimum | 16 |
Precipitation, Minimum | 16 |
Precipitation, Maximum | 24 |
Precipitation, Maximum | 24 |
pH, Minimum | 6.0 |
pH, Minimum | 6.0 |
pH, Maximum | 8.0 |
pH, Maximum | 8.0 |
Moisture Use | Medium |
Moisture Use | Medium |
Hedge Tolerance | None |
Morphology/Physiology
Active Growth Period | Spring and Summer |
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Toxicity | None |
Toxicity | None |
Shape and Orientation | Erect |
Shape and Orientation | Erect |
Resprout Ability | No |
Fall Conspicuous | No |
Foliage Porosity Winter | Porous |
Foliage Porosity Summer | Porous |
Foliage Porosity Summer | Porous |
Foliage Color | Green |
Foliage Color | Green |
Flower Conspicuous | Yes |
Flower Conspicuous | Yes |
Flower Color | Purple |
Flower Color | Purple |
Fire Resistant | No |
Fire Resistant | No |
Nitrogen Fixation | Low |
Fall Conspicuous | No |
Coppice Potential | No |
Coppice Potential | No |
C:N Ratio | Medium |
C:N Ratio | Medium |
Bloat | Low |
Bloat | Low |
After Harvest Regrowth Rate | Slow |
After Harvest Regrowth Rate | Slow |
Active Growth Period | Spring and Summer |
Resprout Ability | No |
Foliage Texture | Coarse |
Nitrogen Fixation | Low |
Low Growing Grass | No |
Low Growing Grass | No |
Lifespan | Moderate |
Lifespan | Moderate |
Leaf Retention | No |
Leaf Retention | No |
Known Allelopath | No |
Known Allelopath | No |
Height, Mature (feet) | 3.0 |
Growth Rate | Moderate |
Height, Mature (feet) | 3.0 |
Foliage Porosity Winter | Porous |
Foliage Texture | Coarse |
Fruit/Seed Color | Brown |
Fruit/Seed Color | Brown |
Fruit/Seed Conspicuous | No |
Fruit/Seed Conspicuous | No |
Growth Form | Multiple Stem |
Growth Form | Multiple Stem |
Growth Rate | Moderate |
Reproduction
Propagated by Cuttings | No |
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Propagated by Seed | Yes |
Propagated by Seed | Yes |
Propagated by Sod | No |
Propagated by Sod | No |
Propagated by Sprigs | No |
Propagated by Sprigs | No |
Propagated by Tubers | No |
Propagated by Tubers | No |
Fruit/Seed Persistence | No |
Seed per Pound | 301250 |
Seed per Pound | 317000 |
Seed Spread Rate | Slow |
Seed Spread Rate | Slow |
Seedling Vigor | Medium |
Seedling Vigor | Medium |
Small Grain | No |
Small Grain | No |
Vegetative Spread Rate | None |
Vegetative Spread Rate | None |
Propagated by Corm | No |
Propagated by Cuttings | No |
Bloom Period | Summer |
Bloom Period | Summer |
Commercial Availability | Routinely Available |
Commercial Availability | Routinely Available |
Fruit/Seed Abundance | Medium |
Fruit/Seed Abundance | Medium |
Fruit/Seed Period Begin | Spring |
Fruit/Seed Period Begin | Spring |
Fruit/Seed Period End | Summer |
Fruit/Seed Persistence | No |
Propagated by Bare Root | No |
Propagated by Bare Root | No |
Propagated by Bulb | No |
Propagated by Bulb | No |
Propagated by Container | No |
Propagated by Container | No |
Propagated by Corm | No |
Fruit/Seed Period End | Summer |
Suitability/Use
Palatable Browse Animal | Medium |
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Palatable Graze Animal | Medium |
Palatable Graze Animal | Medium |
Palatable Human | No |
Palatable Human | No |
Post Product | No |
Post Product | No |
Protein Potential | High |
Protein Potential | High |
Pulpwood Product | No |
Pulpwood Product | No |
Veneer Product | No |
Veneer Product | No |
Palatable Browse Animal | Medium |
Nursery Stock Product | No |
Nursery Stock Product | No |
Naval Store Product | No |
Naval Store Product | No |
Lumber Product | No |
Lumber Product | No |
Fodder Product | Yes |
Fodder Product | Yes |
Christmas Tree Product | No |
Christmas Tree Product | No |
Berry/Nut/Seed Product | No |
Berry/Nut/Seed Product | No |