Jesuit's Bark

Scientific Name: Iva frutescens L.

Classification: Plantae/ Tracheobionta / Spermatophyta / Magnoliophyta / Magnoliopsida / Asteridae / Asterales / Asteraceae / Compositae / Iva L./ Iva frutescens L.

Jesuit's Bark
General Information
Usda SymbolIVFR
GroupDicot
Life CyclePerennial
Growth HabitsForb/herbSubshrub,
Native LocationsIVFR

Plant Guide

Use a soil moisture meter to monitor the soil moisture where Jesuit's Bark is planted.

Fact Sheet

Alternate Names

High-tide bush

Uses

The marsh elder is normally associated with the mid to high marsh ecosystem, forming the last line of defense for shoreline erosion control. More recently this species has become associated with the lower marsh system by colonizing the dredged material resulting from construction of ditches and ponds for mosquito control. Habitat: During extreme high tides, both small mammals and birds have been reported to use emergent vegetation as island of refuge. The marsh elder would readily serve this purpose. Marsh elder also provides suitable nesting habitats for various species of birds, like the red-winged blackbird and the marsh wren.

Status

Please consult the PLANTS Web site 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).

Description

Marsh elder is a perennial, deciduous shrub commonly growing between 3-8 feet high, The succulent leaves are egg-shaped to narrowly lance-shaped and oppositely arranged except for the upper reduced leaves, Use soil moisture sensors to measure the soil moisture of Jesuit's Bark., The lower leaves grow 4-6 inches long and 1-2 inches wide, Many greenish-white flower heads are arranged on terminal stems subtended by tiny green, leaf-like appendages, It is often confused with groundsel (Baccharis halimifolia) which exhibits succulent, coarsely-toothed leaves alternately arranged on the stem,

Adaptation and Distribution

Distribution

Distribution

The marsh elder naturally grows in the mid to high salt marsh-estuarine area, back dunes, and on muddy sea shores from Massachusetts to Florida and Texas. Here it commonly occurs with groundsel tree to form the salt bush community. These plants usually only occur at elevations where their roots are not subject to prolonged water table flooding, such as the upland border of salt marshes. However, there are occasional exceptions where these associated plants are found at lower elevations associated with drainage ditches and canals. Robert H. Mohlenbrock USDA NRCS 1991 Southern Wetland Flora @USDA NRCS PLANTS For a current distribution map, please consult the Plant Profile page for this species on the PLANTS Website.

Establishment

Marsh elder is generally established as 1 to 2 year old containerized plants, however 1 year bare root seedlings have been transplanted successfully in the spring. Since this plant has the ability to root from a dormant, unrooted cutting it may have application in soil bioengineering systems for tidal shoreline stabilization.

Management

No specific management recommended.

Pests and Potential Problems

None.

Plant Traits

Growth Requirements

Temperature, Minimum (°F)2
Adapted to Coarse Textured SoilsYes
Adapted to Fine Textured SoilsYes
Adapted to Medium Textured SoilsYes
Anaerobic ToleranceHigh
CaCO3 ToleranceMedium
Cold Stratification RequiredNo
Drought ToleranceLow
Fertility RequirementLow
Fire ToleranceMedium
Frost Free Days, Minimum200
Hedge ToleranceMedium
Moisture UseHigh
pH, Maximum5.7
pH, Minimum5.0
Planting Density per Acre, Maxim2700
Planting Density per Acre, Minim1200
Precipitation, Maximum65
Precipitation, Minimum35
Root Depth, Minimum (inches)16
Salinity ToleranceHigh
Shade ToleranceIntolerant


Morphology/Physiology

BloatNone
ToxicityNone
Resprout AbilityYes
Shape and OrientationVase
Active Growth PeriodSpring and Summer
C:N RatioHigh
Coppice PotentialNo
Fall ConspicuousNo
Fire ResistantNo
Flower ColorWhite
Flower ConspicuousYes
Foliage ColorGreen
Foliage Porosity SummerDense
Foliage Porosity WinterModerate
Foliage TextureCoarse
Fruit/Seed ConspicuousNo
Nitrogen FixationNone
Low Growing GrassNo
LifespanLong
Leaf RetentionNo
Known AllelopathNo
Height, Mature (feet)9.0
Height at 20 Years, Maximum (fee9
Growth RateModerate
Growth FormMultiple Stem
Fruit/Seed ColorWhite


Reproduction

Vegetative Spread RateNone
Small GrainNo
Seedling VigorLow
Seed Spread RateModerate
Fruit/Seed Period EndFall
Seed per Pound800000
Propagated by TubersNo
Propagated by SprigsNo
Propagated by SodNo
Propagated by SeedYes
Propagated by CormNo
Propagated by ContainerYes
Propagated by BulbNo
Propagated by Bare RootYes
Fruit/Seed PersistenceYes
Fruit/Seed Period BeginSummer
Fruit/Seed AbundanceHigh
Commercial AvailabilityRoutinely Available
Bloom PeriodLate Summer
Propagated by CuttingsNo


Suitability/Use

Veneer ProductNo
Pulpwood ProductNo
Protein PotentialLow
Post ProductNo
Palatable HumanNo
Palatable Graze AnimalLow
Palatable Browse AnimalLow
Nursery Stock ProductYes
Naval Store ProductNo
Lumber ProductNo
Fodder ProductNo
Christmas Tree ProductNo
Berry/Nut/Seed ProductNo

Jesuit's Bark

Jesuit's Bark

Jesuit's Bark

Jesuit's Bark

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