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Tripsacum dactyloides (L.) L.
Poaceae (Grass Family)
Synonym(s): Coix dactyloides, Tripsacum dactyloides var. occidentale
USDA Symbol: TRDA3
USDA Native Status: L48 (N)
Usually 2-3 ft. in height, eastern mock grama can grow 10 ft. tall. It is interesting primarily for its terminal inflorescences which have separate male and female flowers. Stigmas are purple; stamens orange. The plant is a perennial.
Deer eat the hard, yellow seeds of this plant.
Bloom InformationBloom Color: Brown
Bloom Time: Apr , May , Jun
, WV Native Distribution: MA
s. to FL, OK
& TX Native Habitat:
Borders of salt marshes; stream banks; mesic, upland, tallgrass prairies, Frequent in scattered parts of the state, more common in the eastern half, rare in Plains Country
Growing ConditionsWater Use:
High Light Requirement:
Part Shade Soil Moisture:
Moist CaCO3 Tolerance:
None Soil Description:
Moist soils. Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Calcareous, Acid-based Conditions Comments:
Eastern gamagrass is related to corn, and deer gobble up its seeds. This grass grows large and stately; it is a good idea to allocate plenty of room to it. Cut it back in winter, but carefully, the leaf blade
edges are sharp!
BenefitUse Ornamental: Accent, Grows in clumps, Border, Ground cover, Can be mowed
Use Wildlife: Deer eat the hard, yellow seeds. Seeds-granivorous birds, Cover, Nesting site, Graze.
Conspicuous Flowers: yes
Interesting Foliage: yes
Larval Host: Bunchgrass Skipper
Deer Resistant: Moderate
Butterflies and Moths of North America (BAMONA)
is a larval host and/or nectar source for:
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
Record Last Modified: 2013-10-25
Research By: TWC Staff, GAP