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Wildflower Center Staff
Tridens flavus (L.) A.S. Hitchc.
Purpletop tridens, Redtop tridens, Tall redtop tridens, Purpletop, Redtop, Tall redtop
USDA Symbol: trfl2
USDA Native Status: Native to U.S.
Tall redtop or Purple-top is a 2 1/2-7 ft. tall perennial grass with drooping branches bearing widely spaced reddish-purple spikelets. In mass, this species puts a purple top on old fields and open woods. The plant becomes brown in fall.
Bloom InformationBloom Color: Purple
Bloom Time: Aug , Sep , Oct , Nov
AL , AR , CT , DC , DE , FL , GA , IA , IL , IN , KS , KY , LA , MA , MD , MI , MN , MO , MS , NC , NE , NH , NJ , NM , NY , OH , OK , PA , RI , SC , TN , TX , VA , VT , WI , WV Native Distribution:
S. NH to IL & NE, s. to Mex. Native Habitat:
Roadsides, Open woodlands USDA Native Status: L48(N), CAN(I)
Growing ConditionsWater Use: Low
Light Requirement: Part Shade
Soil Moisture: Dry
CaCO3 Tolerance: Low
Soil Description: Dry soils. Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay
Conditions Comments: During early growth it is readily consumed by livestock.
BenefitUse Ornamental: Attractive
Use Wildlife: Graze, Nesting material.
Larval Host: Cross-line skipper, Broad-winged skipper, Little Glassywing skipper, Large Wood Nymph.
Butterflies and Moths of North America (BAMONA)
is a larval host and/or nectar source for:
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Edge of the Woods Native Plant Nursery
- Orefield, PA
Recommended Species Lists
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Record Modified: 2012-12-09
Research By: LAL