Flora of the Southeastern United States
2022 Edition


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Tridens flavus (Linnaeus) A.S. Hitchcock. Redtop, Tall Redtop, Purpletop Tridens, Greasy Grass. Phen: Mar-Nov. Hab: Roadsides, disturbed areas, glades, barrens. Dist: NH west to NE, south to s. FL and TX.

Origin/Endemic status: Native

Syn: = HC, Il, NcTx, Pa, Tn, Va; = Tridens flavus var. flavus – Ar, C, ETx1, FlGr, FNA25, K1, K3, K4, Mo1, NE, RAB, Tx, WH3, Witsell & Baker (2013); = Triodia flava – F, G, WV; < Tridens flavus – W; < Triodia flava – S

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image of plant© Richard & Teresa Ware | Original Image ⭷