Thaspium trifoliatum (Linnaeus) A. Gray var. aureum (Linnaeus) Britton. Phen: Apr-May; Jul-Aug. Hab: Moist forests. Dist: NY west to MN, south to SC, AL, AR, and se. KS.
Origin/Endemic status: Native
Syn: = Ar, K1, K3, K4, S, Coulter & Rose (1900); = Thaspium trifoliatum var. flavum – C, F, GrPl, Il, MC, Mo2, Pa, RAB, Tn, W, WV, Cooperrider (1985); < Thaspium trifoliatum – G, Mi, Va, Floden (2019)
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