Dig deeper at SERNEC, a consortium of southeastern herbaria.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Dipsacales
Perfoliate Horse-gentian, Perfoliate Tinker's-weed, Wild Coffee, Feverwort
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Richard and Teresa Ware rtw_triosteum_perfoliatum
Herbage soft gray-hairy. Flowers purplish-red or greenish-yellow, per Wildflowers of the Southern Mountains.
Richard and Teresa Ware rtw_t_perfoliatum_horseg2
Leaves primarily connate-perfoliate, the joined base 3-9cm wide, per Weakley's Flora.