Triosteum aurantiacum E.P. Bicknell var. aurantiacum . Common name: Orange-fruited Horse-gentian. Phenology: Late May-early Jun; Aug-Oct. Habitat: Woodlands and forests in circumneutral soils, particularly those over mafic or calcareous rocks. Distribution: QC west to MN, south to GA, KY, and OK; other varieties are more restricted and midwestern or northern in distribution.
Origin/Endemic status: Native
Synonymy ⓘ: = C, F, NE, Va; < Triosteum aurantiacum E.P.Bicknell — Il, Mi, NY, Pa, RAB, S, Tat, Tn, W, WV, Ferguson (1966a); < Triosteum aurantiacum E.P.Bicknell var. aurantiacum — K4; < Triosteum perfoliatum L. var. aurantiacum (E.P.Bicknell) Wiegand — G, GrPl. Basionym: Triosteum aurantiacum E.P.Bicknell 1901
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Heliophily ⓘ: 6
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