*Galeopsis ladanum Linnaeus var. ladanum. Common name: Red Hemp-nettle. Phenology: Jun-Sep. Habitat: Disturbed areas. Distribution: Native of Eurasia. Adventive in ne. North America, south at least to se. PA (Rhoads & Klein 1993) and s. NJ.
Origin/Endemic status: Eurasia
Synonymy ⓘ: < Galeopsis ladanum L. — K4, Mi, NE, NY, Stace (2021); > Galeopsis ladanum L. var. angustifolia (Ehrh. ex Hoffm.) Wallr. — C, G, misapplied; > Galeopsis ladanum L. var. ladanum — F; > Galeopsis ladanum L. var. latifolia (Hoffm.) Wallr. — F. Basionym: Galeopsis ladanum L. 1753
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