Dendrolycopodium obscurum (Linnaeus) A. Haines. Common Groundpine, Flat-branched Tree-clubmoss. Phen: Jul-Sep. Hab: Acidic forests. Dist: NS and NB west to MI and WI, south to n. GA, ne. AL, s. IN, n. IL (?), and c. MN; China, Japan, Korea, e. Russia.
Origin/Endemic status: Native
Syn: = K3, K4, NE, NY, Tn, Va, Haines (2003a), Petlewski (2020); = Lycopodium obscurum – FNA2, K1, Pa; = Lycopodium obscurum var. obscurum – F, G, Md, RAB, W, WV; < Lycopodium obscurum – C, Sf
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© William S. Justice
© Keith Bradley
© Jim Fowler