RANUNCULACEAE

Clematis occidentalis (Hornemann) A.P. de Candolle var. occidentalis . Subgenus: Atragene. Purple Clematis, Mountain Clematis. Phen: May-Jun. Hab: Rocky slopes over mafic rocks (greenstone, amphibolite), known positively in NC only from amphibolite peaks in Ashe County. Dist: Var. occidentalis is widespread in ne. North America, from NB west to w. ON, south to NJ, DE, OH, nw. IL, and ne. IA, and in the mountains to w. VA and w. NC.

Origin/Endemic status: Native

Syn: = FNA3, K1, K3, K4, NY, Pa, Va; = Clematis occidentalis (Hornem.) DC. ssp. occidentalis – NE; < Atragene americana Sims – S; < Clematis occidentalis (Hornem.) DC. – C, Il, Mi, W; < Clematis verticillaris DC. – G, RAB; > Clematis verticillaris DC. var. cacuminis Fernald – F; > Clematis verticillaris DC. var. verticillaris – F

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