Rhodiola rosea Linnaeus. Roseroot, Goldenroot, King's Crown. Phen: Jul-Aug; Aug-Sep. Hab: High elevation rocky summits, northwards on cliffs at lower elevations. Dist: Circumboreal, widely distributed in northern Europe, Asia, and North America, south in e. North America to e. PA and thence disjunct to Roan Mountain (Mitchell County, NC) and Grandfather Mountain (Avery County, NC), where nearly (if not completely) extirpated.
ID notes: Dwarfed, high elevation forms of Hylotelephium telephioides, with narrow, nearly toothless leaves, have been confused with Rhodiola rosea; they are perhaps readily distinguished only in flower or fruit.
Origin/Endemic status: Native
Syn: = FNA8, K1, K3, K4, NE, NY; = Sedum rosea – Pa, Clausen (1975); = Sedum rosea var. rosea – C; > Rhodiola roanensis – S; < Sedum rosea – G, RAB, W; < Sedum rosea var. rosea – F