Crocanthemum bicknellii (Fernald) Janchen. Hoary Frostweed, Plains Frostweed, Plains Sunrose, Bicknell's Hoary Rockrose. Phen: Jun-Jul (chasm.), Jul-Sep (cleist.); Aug-Oct. Hab: Woodlands, glades, barrens, rock outcrops, grassy balds, serpentine grasslands, to at least 1500m in elevation. Dist: ME and s. ON west to MN and s. MB, south to ne. GA, e. TN, AR, KS, and CO.
Origin/Endemic status: Native
Synonymy ⓘ: = Ar, FNA6, K3, K4, Mi, NE, NY, S, Va; = Helianthemum bicknellii Fernald – C, F, G, GrPl, Il, K1, Pa, RAB, Tat, Tn, W, Daoud & Wilbur (1965), Wilbur & Daoud (1964)
Links to other floras: = Crocanthemum bicknellii - FNA6
Heliophily ⓘ: 7
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