Crocanthemum bicknellii (Fernald) Janch.
Family: Cistaceae
Bicknell's rock-rose, hoary frostweed, rock-rose
[Helianthemum bicknellii Fernald]
Crocanthemum bicknellii image
Marcie O'Connor  
Crocanthemum bicknellii image
Merel R. Black  
Crocanthemum bicknellii image
University of Wisconsin - Madison (WIS-VP)  
Etymology: Helianthemum: from the Greek helios, "sun," and anthemon, "flower," because the flowers open only in the sun
Plants: erect, perennial, 8"-24" tall forb; stems clustered, branching when mature, the branches not becoming taller than the main stem
Leaves: wedge or triangular-shaped
Flowers: yellow, 5-parted, 2/3"-1" wide; inflorescence of 2-10 stalked flowers in a branched cluster (cyme) at the top of the stem; blooms June-July usually 2-3 weeks later than H. canadense
Habitat: dry; prairies, woods, inland sands; in sandy soil
Conservation Status: Native
Crocanthemum bicknellii image
Merel R. Black  
Crocanthemum bicknellii image
Merel R. Black  
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Aaron_Carlson  
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image
Crocanthemum bicknellii image