Family: Onagraceae
yellow evening-primrose, yellow sundrops
[Calylophus australis Towner & P.H.Raven, more...]
Emmet J. Judziewicz
Emmet J. Judziewicz
Etymology: Calylophus: Caly Greek for calyx; lophos for "the back of the neck; crest of a hill or helmet"
Plants: erect, perennial, to 24" tall forb; stems usually clustered, often woody at the base
Leaves: many, narrowly oblong, often toothed
Flowers: yellow, 4-parted, 1/3"-1" wide, stalkless, sepals with sharply raised midrib, 8 stamens, stigma shield-shaped; solitary from the upper leaf axil; blooms June-July
Habitat: dry; prairies, plains, bluffs
Conservation Status: Special Concern
Plants: erect, perennial, to 24" tall forb; stems usually clustered, often woody at the base
Leaves: many, narrowly oblong, often toothed
Flowers: yellow, 4-parted, 1/3"-1" wide, stalkless, sepals with sharply raised midrib, 8 stamens, stigma shield-shaped; solitary from the upper leaf axil; blooms June-July
Habitat: dry; prairies, plains, bluffs
Conservation Status: Special Concern
Floristic Rating: Coefficient of Conservatism = 8 WIS DNR-Bureau of Endangered Resources: Detailed information on Wisconsin listed species including state and federal status, photos, etc. USDA Plants Database: Federal Distribution and detailed information including photos
Emmet J. Judziewicz
Emmet J. Judziewicz
Emmet J. Judziewicz
Aaron Carlson
Emmet J. Judziewicz
© Wisconsin State Herbarium, UW-Madison
Department of Botany • 430 Lincoln Drive
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Madison, WI 53706 • Phone: 608-262-2792
Direct comments to wisconsin.state.herbarium@gmail.com
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