Crepis atribarba

(Slender Hawk’s-beard)


Crepis atribarba, Lower Cataract Lake, Summit Co. 1515


Crepis atribarba, Lower Cataract Lake, Summit Co. 1517


Crepis atribarba, Lower Cataract Lake, Summit Co. 1538

Scientific Name Crepis atribarba USDA PLANTS Symbol CRAT
Common Name Slender Hawk's-beard ITIS Taxonomic Serial No. 37172
Family Asteraceae (Sunflower) SEINet
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Description Life zones and habitat: Foothills and montane (5500 to 10000 ft). Dry soils in open, grassy areas, sagebrush slopes and pine forests.
Plant: Erect perennial 6 to 28 inches tall, with 1 or 2 slender, usually branched stems.
Leaves: Basal and stem leaves lanceolate to linear blades with deep linear, usually entire, lobes; overall 4 to 14 inches long and 1/4 to 2-3/8 inches wide. Upper leaves becoming linear and entire.
Inflorescence: Corymb of 3 to 30 composite flower heads, each with 6 to 35 yellow rays 3/8 to almost 3/4-inch long; cylindrical-to-bell shaped involucre 3/10 to 6/10 inches long with greenish, lance-shaped phyllaries with yellow edges and short, fine hairs, often with dark bristles.
Bloom Period: May to July.
References: "Flora of Colorado" by Jennifer Ackerfield, SEINet and the Burke Herbarium.
BONAP Distribution Map

Map Color Key
Colorado Status:

© Tom Lebsack 2024

Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County