Crepis atribarba

(Slender Hawk’s-beard)

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Crepis atribarba, Lower Cataract Lake, Summit Co. 1515

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Crepis atribarba, Lower Cataract Lake, Summit Co. 1517

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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
Reference
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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:
Native

© Tom Lebsack 2024

Banner photo: Castilleja rhexifolia and a brewing storm over the San Juan Mountains