Erigeron speciosus

(Showy Daisy)

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Erigeron speciosus, along Rist Canyon Rd., Larimer Co. 2116

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Erigeron speciosus, along Rist Canyon Rd., Larimer Co. 2114

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Erigeron speciosus, Breckenridge, Summit Co. 1028

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Erigeron speciosus, Lower Cataract Lake, Summit Co. 4632

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Erigeron speciosus, Lower Cataract Lake, Summit Co. 4637

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Erigeron speciosus, Lower Cataract Lake, Summit Co. 4647

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Erigeron speciosus, along Rist Canyon Rd., Larimer Co. 2130

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Erigeron speciosus, along Rist Canyon Rd., Larimer Co. 2123

Scientific Name Erigeron speciosus USDA PLANTS Symbol ERSP4
Common Name Showy Daisy, Aspen Fleabane ITIS Taxonomic Serial No. 35950
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Fooothills to subalpine (5500 to 12000 ft.); open areas, meadows.
Plant: Perennial up to 32 inches tall with shiny, slightly hairy stems.
Leaves: Basal leaves withered by blooming; stem leaves lanceolate, 1-1/4 to 3-1/4 inches long and up to 3/4-inch wide; without stalks, upper are clasping; slightly hairy faces and hairy edges.
Inflorescence: Corymbiform arrays of 4 to 20 composite flower heads up to 1-3/4 inch across each with many (75 to 150) blue to lavender rays becoming slighty curved at the tips; many yellow disk florets; phyllaries below unequal, usually smooth, sometimes minutely glandular.
Bloom Period: June to September.
Reference: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildlowers" by G.K. Guennel and SEINet.
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