Erigeron pinnatisectus

(Featherleaf Fleabane)

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Erigeron pinnatisectus, Indian Peaks Wilderness, Boulder Co. 6263

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Erigeron pinnatisectus, Mayflower Gulch, Summit Co. 4684

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Erigeron pinnatisectus, Mayflower Gulch, Summit Co. 4669

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Erigeron pinnatisectus, Crystal Lakes, Summit Co. 1162

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Erigeron pinnatisectus, Mayflower Gulch, Summit Co. 4685

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Erigeron pinnatisectus, Black Powder Pass, Summit Co. 05075

Scientific Name Erigeron pinnatisectus USDA PLANTS Symbol ERLE6
Common Name Featherleaf Fleabane ITIS Taxonomic Serial No. 35926
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Montane to alpine (8900 to 13500 ft.); meadows and boulder fields, rocky tundra.
Plant: Short perennial up to 4 inches tall with erect stout, curved stems.
Leaves: Basal, stalked leaves up to 2 inches long, pinnately-dissected into finger-like, somewhat hairy and minutey glandular lobes; stem leaves mostly linear, becoming much smaller or absent upward, margins entire, usually coarsely ciliate.
Inflorescence: Composite flower head about 1 inch across, one per stem, each with 40 to 70 light blue, sometimes slightly purplish rays; yellow disk florets; minutely glandular, somewhat hairy phyllaries below.
Bloom Period: Late June through August.
References: "Flora of Colorado" by Jennifer Ackerfield, "Guide to Colorado Wildflowers" by G.K. Guennel and Flora of North America.
BONAP Distribution Map

Colorado Status:
Native

© Tom Lebsack 2022

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