Erigeron subtrinervis, called the three-nerved daisy,[3] the three-nerve fleabane,[4] or the hairy showy daisy,[4] is a North American species of flowering plants in the family Asteraceae. It grows in various mountains of western Canada and the western United States: Rocky Mountains, northern Cascades, Black Hills, etc., from British Columbia and Washington state east to North Dakota and south as far as New Mexico.[5][3]
| Erigeron subtrinervis | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Erigeron |
| Species: | E. subtrinervis
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| Binomial name | |
| Erigeron subtrinervis | |
| Synonyms[2] | |
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Erigeron subtrinervis grows in openings and along roadsides in aspen groves and conifer forests, as well as on ridges and mountain peaks at high elevations. It is a perennial herb up to 90 cm (3 feet) tall, producing underground rhizomes and a woody caudex. The inflorescence generally contains 1-21 flower heads per stem, in a flat-topped array. Each head contains 100–150 purple or lavender ray florets surrounding many yellow disc florets.[6]
References
edit- ^ Tropicos, Erigeron glabellus var. mollis A. Gray
- ^ The Plant List, Erigeron subtrinervis Rydb. ex Porter & Britton
- ^ a b Turner Photographics, Wildflowers of the Pacific Northwest, Erigeron subtrinervis, Three-Nerved Daisy photos, description, distribution map for Oregon, Washington, and southern British Columbia
- ^ a b Lady Bird Johnson Wildflower Center, University of Texas, Erigeron subtrinervis Rydb. ex Porter & Britton Three-nerve fleabane, Hairy showy daisy
- ^ Biota of North America Program 2014 county distribution map
- ^ Flora of North America, Erigeron subtrinervis Rydberg ex Porter & Britton, 1894.
External links
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