Erigeron speciosus
| Erigeron speciosus | |
|---|---|
| |
| Main Botanical Garden, Academy of Sciences, Moscow, Russia | |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Erigeron |
| Species: | E. speciosus
|
| Binomial name | |
| Erigeron speciosus | |
| Synonyms[1] | |
|
Synonymy
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Erigeron speciosus is a widespread North American species of flowering plants in the family Asteraceae known by the common names aspen fleabane,[2] garden fleabane,[3] and showy fleabane.[4]
Description
[edit]E. speciosus is a perennial herb up which grows up to 100 centimetres (39 inches) tall, producing underground rhizomes and a woody caudex. The inflorescence generally contains 2–20 flower heads per stem. Each head contains 75–150 white, lavender or blue ray florets surrounding many yellow disc florets.[4][5] Flowers bloom from June to October.[4][6]
The species is similar to E. subtrinervis, the stems and leaves of which are hairy.[6]
Etymology
[edit]The specific epithet speciosus means 'pretty'.[6]
Distribution and habitat
[edit]The species has been found in western Canada and the United States, from Alberta and British Columbia south as far as Arizona and New Mexico,[6][7] with some isolated populations in the Mexican state of Baja California. It grows in open coniferous forests.[6]
References
[edit]- ^ The Plant List, Erigeron speciosus (Lindl.) DC.
- ^ NRCS. "Erigeron speciosus". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 30 June 2015.
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- ^ a b c Flora of North America, Erigeron speciosus. Showy fleabane
- ^ Eastwood, Alice 1896. Proceedings of the California Academy of Sciences, Series 2, 6: 297
- ^ a b c d e Spellenberg, Richard (2001) [1979]. National Audubon Society Field Guide to North American Wildflowers: Western Region (rev ed.). Knopf. p. 373. ISBN 978-0-375-40233-3.
- ^ Biota of North America Program 2014 county distribution map
External links
[edit]- Photo of herbarium specimen at Missouri Botanical Garden, collected in Colorado in 1899 — isotype of Erigeron salicinus, syn of E. speciosus
- Turner Photographics, Wildflowers of the Pacific Northwest, Erigeron speciosus, (Showy Fleabane) — photos, description, partial distribution map