Erigeron speciosus

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Erigeron speciosus
Erigeron speciosus 01.jpg
Main Botanical Garden, Academy of Sciences, Moscow, Russia
Status TNC G5.svg
Secure  (NatureServe)
Scientific classification OOjs UI icon edit-ltr.svg
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
  • Erigeron conspicuusRydb.
  • Erigeron eucephaloidesGreene
  • Erigeron grandiflorusNutt. October 1834 not Hook. September 1834
  • Erigeron leiophyllusGreene
  • Erigeron leucotrichusRydb.
  • Erigeron macranthusNutt.
  • Erigeron salicinusRydb.
  • Erigeron villosulusGreene
  • Stenactis speciosaLindl.

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]

Contents

Description

E. speciosus is a perennial herb 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

The specific epithet speciosus means 'pretty'. [6]

Distribution and habitat

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

  1. ↑ The Plant List, Erigeron speciosus (Lindl.) DC.
  2. ↑ NRCS. "Erigeron speciosus". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 30 June 2015.
  3. ↑ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  4. 1 2 3 Flora of North America, Erigeron speciosus. Showy fleabane
  5. ↑ Eastwood, Alice 1896. Proceedings of the California Academy of Sciences, Series 2, 6: 297
  6. 1 2 3 4 5 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.
  7. ↑ Biota of North America Program 2014 county distribution map


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