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; Eastw.
Synonyms
	Synonymy Erigeron conspicuus Rydb. ; Erigeron eucephaloides Greene ; Erigeron grandiflorus Nutt. October 1834 not Hook. September 1834 ; Erigeron leiophyllus Greene ; Erigeron leucotrichus Rydb. ; Erigeron macranthus Nutt. ; Erigeron salicinus Rydb. ; Erigeron villosulus Greene ; Stenactis speciosa Lindl. ;

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

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

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

^ The Plant List, Erigeron speciosus (Lindl.) DC.
^ USDA, NRCS (n.d.). "Erigeron speciosus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. 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

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 mapError: "Q5835771" is not a valid Wikidata entity ID.

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[1] The Plant List, Erigeron speciosus (Lindl.) DC.

[2] USDA, NRCS (n.d.). "Erigeron speciosus". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 30 June 2015.

[BSBI07-3] BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.

[kathy-4] Flora of North America, Erigeron speciosus. Showy fleabane

[5] Eastwood, Alice 1896. Proceedings of the California Academy of Sciences, Series 2, 6: 297

[:0-6] 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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