Erigeron filifolius

Erigeron filifolius is a North American species of flowering plants in the daisy family known by the common names thread-leaf fleabane.[4]

Erigeron filifolius
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Astereae
Genus:
Erigeron
Species:
E. filifolius
Binomial name
Erigeron filifolius
Synonyms[1]
  • Erigeron filifolium (Hook.) Nutt.[2][3]
  • Chrysopsis canescens DC.
  • Diplopappus filifolius Hook.
  • Diplostephium filifolium (Vent.) Nees
  • Diplostephium teretifolium (Less.) Nees

Erigeron filifolius is widespread across much of western North America. It has been found in western Canada (British Columbia) and the western United States, primarily east of the crest of the Cascade Range of Washington, Oregon, and northern California extending eastward to southern Idaho and northeast Nevada. Within its distribution, it occupies a large range of elevations from near sea level to 2,400 m (8,000 ft).[5][6][7][8]

Erigeron filifolius is a branched perennial herb up to 50 cm (20 in) in height. Leaves are long and thin, often thread-like, up to 8 cm (3 in) long. Each stem sometimes produces only 1 flower head per stem, sometimes flat-topped clusters of 10 or more. Each head may contain as many as 125 white, blue, pink, or lavender ray florets surrounding numerous yellow disc florets.[4][9][10][11]

References
  1. The Plant List, Erigeron filifolius (Hook.) Nutt.
  2. Tropicos, Erigeron filifolius (Hook.) Nutt.
  3. Nuttall, Thomas 1840. Transactions of the American Philosophical Society, new series 7: 308 as Erigeron filifolium
  4. Flora of North America, Erigeron filifolius (Hooker) Nuttall, Thread-leaf fleabane
  5. Biota of North America Program 2014 county distribution map
  6. Calflora taxon report, University of California, Erigeron filifolius (Hook.) Nutt., threadleaf fleabane
  7. Sullivan, Steven. K. (2020). "Erigeron filifolius". Wildflower Search. Retrieved 2020-09-22.
  8. USDA, NRCS. (2020). "Erigeron filifolius". The PLANTS Database. National Plant Data Team, Greensboro, NC 27401-4901 USA. Retrieved 2020-09-22.
  9. Klinkenberg, Brian (Editor) (2020). "Erigeron filifolius". E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. Retrieved 2020-09-22.CS1 maint: extra text: authors list (link)
  10. Giblin, David (Editor) (2020). "Erigeron filifolius". WTU Herbarium Image Collection. Burke Museum, University of Washington. Retrieved 2020-09-22.CS1 maint: extra text: authors list (link)
  11. "Erigeron filifolius". in Jepson Flora Project (eds.) Jepson eFlora. Jepson Herbarium; University of California, Berkeley. 2020. Retrieved 2020-09-22.
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