Erigeron filifolius explained

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

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 8000feet.^{[1] [2] [3] [4]}

Erigeron filifolius is a branched perennial herb up to 50cm (20inches) in height. Leaves are long and thin, often thread-like, up to 8cm (03inches) 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.^{[5] [6] [7] [8]}

Notes and References

1. http://bonap.net/MapGallery/County/Erigeron%20filifolius.png Biota of North America Program 2014 county distribution map
2. http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=9919 Calflora taxon report, University of California, Erigeron filifolius (Hook.) Nutt., threadleaf fleabane
3. Web site: Erigeron filifolius . Sullivan . Steven. K. . 2020 . Wildflower Search . 2020-09-22 .
4. Web site: Erigeron filifolius . 2020 . USDA, NRCS. . The PLANTS Database . National Plant Data Team, Greensboro, NC 27401-4901 USA. . 2020-09-22.
5. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066594 Flora of North America, Erigeron filifolius (Hooker) Nuttall, Thread-leaf fleabane
6. Web site: Erigeron filifolius . Klinkenberg . Brian . 2020 . 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 . 2020-09-22.
7. Web site: Erigeron filifolius . Giblin . David . 2020 . WTU Herbarium Image Collection . Burke Museum, University of Washington . 2020-09-22.
8. Web site: Erigeron filifolius . 2020 . in Jepson Flora Project (eds.) Jepson eFlora . Jepson Herbarium; University of California, Berkeley . 2020-09-22.