Erigeron concinnus

Erigeron concinnus
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Astereae
Genus:	Erigeron
Species:	E. concinnus
Binomial name
Erigeron concinnus (Hook. & Arn.) Torr. & A.Gray
Synonyms[1]
Synonymy Distasis concinna Hook. & Arn. Erigeron brandegeei A.Gray Erigeron concinnus var. eremicus Jeps. Erigeron pumilus subsp. concinnoides Cronquist Erigeron pumilus var. concinnoides Cronquist Erigeron pumilus var. concinnus (Hook. & Arn.) Dorn Erigeron setulosus Greene Erigeron simulans Greene Erigeron condensatus (D.C.Eaton) Greene, syn of var. condensatus Erigeron pumilus var. condensatus (D.C.Eaton) Cronquist, syn of var. condensatus Erigeron wyomingensis A.Nelson, syn of var. condensatus Erigeron perglaber S.F.Blake, syn of var. subglaber Erigeron pumilus var. subglaber Cronquist, syn of var. subglaber Erigeron zothecinus S.L.Welsh, syn of var. subglaber

Erigeron concinnus (Navajo fleabane or tidy fleabane) is a perennial flowering plant in the daisy family.^[2]

Erigeron concinnus is native to the dry mountains of the Mojave Desert around Death Valley in southeast California, north and east to Nevada, Idaho, Utah, Wyoming, Montana, Colorado, Arizona, and New Mexico;^[3] in the California portion of its range, it grows at elevations of 1200-1800 m. Some of the known populations lie inside Mojave National Preserve.^[4]

Erigeron concinnus grows in sandy to rocky soils, and can reach a height of 6-16 cm (2.4-6.4 inches). The leaves are 2-6 cm (0.8-2.4 inches) long, lanceolate to linear, broadest near the rounded apex. The flower heads are sometimes produced one per branch, sometimes in groups of up to 6, each head 7-11 mm (0.28-0.44 inches) in diameter, with 50-125 white, pink, or blue ray florets and yellow disk florets.^[5][6]

Varieties^[1][5]

• Erigeron concinnus var. concinnus - Arizona, California, Colorado, Idaho, Nevada, New Mexico, Utah, Wyoming
• Erigeron concinnus var. condensatus D.C.Eaton - New Mexico, Utah, Wyoming
• Erigeron concinnus var. subglaber (Cronquist) G.L.Nesom - Arizona, Colorado, Utah

References

1. The Plant List, Erigeron concinnus (Hook. & Arn.) Torr. & A. Gray
2. Nesom, G. L. 1983b. Taxonomy of Erigeron concinnus (Asteraceae) and its separation from E. pumilus. Sida 10: 159–166.
3. Biota of North America Program 2014 county distribution map
4. Calflora taxon report, University of California, Erigeron concinnus (Hook. & Arn.) Torrey & A. Gray Navajo fleabane
5. Flora of North America: Erigeron concinnus
6. Mojave Desert Wildflowers, Jon Mark Stewart, 1998, pg. 166

External links

• Jepson Flora Project: Erigeron concinnus
• photo of herbarium specimen at Missouri Botanical Garden, collected in Nevada in 1937, isotype of Erigeron pumilus subsp. concinnoides Cronquist (syn of Erigeron concinnus)