Encelia virginensis

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Campanulids
Ordo: Asterales

Familia: Asteraceae
Subfamilia: Asteroideae
Tribus: Heliantheae
Subtribus: Enceliinae
Genus: Encelia
Species: Encelia virginensis
Name

Encelia virginensis A.Nelson,
Synonyms

Encelia frutescens f. virginensis (A. Nels.) H.M.Hall
Encelia frutescens var. virginiensis (A. Nels.) S.F.Blake

Distribution
Native distribution areas:

Continental: Northern America
Regional: Southwestern USA
USA (Arizona, California, Nevada, New Mexico, Utah)

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References

A.Nelson, Botanical Gazette; Paper of Botanical Notes. Crawfordsville, IN, Chicago, IL 37:272. 1904

Links

International Plant Names Index. 2018. Encelia virginensis. Published online. Accessed: Feb. 03 2018.
The Plant List 2013. Encelia virginensis in The Plant List Version 1.1. Published on the internet. Accessed: 2018 Feb. 03.
Tropicos.org 2018. Encelia virginensis. Missouri Botanical Garden. Published on the internet. Accessed: 2018 Feb. 03.
Hassler, M. 2018. Encelia virginensis. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2018. Species 2000 & ITIS Catalogue of Life. Published on the internet. Accessed: 2018 Feb. 03. Reference page.
USDA, ARS, Germplasm Resources Information Network. Encelia virginensis in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 08-Apr-12.

Vernacular names
English: Virgin River brittlebush

Encelia virginensis is a North American species of flowering plants in the daisy family known by the common name Virgin River brittlebush. This shrub is native to the southwestern United States and northwestern Mexico, particularly the Mojave Desert and the Sonoran Desert. It has been found in Baja California, southern California, Nevada, Arizona, southwestern Utah, and southwestern New Mexico.[2]

Encelia virginensis is a bushy, sprawling shrub reaching heights between 100 and 150 cm (40-60 inches). It has many branches, with the younger parts hairy and the older stems developing a thickened bark. The gray-green, fuzzy to hairy foliage may be sparse, appearing pale because of the presence of many small hairs on the surface. Atop many erect, hairy stems are solitary daisy-like flower heads with 11 to 21 ray florets which are generally yellow, and a center of yellow disc florets. The fruit is an achene 5 to 8 millimeters long and usually lacking a pappus.[3][4]

Varieties

Encelia virginensis var. actonii (Elmer) B.L.Turner - California, Nevada, Baja California[5][6][7]
Encelia virginensis var. virginensis - southern California, Nevada, Arizona, southwestern Utah, and southwestern New Mexico[2][8]

References

The Plant List Encelia actoni Elmer
Biota of North America Program 2014 county distribution map, Encelia virginensis
Flora of North America, Encelia virginensis A. Nelson
Nelson, Aven 1904. Botanical Gazette 37(4): 272–273
Biota of North America Program 2014 county distribution map, Encelia actoni
Calflora taxon report, University of California, Encelia actoni Elmer, Acton brittlebush
Flora of North America, Encelia actoni Elmer
Calflora taxon report, University of California, Encelia virginensis Nelson, Virgin River brittlebush