Nevada Fish & Wildlife Office
Pacific Southwest Region

Ash Meadows sunray
(Enceliopsis nudicaulis var. corrugata)

Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Enceliopsis
Species: nudicaulis
Variety: corrugata
Habitat: These species are restricted to the Ash Meadows region and ground water basin in Nye County, Nevada, and Inyo County, California.

Official Status:


Life History:

A species of flowering plant in the daisy family known by the common name nakedstem sunray, or naked-stemmed daisy. It is native to the southwestern United States, where it grows in desert and plateau habitat. This is a perennial herb growing up to 40 centimeters tall from a woody caudex fringed with gray-green hairy leaves. The leaves are oval in shape and up to 6 centimeters long and wide. The inflorescence is a solitary flower head atop a tall, erect peduncle. The flower head has a base made up of three layers of densely woolly, pointed phyllaries. It has a fringe of approximately 21 yellow ray florets each 2 to 4 centimeters long. The fruit is a hairy achene about a centimeter in length.


Distribution and Habitat:


There are two varieties of this species, the rarer of which, var. corrugata, is probably endemic to Nevada in the vicinity of Ash Meadows and is federally listed as a threatened species




The loss of habitat by recent agricultural and municipal development activities, the clearing of land for road construction,the removal of ground water and diversion of surface spring flow, and local mining activities threaten the integrity of the species' habitat and,therefore, their survival.


Actions / Current Information:


Date Citation Page Title
05/21/2010 75 FR 28636 28642 Initiation of 5-Year Reviews of 34 Species in California and Nevada; Availability of 96 Completed 5-Year Reviews in California and Nevada
05/20/1985 50 FR 20777 20794 Determination of Thr. Status w/ Crit. Hab for 6 Plants & 1 Insect in Ash Meadows, NV & CA; & End. Status w/ Crit. Hab. for 1 Plant in Ash Meadows; 50 FR 20777-20794
10/13/1983 48 FR 46590 46598 Proposed End. Status & Crit. Hab. for Seven Plant & One Insect Species in Ash Meadows, NV & CA; 48 FR 46590-46598
Last updated: April 16, 2014