Enceliopsis nudicaulis

Enceliopsis nudicaulis is a North American species of flowering plants in the daisy family known by the common name nakedstem sunray, or naked-stemmed daisy.[2]

Enceliopsis nudicaulis
var. corrugata
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Heliantheae
Genus:
Enceliopsis
Species:
E. nudicaulis
Binomial name
Enceliopsis nudicaulis
Synonyms[1]
  • Encelia nudicaulis A.Gray
  • Enceliopsis tuta A.Nelson
  • Helianthella nudicaulis (A.Gray) A.Gray

Distribution

Enceliopsis nudicaulis is native to the western United States: Idaho, Colorado, Utah, Nevada, Arizona, and California including the Inyo Mountains-White Mountains and sky islands the Mojave Desert in California.[3] It grows in desert, plateau, and montane habitats.[2]

Description

Enceliopsis nudicaulis is a perennial herb growing up to 40 centimeters (16 inches) tall from a woody caudex fringed with gray-green hairy leaves. The leaves are oval and up to 6 centimeters (2.4 inches) long and wide.[4]

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 (0.8-1.6 inches) long. The fruit is a hairy achene about one centimeter (0.4 inches) in length.[4]

Varieties

There are two recognized varieties of this species:[4]

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References
  1. The Plant List, Enceliopsis nudicaulis (A. Gray) A. Nelson
  2. Calflora taxon report, University of California, Enceliopsis nudicaulis (A. Gray) Nelson, naked stemmed daisy, nakedstem sunray
  3. Biota of North America PRogram 2014 county distribution map
  4. Flora of North America, Naked-stemmed daisy, Enceliopsis nudicaulis (A. Gray) A. Nelson
  5. "Nevada Natural Heritage Program Rare Plants Fact Sheet" (PDF). Archived from the original (PDF) on 2009-05-23. Retrieved 2009-05-19.
  6. Jepson Manual: var. nudicaulis
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