Enceliopsis nudicaulis explained

Enceliopsis nudicaulis is a North American species of flowering plants in the family Asteraceae known by the common name nakedstem sunray, or naked-stemmed daisy.^[1]

Description

E. nudicaulis is a perennial herb growing up to 45cm (18inches) tall from a woody caudex fringed with gray-green hairy leaves.^[2] The leaves are oval and up to 6.5sp=usNaNsp=us long and wide.

Blooming from May to August, the inflorescence is a solitary flower head atop a tall, erect peduncle. The flower head is NaNcm (-2,147,483,648inches); it has a base made up of three layers of densely woolly, pointed phyllaries. It has a fringe of approximately 21 yellow ray florets each NaNcm (-2,147,483,648inches) long. The fruit is a hairy achene about 1 cm in length.^[3]

Varieties

There are two recognized varieties of this species:^[3]

• Enceliopsis nudicaulis var. corrugata, the Ash Meadows sunray – the rarer variety, which is probably endemic to Nevada in the vicinity of Ash Meadows in the Amargosa Desert; it is federally listed as threatened.^[4]
• Enceliopsis nudicaulis var. nudicaulis – found in most of species range^[5]

Distribution and habitat

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.^[6] It grows in desert, plateau, and montane habitats.

Uses

It is sometimes used as an ornamental plant in dry areas.

External links

• Calflora Database: Enceliopsis nudicaulis (Naked stemmed daisy, Nakedstem sunray)
• Jepson Manual Treatment — Enceliopsis nudicaulis
• United States Department of Agriculture Plants Profile: Enceliopsis nudicaulis
• UC Calphotos gallery of Enceliopsis nudicaulis

Notes and References

1. http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=2969 Calflora taxon report, University of California, Enceliopsis nudicaulis (A. Gray) Nelson, naked stemmed daisy, nakedstem sunray
2. Book: Spellenberg, Richard . National Audubon Society Field Guide to North American Wildflowers: Western Region . Knopf . 2001 . 978-0-375-40233-3 . rev . 370 . 1979.
3. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220004722 Flora of North America, Naked-stemmed daisy, Enceliopsis nudicaulis (A. Gray) A. Nelson
4. Web site: Nevada Natural Heritage Program Rare Plants Fact Sheet . dead . https://web.archive.org/web/20040731072943/http://heritage.nv.gov/atlas/encelnudiccorru.pdf . 2004-07-31 . 2022-07-13.
5. http://ucjeps.berkeley.edu/cgi-bin/get_cpn.pl?7225 Jepson Manual: var. nudicaulis
6. http://bonap.net/MapGallery/County/Enceliopsis%20nudicaulis.png Biota of North America PRogram 2014 county distribution map