| Stylocline | |
|---|---|
 | |
| Stylocline micropoides southern Nevada | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Gnaphalieae |
| Genus: | Stylocline Nutt. |
| Type species | |
| Stylocline gnaphaloides[1] | |
Stylocline (neststraw) is a small genus of North American desert plants in the tribe Gnaphalieae within the family Asteraceae.[1][2]
Neststraw is native to the southwestern United States and northern Mexico.[3]
Description
Species of Stylocline are generally small plants, and certain ones are difficult to distinguish from each other because identifying characteristics are too small to see with the naked eye.
They are annuals with woolly, hairy, or spiderwebby textures. Thin stems end in heads of disc flowers or tubular pistillate flowers. The fruits are smooth and shiny and encapsulated within the disc heads.[3]
Species
- Stylocline citroleum - oil neststraw — California (Kern + San Diego Counties)
- Stylocline gnaphaloides - mountain neststraw — California, Arizona
- Stylocline intertexta - Morefield's neststraw — California, Arizona, Nevada, Utah
- Stylocline masonii - Mason's neststraw — California (Kern, Los Angeles, San Luis Obispo, & Monterey Counties)
- Stylocline micropoides - woolly neststraw — Sonora, Baja California, California, Arizona, Nevada, Utah, New Mexico, Texas
- Stylocline psilocarphoides - baretwig neststraw — California, Nevada, Oregon, Idaho, Utah
- Stylocline sonorensis - Sonoran neststraw — Sonora, California (Riverside County), and Arizona (Pima, Pinal, Santa Cruz, & Graham Counties)
Former species
Species formerly included and reclassified:[4]
- Stylocline acaulis — Hesperevax acaulis
- Stylocline amphibola — Micropus amphibolus
- Stylocline amphiloba — Micropus amphibolus
- Stylocline griffithii — Cymbolaena griffithii
- Stylocline filaginea var. filaginea — Ancistrocarphus filagineus
- See also other species of the genera Ancistrocarphus, Cymbolaena, Hesperevax, and Micropus.
References
- 1 2 Nuttall, Thomas. 1840. Transactions of the American Philosophical Society, new series 7: 338–339 in English
- ↑ Tropicos, Stylocline Nutt.
- 1 2 Flora of North America, Vol. 19, 20 and 21 Page 450 Neststraw, Stylocline Nuttall
- 1 2 Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-11-06 at archive.today
- ↑ Biota of North America Program 2013 county distribution maps
External links
- USDA Plants Profile for Stylocline (neststraw)
- CalFlora Database: Stylocline (neststraw) links — native California species .
- Jepson Manual (TJM) treatment: Stylocline
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