Chaenactis nevii is a North American species of flowering plants in the aster family known by the common name John Day pincushion. It is found only in the John Day Basin area in the US State of Oregon.[1][2]
| Chaenactis nevii | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Chaenactis |
| Species: | C. nevii
|
| Binomial name | |
| Chaenactis nevii | |
Description edit
Chaenactis nevii is a perennial up to 30 cm (12 inches) tall. Each branch produces 1-3 flower heads each containing yellow disc florets but no ray florets.[3]
The species is named for American missionary and botanist Reuben Denton Nevius (1827-1913).[4]
References edit
- ^ Biota of North America Program 2014 county distribution map
- ^ Hitchcock, C. H., A.J. Cronquist, F. M. Ownbey & J. W. Thompson. 1984. Compositae. Part V.: 1–343. In C. L. Hitchcock Vascular Plants of the Pacific Northwest. University of Washington Press, Seattle.
- ^ Flora of North America, John Day pincushion, Chaenactis nevii A.Gray
- ^ Gray, Asa 1883. Proceedings of the American Academy of Arts and Sciences 19: 30.
External links edit
- Paul Slichter, The Genus Chaenactis East of the Cascade Mts., John Day Chaenactis, John Day's Pincushion, Nevius's Chaenactis, Chaenactis nevii photos
- United States Department of the Interior, National Park Service, State of the Park Report for John Day Fossil Beds National Monument, Resource Brief - Rare Plants
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