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.Biota of North America Program 2014 county distribution mapHitchcock, 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.
Description 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.Flora of North America, John Day pincushion, Chaenactis nevii A.Gray
The species is named for American missionary and botanist Reuben Denton Nevius (1827-1913).Gray, Asa 1883. Proceedings of the American Academy of Arts and Sciences 19: 30.
References
External links 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 Article on Reuben Nevius