Chaenactis

Chaenactis is a genus of plants in the daisy family which are known generally as pincushions or dustymaidens.[2][3]

Chaenactis
Chaenactis fremontii
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Asterids
Order:	Asterales
Family:	Asteraceae
Tribe:	Heliantheae
Genus:	Chaenactis DC.
Synonyms[1]
Acicarphaea Walp. Macrocarphus Nutt. Acarphaea Harv. & A.Gray ex A.Gray

These wildflowers are native to western North America, especially the desert southwest of the United States. They are quite variable in appearance. They are generally aster-like in appearance with many disc florets in each head. There may be only disc florets, but sometimes there are also enlarged ray florets along the edges of the corolla. They may be white to yellow or pink.[4]

Species

Species include:[1][5][6]

• Chaenactis alpigena — Southern Sierra pincushion; California, Nevada.
• Chaenactis artemisiifolia — White pincushion; California, Baja California.
• Chaenactis carphoclinia — Pebble pincushion; California, Baja California, Nevada, Arizona, Utah, New Mexico.
• Chaenactis cusickii — Oregon, Idaho.
• Chaenactis douglasii — Douglas' dustymaiden; California, Nevada, Arizona, Utah, New Mexico, Colorado, Wyoming, Nebraska, South Dakota, North Dakota. Montana Idaho Oregon Washington British Columbia Alberta
• Chaenactis evermannii — Idaho.
• Chaenactis fremontii — Fremont's pincushion; California, Baja California, Nevada, Arizona, Utah.
• Chaenactis furcata — Baja California.
• Chaenactis glabriuscula — Yellow pincushion; California, Baja California.
• Chaenactis lacera — Baja California, Baja California Sur
• Chaenactis macrantha — Bighead dustymaiden; California, Nevada, Arizona, Utah, Idaho, Oregon.
• Chaenactis nevadensis — Nevada dustymaiden; California, Nevada.
• Chaenactis nevii — Oregon
• Chaenactis parishii — Parish's dustymaiden; California, Baja California.
• Chaenactis santolinoides - Santolina dustymaiden; California.
• Chaenactis stevioides — Esteve's pincushion; California, Baja California, Baja California Sur, Nevada, Arizona, Sonora, Utah, Idaho, Oregon, Idaho, Wyoming, Colorado, New Mexico, New York State.
• Chaenactis suffrutescens — Shasta dustymaiden; California, Oregon.
• Chaenactis thompsonii — Washington
• Chaenactis xantiana — Mojave pincushion; California, Baja California, Nevada, Arizona, Oregon.

References

1. Flann, C (ed) 2009+ Global Compositae Checklist
2. Candolle, Augustin Pyramus de. 1836. Prodromus Systematis Naturalis Regni Vegetabilis 5: 659 in Latin
3. Tropicos, Chaenactis DC.
4. Flora of North America, Chaenactis de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 659. 1836.
5. Biota of North America Program 2013 county distribution maps
6. CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, México D.F.

External links

• Calflora Database: Chaenactis Taxon Report — with species links + images.
• Jepson Manual eFlora treatment of Chaenactis
• USDA Plants Profile for Chaenactis
• Southwest Colorado Wildflowers.com: photos of region's species