| Centromadia fitchii | |
|---|---|
| |
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Centromadia |
| Species: | C. fitchii
|
| Binomial name | |
| Centromadia fitchii | |
| Synonyms[1] | |
|
Hemizonia fitchii A.Gray | |
Centromadia fitchii, common name Fitch's spikeweed[2] or Fitch's tarweed,[3] is a species of North American plants in the tribe Madieae within the family Asteraceae. It is native to California and southwestern Oregon.[4][5]
Centromadia fitchii is an herb up to 50 cm (20 inches) tall. It produces arrays of numerous yellow flower heads with both ray florets and disc florets.[6][7][8]
- ^ The Plant List, Centromadia fitchii (A.Gray) Greene
- ^ BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
- ^ USDA, NRCS (n.d.). "Hemizonia fitchii". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 5 June 2015.
- ^ Biota of North America Program 2014 county distribution map
- ^ Calflora taxon report, University of California, Centromadia fitchii (A.Gray) Greene, Spikeweed
- ^ Flora of North America, Spikeweed, Centromadia Greene
- ^ Greene, Edward Lee 1894. Manual of the Botany of the Region of San Francisco Bay 197
- ^ Gray, Asa 1857. Reports of explorations and surveys: to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean, made under the direction of the Secretary of War 4: 109 as Hemizonia fitchii