Centromadia fitchii, common name Fitch's spikeweed or Fitch's tarweed, is a species of North American plants in the tribe Madieae within the family Asteraceae. It is native to California and southwestern Oregon.Biota of North America Program 2014 county distribution mapCalflora taxon report, University of California, Centromadia fitchii (A.Gray) Greene, Spikeweed
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.Flora of North America, Spikeweed, Centromadia GreeneGreene, Edward Lee 1894. Manual of the Botany of the Region of San Francisco Bay 197Gray, 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
References
External links Calflora Database: Centromadia fitchii (Spikeweed) U.C. Photos gallery Centromadia fitchii — formerly Hemezonia fitchii.