Calflora, a 501c3 non-profit
Distribution by County   9544    
Centromadia pungens  (Hook. & Arn.) Greene  ssp. pungens 
Common tarweed
Centromadia pungens ssp. pungens is an annual herb that is native to California, and endemic (limited) to California.
also called Hemizonia pungens ssp. septentrionalis
Record Count by County

Alameda: 53 Los Angeles: 17 Sacramento: 9 Santa Cruz: 7
Butte: 5 Madera: 20 San Benito: 197 Siskiyou: 1
Colusa: 11 Marin: 1 San Bernardino: 7 Solano: 16
Contra Costa: 26 Mendocino: 2 San Diego: 5 Sonoma: 8
Fresno: 88 Merced: 101 San Francisco: 3 Stanislaus: 22
Glenn: 3 Monterey: 101 San Joaquin: 8 Sutter: 5
Kern: 190 Napa: 3 San Luis Obispo: 32 Tehama: 1
Kings: 6 Nevada: 1 San Mateo: 15 Tulare: 70
Lake: 2 Orange: 1 Santa Barbara: 1 Yolo: 4
Lassen: 9 Riverside: 32 Santa Clara: 48

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).