Calflora, a 501c3 non-profit
Distribution by County   4096    
Hemizonia pungens  (Hook. & Arn.) Torr. & A. Gray

(not an active name)
Common spikeweed,   Common tarweed
Hemizonia pungens is an annual herb that is native to California, and endemic (limited) to California.
also called Centromadia pungens
Record Count by County

Alameda: 58 Los Angeles: 16 Riverside: 190 Santa Clara: 47
Butte: 6 Madera: 13 Sacramento: 14 Santa Cruz: 10
Colusa: 7 Marin: 2 San Benito: 197 Siskiyou: 4
Contra Costa: 36 Mendocino: 2 San Bernardino: 23 Solano: 19
El Dorado: 1 Merced: 105 San Diego: 29 Sonoma: 8
Fresno: 99 Modoc: 4 San Francisco: 4 Stanislaus: 25
Kern: 205 Monterey: 102 San Joaquin: 12 Sutter: 6
Kings: 7 Napa: 4 San Luis Obispo: 38 Tehama: 1
Lake: 3 Nevada: 1 San Mateo: 19 Tulare: 82
Lassen: 8 Orange: 2 Santa Barbara: 2 Yolo: 20

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: 05/15/2024).