Calflora
Taxon  Report   4066    
Hemizonia congesta  DC.  ssp. calyculata  Babc. & H. M. Hall
Hayfield tarweed,  Mendocino tarplant
Hemizonia congesta ssp. calyculata, a dicot, is an annual herb that is native to California and and is endemic (limited) to California.
also called Hemizonia calyculata
California Rare Plant Rank: 4.3 (limited distribution).   CNPS Inventory
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
Observation Search
(63 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: ASTERACEAE  
Genus: Hemizonia
Parent: Hemizonia congesta

Serpentine affinity: 1.5; (weak indicator)

Communities: Valley Grassland, Foothill Woodland

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
JEF + CNPS + PLANTS: Hemizonia calyculata
More information about  Hemizonia congesta ssp. calyculata
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (HECOC5)


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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Jul 12, 2020).