Calflora Taxon Report
Hemizonia congesta DC. ssp. congesta
Hayfield tarweed
Hemizonia congesta ssp. congesta is an annual herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere)

Alternate Names and Sources:
Hemizonia congesta ssp. leucocephalaJEPS
Hemizonia congesta ssp. vernalisJEPS
Hemizonia congesta, Hemizonia congesta ssp. leucocephalaCNPS
Hemizonia lutescensPLANTS
Hemizonia luzulifolia var. lutescensPLANTS
Hemizonia multicaulisPLANTS
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
DJJJASONAFMM

Bloom Period
yellowone or more occurrences
within a 7.5-minute quadrangle
The blue points on the map indicate observations in Calflora.
Click on the map to view observations within a specific county.


Accepted by: JEPS + CNPS + PLANTS
Jepson eFlora section:
eudicot
USDA PLANTS group:
Dicot

1.3 - weak indicator / indifferent
Northern Coastal Scrub, Valley Grassland
Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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