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Holocarpha macradenia
Also called Santa Cruz Tarweed
Holocarpha macradenia, commonly known as the Santa Cruz tarplant, is an endangered plant endemic to Northern California. Alternative common names for this plant are Santa Cruz tarweed or Santa Cruz sunflower.
The plant's principal range is on certain coastal terraces in Santa Cruz County and Monterey County. Smaller colonies are to the north in Alameda County, Contra Costa County, and Marin County. It is found from sea level to 110 metres (360 ft).
Heermann's tarweed · San Joaquin tarweed · Yellowflower tarweed · Tarweed
Text excerpted from the Wikipedia article Holocarpha macradenia by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
