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.
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. (en)
The Santa Cruz tarplant is listed as threatened under the federal Endangered Species Act , and endangered under the state of California Endangered Species Act . (en)
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. (en)