Holocarpha macradenia
| Holocarpha macradenia | |
|---|---|
| The Santa Cruz tarplant is listed as threatened under the federal Endangered Species Act (ESA), and endangered under the state of California Endangered Species Act (CESA). | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Holocarpha |
| Species: | H. macradenia |
| Binomial name | |
| Holocarpha macradenia | |
| Synonyms | |
|
Hemizonia macradenia DC. | |
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.