| 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[1] | |
|
Hemizonia macradenia DC. | |
Holocarpha macradenia, commonly known as the Santa Cruz tarplant, is an endangered plant endemic to Northern California.[2] Alternative common names for this plant are Santa Cruz tarweed or Santa Cruz sunflower.
- ^ The Plant List, Holocarpha macradenia (DC.) Greene
- ^ CalFlora . accessed 11.14.2011.