| Oreostemma peirsonii | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Oreostemma |
| Species: | O. peirsonii
|
| Binomial name | |
| Oreostemma peirsonii (Sharsm.) G.L.Nesom
| |
| Synonyms | |
|
Aster peirsonii | |
Oreostemma peirsonii (formerly Aster peirsonii) is a species of flowering plant in the family Asteraceae known by the common names Peirson's aster and Peirson's mountaincrown.
It is endemic to the Sierra Nevada of California, especially around the area where Fresno, Tulare, and Inyo Counties meet. It is a plant of the alpine climate of the high mountain peaks.