| Ptilostemon | |
|---|---|
|  | |
| Ptilostemon diacantha | |
| Scientific classification | |
| Kingdom: | Plantae | 
| (unranked): | Angiosperms | 
| (unranked): | Eudicots | 
| (unranked): | Asterids | 
| Order: | Asterales | 
| Family: | Asteraceae | 
| Tribe: | Cynareae | 
| Genus: | Ptilostemon Cass. | 
| Synonyms | |
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Ptilostemon is a genus of plants in the thistle tribe within the sunflower family.