| Coryphantha echinus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Coryphantha |
| Species: | C. echinus |
| Binomial name | |
| Coryphantha echinus | |
| Synonyms | |
Mammillaria echinus Engelm. | |
Coryphantha echinus is a species of cactus known by the common names of sea urchin cactus, hedgehog Cory cactus [2] or rhinoceros cactus. [3] C. echinus is found in the south and east portion of the Trans-Pecos to Del Rio, Chihuahua, Coahuila and sporadically in the northeast Trans-Pecos. [2] The plant normally occurs in solitary groupings, but sometimes grows as a clump. [4] It produces short-lived yellow flowers that last for a couple of hours between April and July. [4] [2] After flowering, it produces green fruits. [2]
Coryphantha echinus was first collected by Charles Wright in 1849 and was later described as Mammillaria echinus by George Engelmann. [2]