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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
Conservation status
Least Concern  (IUCN 3.1)
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 (Engelm.) Britton & Rose[1]
Synonyms
Mammillaria echinus Engelm.

Coryphantha echinus was first collected by Charles Wright in 1849 and was later described as Mammillaria echinus by George Engelmann.[2]

References

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