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Oreocereus is a genus of cacti (family Cactaceae), known only from high altitudes of the Andes. Its name means "mountain cereus", formed from the Greek prefix oreo- (ὀρεο-, mountain)[1] and the New Latin cereus, meaning wax or torch.

Oreocereus
Oreocereus celsianus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Tribe:	Trichocereeae
Genus:	Oreocereus (A.Berger) Riccob.
Type species
Oreocereus celsianus
Species
See Text etc.

As they are covered with woolly white fuzz (modified spines), a few species in this genus are sometimes known as the old-man cactus,[2][3] a generic name that also refers to Cephalocereus senilis or Espostoa lanata. More rarely, the old man of the mountain is also used for some species.[nb 1]

Species

Image	Scientific name	Distribution
	Oreocereus australis (F.Ritter) A.E.Hoffm.	Peru to Chile (Tarapacá)
	Oreocereus celsianus (Lem. ex Salm-Dyck) A.Berger ex Riccob.	Peru, Bolivia, Argentina (Jujuy)
	Oreocereus doelzianus (Backeb.) Borg	Peru.
	Oreocereus fossulatus (Labour.) Backeb.	Peru to Argentina (Jujuy)
	Oreocereus hempelianus (Gürke) D.R.Hunt	Peru to Chile (Tarapacá)
	Oreocereus hendriksenianus Backeb.	Peru, Chile
	Oreocereus leucotrichus (Phil.) Wagenkn.	Chile, Peru
	Oreocereus ritteri Cullmann	Peru
	Oreocereus tacnaensis F.Ritter	Peru
	Oreocereus trollii (Kupper) Backeb.	Argentina, Bolivia
	Oreocereus varicolor Backeb.	Chile, Peru

Synonymy

The following genera have been included in this genus:

• Arequipa Britton & Rose
• Arequipiopsis Kreuz. & Buining
• Morawetzia Backeb.
• Submatucana Backeb.

References

На других языках

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- [en] Oreocereus

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[es] Oreocereus

Oreocereus es un género de cactus perteneciente a la familia Cactaceae, conocidos solamente en grandes altitudes de los Andes. Comprende 42 especies descritas y de estas, solo 11 aceptadas.[1]

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