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{{SPlantbox
{{SPlantbox
|familia=Cactaceae
|genus=Oreocereus
|genus=Oreocereus
|habit=cacti-succulent
|Temp Metric=°F
|Temp Metric=°F
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
|image=Upload.png
|image=Oreocereus celsianus 1.jpg
|image_width=240
|image_width=200
|image_caption=A small ''O. celsianus''
}}
}}
'''''Oreocereus''''' is a [[genus]] of [[cactus|cacti]] ([[family (biology)|family]] [[Cactaceae]]), known only from high altitudes of the [[Andes]]. Its name was formed from [[Greek language|Greek]] and means "mountain cereus".
{{Inc|
{{Inc|
Oreocereus (the mountain Cereus). Pilocereus in part of authors. Cactaceae. Usually large columnar plants with strong armaments and producing long white hairs or wool like Cephalocereus, but with very different fls.: ovary and fl.-tube covered by numerous imbricating bracts with their axils filled with long woolly hairs; stamens numerous, as long or longer than the petals; style long exscrted.—Two species are in cult, and are described below. They are cult, the same as Pilocereus.
Oreocereus (the mountain Cereus). Pilocereus in part of authors. Cactaceae. Usually large columnar plants with strong armaments and producing long white hairs or wool like Cephalocereus, but with very different fls.: ovary and fl.-tube covered by numerous imbricating bracts with their axils filled with long woolly hairs; stamens numerous, as long or longer than the petals; style long exscrted.—Two species are in cult, and are described below. They are cult, the same as Pilocereus.
==Varieties==
==Species==
*''[[Oreocereus celsianus]]'' - old man of the Andes
*''[[Oreocereus doelzianus]]''
*''[[Oreocereus fossulatus]]''
*''[[Oreocereus hendriksenianus]]''
*''[[Oreocereus leucotrichus]]''
*''[[Oreocereus maximus]]''
*''[[Oreocereus ritteri]]''
*''[[Oreocereus trollii]]''
*''[[Oreocereus variicolor]]''
The following genera have been included in this genus:
*'''''Arequipa''''' <small>[[Nathaniel Lord Britton|Britton]] & [[Joseph Nelson Rose|Rose]]</small>
*'''''Arequipiopsis''''' <small>[[Kreuz.]] & [[Buining]]</small>
*'''''Morawetzia''''' <small>[[Backeb.]]</small>
*'''''Submatucana''''' <small>[[Backeb.]]</small>
==Gallery==
==Gallery==
