Cereus uruguayanus

Night-blooming cactus
February 6, 2018

Scientific classification
Kingdom:Plantae
(unranked):Angiosperms
(unranked):Eudicots
(unranked):Core eudicots
Order:Caryophyllales
Family:Cactaceae
Subfamily:Cactoideae
Tribe:Cereeae
Genus:Cereus

From my collection

via Flickr https://flic.kr/p/KbCkqB