Stephanocereus

Stephanocereus is genus of cactus from Brazil, related to Arrojadoa. This genus is monotypic with the sole species Stephanocereus leucostele^[1]

Stephanocereus
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Tribe:	Cereeae
Genus:	Stephanocereus
Species:	S. leucostele
Binomial name
Stephanocereus leucostele .(Gürke) A.Berger
Synonyms
Arrojadoa leucostele (Gürke) Anceschi & Magli Cephalocereus leucostele (Gürke) Britton & Rose Cereus leucostele Gürke Pilocereus leucostele (Gürke) Werderm.

Description

Stephanocereus leucostele is a tall, segmented cactus with a blue stem. Unbranched or sparsely branched, Stems can reach upwards of 2 meters tall and have around 18 obtuse ribs. The areoles, spaced 12-16 mm, have 12-16 radial spines and 4-6 strong central spines, all are yellowish in color. Ribs are triangular with rounded edges around 5mm high. The tubular flower arise from the brownish ring-like cephalium that segments the stem. Fruits are glabrous, almost spherical, and 4 by 3.5 centimeters.^[2]