Stenocactus pentacanthus syn. Echinofossulocactus pentacanthus,Stenocactus pentacanthus

Original:Small growing, globular or short-cylindrical, ribs vary usually 30+, flowers usually 2.5cm white yellow or pink often with a single dark stripe one each petal Synonyms for this plant include Echinocactus obvallatus, Echinofossulocactus obvallatus, Echinocactus pentacanthus, Echinofossulocactus pentacanthus, Stenocactus pentacanthus, Echinofossulocactus caespitosus New:Stenocactus is a genus of cacti. A number of species of the genus Stenocactus are popular in cultivation. The plants are globose and remain relatively small so easy to manage in pots. They grow easily and flower readily in the spring. In addition to their ball-shape, most species in this genus have unique fin-like ribs that are numerous. This gives them a look like under sea coral. Spines are usually present and prominent, but not to the point of covering the stem. Flowers grow at the apex and are often white with a wide, dark pink midstripe, but can also be a plain creamy white. This genus is native to the Chihuahuan desert in Mexico. Individual plants can vary considerably within a species and this makes identification in this genus very difficult. There is a very long and convoluted nomenclatural history, but the genus is often still grown and traded among collectors under the genus name Echinofossulocactus The following genera have been brought into synonymy with Stenocactus: Echinofossulocactus Britton & Rose Efossus Orcutt (orth. var.)

Contributed by @bluehairbruh

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  Full sun

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  Very little water

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  Not Frost hardy

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  Light and free draining