Stenocactus

 

Stenocactus is a genus of northern and central Mexican cacti of around 10 species related to Ferocactus. It now includes Hertrichocereus and Echinofossulocactus. They are mostly small globular cactus, of very variable characteristics, generally below 4 inches in diameter (10 cm), often solitary, but sometimes clustering as they age. The name echinofossulocactus comes from the Latine for 'Echinocactus with a little ditch', referring to the small wrinkle extending from the top of the areola in some species. They contain the wave cacti, also called brain cacti, that are so named because of their large number of undulating ribs.

The short funnel-shaped flowers are generally striped with a darker median line and, just above 1 inch across (2.5 cm). These flowers come in late summer and last 3-4 days. Stenocactus are not always self-fertile, so you might need to have several non related plants flowering at the same time, in order to get seeds. The seeds come in green pods.

They are propagated by seeds that germinate easily.

Species and varieties
Stenocactus coptonogonus
Stenocactus crispatus
Stenocactus hastatus
Stenocactus multicostatus (Brain Cactus)
Stenocactus multicostatus 'zacatecasensis' (Wave Cactus, Brain Cactus)
Stenocactus obvallatus
Stenocactus ochoterenanus
Stenocactus phyllacanthus
Stenocactus rectispinus
Stenocactus sulphureus
Stenocactus vaupelianus
Stenocactus albatus synonym of Stenocactus vaupelianus
Stenocactus arrigens synonym of Stenocactus crispatus
Stenocactus bustamantei synonym of Stenocactus ochoterenanus
Stenocactus confusus synonym of Stenocactus crispatus
Stenocactus dichroacanthus synonym of Stenocactus crispatus
Stenocactus dichroacanthus var. violaciflorus synonym of Stenocactus crispatus
Stenocactus dichroacanthus var. violaciflorus synonym of Stenocactus crispatus
Stenocactus heteracanthus synonym of Stenocactus ochoterenanus
Stenocactus lamellosus synonym of Stenocactus crispatus
Stenocactus lancifer synonym of Stenocactus crispatus
Stenocactus lexarzai synonym of Stenocactus ochoterenanus
Stenocactus lloydii synonym of Stenocactus multicostatus (Brain Cactus)
Stenocactus parksianus synonym of Stenocactus ochoterenanus
Stenocactus pentacanthus synonym of Stenocactus obvallatus
Stenocactus rectispinus synonym of Stenocactus vaupelianus
Stenocactus tricuspidatus synonym of Stenocactus phyllacanthus
Stenocactus violaciflorus synonym of Stenocactus crispatus

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