Astrophytum asterias (Sand Dollar Cactus) is a small, spineless cactus with a solitary spherical, apically depressed dark green stem with 5…
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Escobaria missouriensis (Missouri Foxtail Cactus) is a small cactus with oblate or spheric to obconic stems with elongate tubercles tipped…
Opuntia rufida (Blind Prickly Pear), formerly known as Opuntia microdasys subsp. rufida, is a much-branched cactus that forms a dense…
Acanthocereus tetragonus (Triangle Cactus) is a columnar cactus with dark green stems with usually 3 to 5 ribs and clusters of spines…
Lophophora williamsii (Peyote) is a slow-growing cactus with spineless flattened spherical stems with a tuft of yellowish or whitish…