Subspecies, varieties, forms and cultivars of plants belonging to the Astrophytum coahuilense group

• Astrophytum coahuilense (H.Moeller) K.Kayser: With five ribs it has a surprising similarity to Astrophytum myriostigma. However, it is different in all characteristics regarding flower, fruit, seed and embryo which looks like in all details to Astrophytum capricorne.
• Astrophytum coahuilense f. cristatum hort.
• Astrophytum coahuilense f. tricostatum hort.: (cv. Sankaku Hakuranpo-gyoku) This is a nice cultivar with only three ribs with dense white flecks that cover the stem.
• Astrophytum coahuilense cv. Hakuran: (cv. Kikkohakuranpogyoku) This cultivar is easily distinguishable for its more or less wide and long pointed tubercles along the ribs edges.
• Astrophytum coahuilense cv. Hakuran quadricostatum: Plant with only 4 ribs and long and pointed tubercles along the ribs edges.
• Astrophytum coahuilense cv. Hakuun
• Astrophytum coahuilense cv. Little Flowers: Produces small elongated stems that branch profusely. The flowers are very small yellow.