Ariocarpus retusus is a great beginner ariocarpus also known as Living Rock cactus or Seven Star cactus, native to northern Mexico. These guys are SLOW slow growers, but my goodness do they grow into amazing plants! They are however the fastest growers of the genus. See second photo for an old specimen. These do need to completely dry out in the winter time. We generally stop watering them late fall and do not water again until late spring. Seed grown with large tap root. About 2” across. Shipped bare root
Taxonomy:
Synonyms
Homotypic Synonyms
- Anhalonium prismaticum Lem. in Cact. Gen. Sp. Nov.: 1 (1839), nom. superfl.
- Ariocarpus prismaticus Cobbold in J. Hort. Home Farm. III 46: 332 (1903), nom. superfl.
Heterotypic Synonyms
- Anhalonium areolosum Lem. in Ill. Hort. 6(Misc.): 35 (1859)
- Anhalonium elongatum Salm-Dyck in Cact. Hort. Dyck.: 15 (1845)
- Anhalonium furfuraceum (S.Watson) J.M.Coult. in Contr. U.S. Natl. Herb. 3: 130 (1894)
- Anhalonium pulvilligerum Lem. in Herb. Gén. Amat., sér. 2, 3(Misc.): 44 (1843)
- Anhalonium retusum Salm-Dyck in Cact. Hort. Dyck.: 15 (1845)
- Ariocarpus confusus Halda & Horáček in Cactaceae (Bratislava) 7: 1 (1997)
- Ariocarpus elongatus (Salm-Dyck) Wettst. in Palaeobiologica 1: 362 (1928)
- Ariocarpus elongatus subsp. horacekii (Halda) Haldain Acta Mus. Richnov., Sect. Nat. 5: 36 (1998)
- Ariocarpus furfuraceus (S.Watson) H.S.Thomps. in Rep. (Annual) Missouri Bot. Gard. 9: 130 (1898)
- Ariocarpus furfuraceus f. cristata Frič in Život v Přír. 29(4): 14 (1925)
- Ariocarpus furfuraceus var. rostratus A.Berger in Kakteen: 334 (1929)
- Ariocarpus prismaticus var. maior Frič in Život v Přír. 29: 9 (1925)
- Ariocarpus prismaticus var. minor Frič in Život v Přír. 29: 9 (1925)
- Ariocarpus pulvilligeris (Monv. ex C.F.Först. & Rümpler) K.Schum. in Bot. Jahrb. Syst. 24: 550 (1898)
- Ariocarpus retusus subsp. confusus (Halda & Horáček) Lüthy in Kakteen And. Sukk. 50: 278 (1999)
- Ariocarpus retusus var. furfuraceus (S.Watson) G.Frank in Kakteen 63: CVIIIb (1975), no basionym date.
- Ariocarpus retusus subsp. horacekii Halda & Panar. in Acta Mus. Richnov., Sect. Nat. 5: 163 (1998)
- Ariocarpus retusus subsp. jarmilae Halda, Horáček & Panar. in Acta Mus. Richnov., Sect. Nat. 5: 162 (1998)
- Ariocarpus retusus subsp. panarottoi Halda & Horáčekin Acta Mus. Richnov., Sect. Nat. 5: 163 (1998)
- Ariocarpus retusus subsp. pectinatus Weisbarth in Kakteen And. Sukk. 54: 291 (2003)
- Ariocarpus retusus subsp. scapharostroides Halda & Horáček in Cactaceae (Bratislava) 7: 97 (1997)
- Ariocarpus retusus subsp. sladkovskyi Halda & Kupčák in Acta Mus. Richnov., Sect. Nat. 7: 33 (2000)
- Ariocarpus trigonus var. elongatus (Salm-Dyck) Backeb. in Cactac.: Handb. Kakteenk. 5: 3087 (1961)
- Ariocarpus trigonus var. horacekii Halda in Cactaceae (Bratislava) 7: 97 (1997)
- Cactus areolosus Kuntze in Revis. Gen. Pl. 1: 260 (1891)
- Cactus prismaticus (Hemsl.) Kuntze in Revis. Gen. Pl. 1: 261 (1891), nom. illeg.
- Cactus procerus (C.Ehrenb.) Kuntze in Revis. Gen. Pl. 1: 261 (1891)
- Mammillaria aloides Monv. ex Labour. in Monogr. Cact.: 153 (1853)
- Mammillaria areolosa Hemsl. in Biol. Cent.-Amer., Bot. 1: 503 (1880)
- Mammillaria elongata Hemsl. in Biol. Cent.-Amer., Bot. 1: 509 (1880), nom. illeg.
- Mammillaria furfuracea S.Watson in Proc. Amer. Acad. Arts 25: 150 (1890)
- Mammillaria prismatica Hemsl. in Biol. Cent.-Amer., Bot. 1: 517 (1880)
- Mammillaria procera C.Ehrenb. in Allg. Gartenzeitung 17: 241 (1849)
- Mammillaria pulvilligera Monv. ex C.F.Först. & Rümplerin Handb. Cakteenk., ed. 2: 231 (1885)
- Mammillaria purpuracea S.Watson in Proc. Amer. Acad. Arts 25: 150 (1890)
Grower's Choice:
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