Echinocereus rigidissimus

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Echinocereus rigidissimus (Engelm.) Rose in Contr. U.S. Natl. Herb. 12: 293. 1909 sec. Sánchez & al. 20181

≡Cereus pectinatus var. rigidissimus Engelm. in Proc. Amer. Acad. Arts 3: 279. 1856 syn. sec. Parfitt & Gibson 20032
≡Echinocereus pectinatus var. rigidissimus (Engelm.) Rümpler, Handb. Cacteenk., ed. 2: 818. 1885 syn. sec. Parfitt & Gibson 20032
≡Echinocereus dasyacanthus var. rigidissimus (Engelm.) W.T.Marshall in Marshall & Bock, Cactaceae: 119. 1941 syn. sec. Kew WCVP (2019)3
≡Echinocereus rigidissimus var. rigidissimus syn. sec. ???
–Echinocereus rigidissimus (Engelm.) F.Haage, Special Preisverz.: 13. 1897, nom. inval., syn. sec. Sánchez & al. 20181

1. Sánchez, D., Arias, S., Grego-Valencia, D. & Terrazas, T. 2018: Phylogeny in Echinocereus (Cactaceae) based on combined morphological and molecular evidence: taxonomic implications. – Systematics and Biodiversity 16: 28-44. http://doi.org/10.1080/14772000.2017.1343260 , 2. Parfitt, B.D. & Gibson, A.C. 2003: Cactaceae. – In: Flora of North America Editorial Committee, Flora of North America 4. Magnoliophyta: Caryophyllidae, part 1, 3. Kew WCVP (2019)

–Echinocereus rigidispinus (Muehlenpf.) Engelm. ex J.N.Haage in Preis-Verz. Cact.: 23. 1859, nom. nud., syn. sec. Blum & al. 19984

4. Blum, W., Lange, M., Rischer, M. & Rutow, J. 1998: Echinocereus, Monographie. – Aachen: Selbstverlag

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