◊ Contr. US Nat. Herb. 12:431 (1909)
◊◊ Cereus spinulosus DC - Mém. Mus. Hist. Paris 17:117 (1828)
Selenicereus pseudospinulosus Wgt - Monatschr. Kakteenk. 41:255 (1931)
Mediocactus spinulosus (DC)Dwld - Sukkulenty (Moskou) 4(1-2):42 (2002)
- Shiny green, with some aerial roots. Stems long, up to 1.3 cm thick. Ribs
4-5(-6), sharp, later shallow. Areoles red brown, later grey brown. Spines
yellowish brown to white. Periferal spines 6, of which 2 longer, 5 mm long,
adpressed, 4 shorter, 2 mm long. Central spines 1, 5 mm long. Flower 15 cm
long and broad, not scented, white. Ovary with reddish to white bristles.
Outer petals light red brown. Pistil white.
- VS: Texas; Mexico: Hidalgo, Nuevo León, Puebla, Querétaro, Tamaulipas,
Veracruz, Tabasco, San Luis Potosí, Oaxaca, Chiapas, Guanajuato, up to 2100 m.
Cact. 2:207", plate 38
Backeberg 2:790
Ash. 1-6:70"
KuaS 29(3):60
Bravo 1:462, 478", 479"
Bradleya 7:92
EPIG 11(3):95-99"
NCL 263"