Echinocereus coccineus Engelmann 1848

arizona hedgehog, california hedgehog, cream-flowered hedgehog, golden rainbow hedgehog, mexican claret-cup cactus, white-spined claret-cup cactus Mammillaria aggregata Engelmann ex B. D. Jackson 1848, Cereus aggregata (Engelmann ex B. D. Jackson) J. M. Coulter 1896, Echinocereus aggregatus (Engelmann ex B. D. Jackson) Rydberg 1906,

Echinocereus cinerascens subsp. cinerascens, also illustrated on page 22
Echinocereus bristolii Echinocereus chisoensis var. chisoensis

Coryphantha aggregata (Engelmann ex B. D. Jackson) Britton & Rose 1923, Escobaria aggregata (Engelmann ex B. D. Jackson) Bux-baum 1951, Echinocereus coccineus subsp. aggregatus (Engelmann ex B.D.Jackson) Blum et al. 1998 Cereus hexaedrus Engelmann & Bigelow 1856, Echinocereus hexae-

drus (Engelmann & Bigelow) Rümpler 1886 Cereus paucispinus Engelmann 1856, Echinocereus triglochidiatus var. paucispinus (Engelmann) W. T. Marshall 1941, E. coccineus var. paucispinus (Engelmann) D. J. Ferguson 1989, E. coccineus subsp. paucispinus (Engelmann) Blum etal. 1998 Echinocereus roemeri F. Haage 1859, E. coccineus subsp. roemeri

(F. Haage) Blum etal. 1998 Echinocereus krausei Rümpler 1886 Echinocereus kunzei Gürke 1907 ?Echinocereus neomexicanus Standley 1908 Echinocereus rosei Wooten & Standley 1915, E. coccineus subsp. rose/'

(Wooten & Standley) Blum etal. 1998 Echinocereus arizonicus Rose ex Orcutt 1926, E. triglochidiatus var. ari-zonicus (Rose ex Orcutt) L. D. Benson 1969, £ coccineus var. arizonicus (Rose ex Orcutt) D. J. Ferguson 1989 Echinocereus canyonens/s Clover & Jotter 1941 Echinocereus decumbens Clover & Jotter 1941, E. engelmannii subsp.

decumbens (Clover & Jotter) Blum & Lange 1998 Echinocereus matudae Bravo 1961, E. arizonicus subsp. matudae

(Bravo) Rutow 1994 Echinocereus triglochidiatus var. gurneyi L. D. Benson 1969, E. coccineus var. gurneyi(L D. Benson) K. D. Heil & Brack 1988 Echinocereus triglochidiatus var. toroweapensis P. C. Fischer 1991,

E. toroweapensis (P. C. Fischer) Fürsch 1993 Echinocereus arizonicus subsp. nigrihorridispinus Blum & Rutow 1998

Plants usually branched and forming mounds of few to many stems, to 1 m (3.3 ft) in diameter. Stems ovoid to cylindrical, light green, to 40 cm (16 in) long, 2.5-5 cm (1-2 in) in diameter. Ribs 5-12, often forming tubercles. Spines difficult to distinguish as centrals and radials, yellow to blackish. Central spines 0-4, angular in cross section, the main one often flattened, to 7 cm (2.8 in) long. Radial spines 5-20, round in cross section. Flowers borne below the stem tips, sometimes unisexual (plants dioecious), broadly funnelform, orangered, 3-10 cm (1.2-3.9 in) long, 2.5-8 cm (1-3.1 in) in diameter. Fruits globose, becoming red, with spines falling away. Distribution: Colorado, Arizona, New Mexico, and west Texas, south into Sonora, Coahuila, and Chihuahua, Mexico.

Echinocereus coccineus is used medicinally (Chapter 2, under Cacti as Medicine). Variety arizonicus (as E. triglochidiatus var. arizonicus) is listed as endangered in the U.S. Endangered Species Act though it seems uncertain whether the variety should be recognized taxonomically. Echinocereus coccineus is closely related to and easily confused with E. triglochidiatus, and there are many cases of hybridization between the species.

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