Echinocereus triglochidiatus Engelmann 1848

BLACK-SPINE CLARET-CUP CACTUS, CLARET-CUP CACTUS, KING'S CROWN CACTUS, ROBUST CLARET-CUP HEDGEHOG, ROSE'S CLARET-CUP CACTUS, ROSE'S HEDGEHOG, SPINELESS HEDGEHOG, WHITE-SPINED CLARET-CUP HEDGEHOG Cereusgonacanthus Engelmann & Bigelow 1856, £ gonacanthus (Engelmann & Bigelow) Lemaire 1868, £ triglochidiatus var. gonacanthus Boissevain 1940 Echinocereus triglochidiatus var. inermis G. D. Rowley 1973

Plants nearly always much branched, often forming mounds more than 1 m (3.3 ft) wide with as many as 500 stems. Stems ovoid to cylindrical, light to bluish green, 5-40 cm (2-16 in) high, 5-15 cm (2-5.9 in) in diameter. Ribs 5-12, tuberculate or smooth edged. Central spines 1-4, not easily distinguish able from radials. Radial spines 0-22, yellow to dark, 1-7 cm (0.4-2.8 in) long, round or flattened. Flowers borne well below the stems tips, remaining open for several days, tubular funnelform, brilliant orange-red to dark red, with white throats, 3-9 cm (1.2-3.5 in) long, 2.5-7 cm (1-2.8 in) in diameter. Fruits globose to obovoid, becoming pinkish or reddish, with deciduous spines. Distribution: throughout the southwestern United States into adjacent Mexico.

The ethnobotanical use of Echinocereus triglochidiatus is mentioned in Chapter 2, under Cacti as Medicine. Several infraspecific taxa of E. triglochidiatus have been described but their status is unclear. Ferguson (1989) discussed the U.S. members of the E. triglochidiatus group and recognized only varieties triglochidiatus and mojavensis, the latter treated here as E. mojavensis. Echinocereus triglochidiatus var. inermis (syn. E. coccineus var. inermis) is listed as endangered in the U.S. Endangered Species Act though it seems uncertain whether the variety should be recognized taxonomically.

Echinocereus viereckii Wcrdermann 1934 Echinocereus morricalii Riha 1975, £ viereckii var. morricalii (Riha) N. P. Taylor 1985, £ viereckii subsp. morricalii (Riha) N. P. Taylor 1997

Echinocereus viereckii subsp. huastecensis Blum et al. 1998

Plants branching basally to form small clumps. Stems erect to sprawling, cylindrical, tapering toward the tips, yellowish

Echinocereus subinermis subsp. subinermis
Echinocereus Inermis

Echinocereus triglochidiatus to green to purple, to 50 cm (20 in) long, 2-7.5 cm (0.8-3 in) in diameter. Ribs 6-9, forming small tubercles or with even edges. Central spines 3-5, stout, erect, whitish to yellowish, to 20 mm (0.8 in) long. Radial spines 7-11, often bristle-like, whitish to yellowish, 1-9 mm (to 0.4 in) long. Flowers arising along the sides of the stems, short funnelform, magenta, 7-11 cm (2.8-4.3 in) long and in diameter. Fruits globose, green, fleshy. Distribution: northeastern Mexico in Tamaulipas and Nuevo León.

Three subspecies of Echinocereus viereckii are recognized. Subspecies viereckii has spiny stems with 6-9 tuberculate ribs but spines rarely exceeding 2.5 cm (1 in) in length; it occurs in southwestern Tamaulipas and adjacent Nuevo León. Subspecies huastecensis has 8-13 ribs and spines to 10 cm (3.9 in) long; it occurs only in Rayones Canyon, Nuevo León. Subspecies morricalii has nearly spineless stems with 6-7 nontuberculate stems; it occurs south of Monterrey in western central Nuevo León.

Continue reading here: Echinocereus viridiflorus Engelmann 1848

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