GUAMACH0, SIICHÍ, SUPÍ, SUSPIRE, SUSPIRO Rhodocactus guamacho (F. A. C. Weber) F. M. Knuth 1935 Pereskia colombiana Britton & Rose 1919, Rhodocactus colombianus (Britton & Rose) F. M. Knuth 1935
Plants treelike or shrubby, 4-8 m (13-26 ft) tall; trunks usually short, 1-2 m (3.3-6.6 ft) high, 25 cm (9.8 in) thick, brownish gray, smooth. Leaves variable in shape and size, narrow obovate to elliptical, 2-7 cm (0.8-2.8 in) long, 1-6 cm (0.4-2.4 in) broad, petioles 1-5 mm long, venation pseu-dopalmate to pinnate, lateral veins 3-4 and diverging at angles. Areoles often knoblike spur shoots on older branches. Spines 0-2 on twigs, horizontally extended, 0.5-2 cm (0.20.8 in) long. Spines 50-60 or more on trunks, 3-5 cm (1.2-2 in) long. Flowers borne laterally, solitary or in inflorescences of only two or three, sessile, appearing before the leaves, yellow, 2-5 cm (0.8-2 in) in diameter. Fruits globose to obovate, 1.5-2 cm (0.6-0.8 in) in diameter, green, fleshy. Distribution: drier regions of Colombia and Venezuela, from sea level to 800 m (2600 ft); possibly also the Dutch Antilles. Fruits of Pereskia guamacho are edible (Chapter 2, under Cacti as Food).
Pereskia hórrida (Kunth) A. P. de Candolle 1828 Cactus horridus Kunth 1823, Rhodocactus horridus (Kunth) F. M.
Knuth 1935 Pereskia humboldtii Britton & Rose 1923 Pereskia vargasii H. Johnson 1952 Pereskia vargasii var. longispina Rauh & Backeberg 1956 Pereskia vargasii var. rauhii Backeberg 1956, P. humboldtii var. rauhii (Backeberg) Leuenberger 1986, P. hórrida subsp. rauhii (Backeberg) Ostolaza 1998
Plants shrubby or small treelike, 2-6 m (6.6-20 ft) tall. Roots spindle shaped to subglobose. Distal twigs often markedly zigzag. Leaves elliptic to obovate, 1.5-4 cm (0.6-1.6 in) long, 1-2.5 cm (0.4-1 in) broad, petioles inconspicuous, blade thick, venation inconspicuous, midribs prominent below, lateral veins 0-2. Areoles often bearing long, white hairs on older stems. Spines 1-4 on twigs, straight. Spines as many as 10 or more on trunks, very unequal in length, 1-4 cm (0.4-
1.6 in) long, often contorted. Flowers borne terminally and laterally in clusters of two to six, dull red, orange-red, brownish orange, or white, 5-15 mm (0.2-0.6 in) in diameter. Fruits soft berries, 5-6 mm (0.2 in) in diameter, green, becoming black at maturity. Distribution: Peru.
Two subspecies of Pereskia horrida are recognized. Subspecies horrida has smooth twigs that lack papillae, and flowers that are dull red to orange-red, or brownish orange but rarely white; it occurs in dry forest and brushland in the dry valleys of the Maranon at elevations of 500-760 m (16002500 ft). Subspecies rauhii has twigs with stout papillae, and white flowers; it occurs in the dry valleys of the Maranon at elevations of 500-2100 m (1600-6900 ft). Sometimes the two subspecies are sympatric at lower elevations.
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