Opuntia amyclaea Tenore 1826

Plants shrubby. Stem segments oblong to elliptical, glaucous dark green, thick, 30-40 cm (12-16 in) long. Leaves sharp pointed, red, to 4 mm long. Areoles small with one or two short bristles. Glochids brownish, falling away. Spines 1-4, rigid, diverging, almost perpendicular, whitish, usually less than 3 cm (1.2 in) long. Flowers yellow. Fruits not juicy. Distribution: Mexico. Opuntia amyclaea apparently has been cultivated since pre-Hispanic times, so its natural distribution is unclear. Some researchers believe it to be merely a variant of O. ficus-indica. It has also been widely dispersed throughout Europe.

Opuntia anacantha Spegazzini 1904 Opuntia grosseana F. A. C. Weber ex Roland-Gosselin 1904 Opuntia canina Spegazzini 1905

Opuntia kiska-loro Spegazzini 1905, Piatyopuntia kiska-loro (Spegazzini) F. Ritter 1980,0. anacantha var. kiska-loro (Spegazzini) R. Kiesling 1998

Opuntia retrorsa Spegazzini 1905, Piatyopuntia retrorsa (Spegazzini) F. Ritter 1980,0. anacantha var.retrorsa (Spegazzini) R. Kiesling 1998

Opuntia utikilio Spegazzini 1905,0. anacantha var. utikilio (Spegazzini) R. Kiesling 1998 Opuntia bispinosa Backeberg 1962

Plants shrubby, commonly prostrate, occasionally ascending to clambering, forming adventitious roots, forming low clumps to 60 cm (24 in) high and 2.5 m (8.2 ft) wide. Stem segments flat, narrow, often lance shaped to elliptical, shiny dark green, 15-40 cm (5.9-16 in) long, 3.5-7 cm (1.4-2.8 in) wide. Areoles small. Spines 2-4, sometimes absent, unequal, whitish, 4-6 cm (1.6-2.4 in) long. Flowers yellowish orange to orange, to 4 cm (1.6 in) long, 3-6 cm (1.2-2.4 in) in diameter. Fruits red to violet-purple, pubescent, to 5 cm (2 in) in diameter. Distribution: northern Argentina and Bolivia.

Four varieties of Opuntia anacantha are recognized. Variety anacantha has dark green stem segments and yellow flowers; it occurs in the southern Gran Chaco region of Argentina. Variety kiska-loro has light green stem segments and orange flowers; it occurs in the far north of Argentina into Bolivia. Variety retrorsa also has light green stem segments and yellow flowers, but it occurs in grassland farther south. Variety utikilio has elliptical, green stem segments and yellow flowers; it occurs in the vicinity of Tucuman, Argentina.

Opuntia antillana Britton & Rose 1918 Opuntia domingensis Britton & Rose 1923

Plants shrubby, nearly prostrate, forming large clumps more than 1 m (3.3 ft) broad. Stem segments obovate, narrow

Loros Antillanos
Opuntia anacantha var. retrorsa

basally, easily detached, 7-20 cm (2.8-7.9 in) long. Leaves conical to awl shaped. Areoles large, with brown wool. Glo-chids numerous, yellow. Spines 3-6, unequal, stout, round in cross section, yellow, becoming gray or white with age, 1-6 cm (0.4-2.4 in) long. Flowers yellow, becoming reddish with age, 5-7 cm (2-2.8 in) long. Fruits reddish purple, to 4 cm (1.6 in) long. Distribution: Caribbean.

Opuntia apurimacensis (F. Ritter) R. Crook&Mottram 1995 Platyopuntia apurimacensis F. Ritter 1981

Plants shrubby, semiprostrate to erect, to 1 m (3.3 ft) high. Stem segments somewhat pointed apically, 15-20 cm (5.97.9 in) long, 6-10 cm (2.4-3.9 in) wide, 1-2 cm (0.4-0.8 in) thick. Areoles on small protuberances, oval to round. Glo-chids brownish yellow, to 3 mm long. Spines 1-2, thin, whitish, erect, straight, 3-7 mm (to 0.3 in) long. Flowers citron yellow, 6.5-7 cm (2.6-2.8 in) long. Fruits bright redor greenish yellow, to 6 cm (2.4 in) long. Distribution: Apurimac, Peru.

Continue reading here: Opuntia arcei Crdenas 1956

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