Opuntia atrispina Griffiths 1910

DARK-SPINED PRICKLY PEAR

Plants shrubby, low, spreading to form clumps to 2 m (6.6 ft) wide, sometimes with erect stem segments to 60 cm (24 in) high. Stem segments fairly small, nearly round, light green, 10-15 cm (3.9-5.9 in) in diameter. Areoles often spineless toward bases of segments. Glochids yellow, later brownish. Spines 2-4, on upper areoles of segments, some spreading, flattened, dark brown with black bases. Flowers yellow, becoming orange with age. Fruits reddish purple. Distribution: south Texas.

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