Original Description:The Cactaceae 2
p.100 - Britton & Rose (1920)
Plant 3 to 5 meters high, with woody trunk, much branched; branches consisting of short stout joints, 15 to 60 cm long, 8 to 15 cm in diameter; ribs 7 or 8; areoles large, brown-felted; young spines white, brown, black, or variegated, about 20, 1 to 2 cm long, except on the old trunk and here 12 cm long or more; flowers slender, 7 to 8 cm long, opening in the early evening; outer perianth-segments narrow, 1 to 1.5 cm long, reddish, erect; inner perianth-segments small, white except at the spreading tips; filaments numerous, short, included; fruit globular to oblong, 8 to 9 cm long, covered with clusters of weak spines, deciduous when ripe, red without, white within.
Very common on the flats near Guayaquil
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