Original Description:The Cactaceae 2
p.134 - Britton & Rose (1920)
Plants tall, 3 to 6 meters high, with numerous strict branches, slightly glaucous when young, dark green in age; ribs 6 to 8, broad at base, obtuse, with deep horizontal depression above the areole; spines often wanting, when present few, 3 to 7, unequal, the longest 1 to 2 cm long, dark yellow to brown; flower-buds pointed; flowers very large, 19 to 23 cm long, born near the top of the branches, night-blooming, very fragrant; outer perianth-segments brownish red; inner perianth-segments oblong, white; filaments long, weak, greenish; style greenish below, white above; stigma-lobes linear, yellowish; ovary covered with black curled hairs; axils of scales on flower-tube and fruit bearing long black hairs.
This icon appears next to images that have been 3rd party verified. Click Here to learn more. Click any picture below to enlarge.