Massive succulent epiphytic shrubs, the primary stem joints terete or weakly 4-angled and 5-8 mm. thick when young, becoming stouter and terete in age, the secondary stem joints narrowly obovate-to oblong-elliptic, obtuse to rounded at the tip, broadly decurrent to a short weakly angled subpetiolar base, about 6-8 dm. long and 5-10 cm. broad, rather broadly and regularly crenate, rather thin and venose in dessication, conspicuously callose-marginate, the areoles 2-5 cm. distant, minutely puberulent, borne within the deep indentations of the crenations. Flowers nocturnal, very large and handsome, the perianth tube 12-15 cm. long, tubular, arcuate, about 6 mm. broad at the base, gradually dilating to a conical throat about 3 cm. broad at the orifice, pale greenish rose, bearing rather conspicuous persistent subfoliaceous bracts, the segments about 8-12 cm. long, slightly spreading, the outer linear-lanceolate, pale greenish rose, the inner obovate-elliptic, white; ovary oblongoid, about 3-4 cm. long, bearing many subfoliaceous bracts. Berry oblong-fusiform, usually beaked, about 10-12 cm. long and 4-5 cm. thick, slightly tuberculate at the minutely puberulent areoles, red when ripe.
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