Soft, slender, glabrous climbers with solitary, pedunculate flowers exserted from short cladode fascicles. Rhizome cylindrical, bearing long, firm, terete roots placed close together. Stems and branches laxly curved, thin, shiny brown; branchlets short, bearing the small cladode fascicles and solitary, exserted lateral flowers. Bracts subtending branches and branchlets innocuous, membranous, base obtuse or acute. Cladodes 25-51 cm a fascicle, filiform, somewhat curved, unequally long, up to 7 mm long, apiculate, rough-skinned(when magnified); the subtending bract membranous, small. Flowers solitary, pendulous, numerous placed along lower part of young branchlets, (the immature cladodes placed in upper half); tepals narrowly oblong, ±5 mm long, white with a dark midrib, forming a loose tube below; upper half recurved at anthesis; stalk usually recurved, ±5 mm long, articulated below middle. Stamens erect, exserted, forming a loose tube, anthers deep yellow. Ovary with 8 ovules in each locule; ovoid; style just exserted above stamens, stigma apical, small. Berry ±5 mm in diameter, brownish yellow, transparent when ripe; seed ±3 mm in diameter, black with a rough skin.
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Soft, slender, climber, stems thin, shiny brown, spines poorly developed. Cladodes 10-20 in fascicles, filiform, curved, usually covering the branches. Flowers solitary, nodding, axillary, tepals in a loose tube below, upper half recurved, filaments spreading in upper half. Superficially resembling A. fasciculatus.
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