Peniocereus johnstonii Britton & Rose

A cactus. The plant is shrubby or climbs. It has a few branches. It grows 3 m high. The roots are large and fleshy like a tuber. The stems are slender and delicate. They are 1-2 cm across. There are 3-5 ribs with a wavy edge. The spines are dark brown. There are 1-3 central spines and these are 4-8 mm long. There are 8-11 spines around these. The flowers are funnel shaped and open at night. They are white and have a scent. They are 15 cm long. The fruit are oval and 6 cm long. The fruit are edible.

It is a desert plant. It needs well drained soil but little water.

Can be grown by seedlings.