Morangaya is a monotypic genus of ribbed, usually small to medium-sized, cylindrical shaped cacti, that is native to north western Mexico.

The stems are cylindrical and taper toward the tips, up to 2 m (6 ft 7 in) long or more, 2.5–4 cm (1–2 in) in diameter.

It has 1 central spine, 1–2.5 cm (0–1 in) long, with 6 to 10 radials more or less radiating, on young areoles.

The areoles of the tube and ovary, have white or yellowish wool and chestnut bristly/silky spines.

[6] The genus and the species of Morangaya pensilis (K.Brandegee) G.D.Rowley were circumscribed by Gordon Douglas Rowley in Ashingtonia vol.1 on page 44 in 1974.

[5] The species suffers from various damages to its native habit,[9] including fragmentation, illegal collection and trade, and also land use changes, especially to farming and cattle ranching, which have impacts on the habitats.