Aloiampelos decumbens, formerly Aloe decumbens, the Langeberg rambling-aloe, is a sprawling, succulent plant that is endemic to the fynbos vegetation of the Langeberg Mountains near Swellendam and Riversdale in the Western Cape, South Africa.

This plant is decumbent - as its name suggests - and its long, thin branches sprawl for up to 1 meter along the ground and over the rocky outcrops where it grows.

Aloiampelos decumbens survives in small, isolated pockets growing in coarse sandstone sands, on cliffs and steep slopes in the Langeberg mountain range of the Western Cape, South Africa.

Of the eight isolated sub-populations, one exists as far west as the vicinity of Swellendam, and one population is protected in the Boosmansbos Wilderness Area.

[2] This plant is sometimes described as being merely an isolated subspecies of Aloiampelos gracilis which occurs much further east in the area around Port Elizabeth.