Crassula tetragona is a succulent plant native to Southern Africa.

It is popularly named the "miniature pine tree" among ornamental plant enthusiasts, for its popular use as a "pine tree" in Bonsai.

It has woody stems with brown bark, with crossed pairs of leaves.

The plant features terminal inflorescence ending in white flowers that come up in summer.

The species was first described by Linnaeus in 1753 in his book Species Plantarum[1] There are six recognized subspecies, originally named by Tolken,[2] as follows: These plants are usually used as an ornamental, although they are believed to have been used as a medicinal plant by Thunberg, who wrote: "Crassula tetragona, somewhat of an stringent nature, boiled in milk, in the quantity of a handful, is used as a remedy for diarrhea.