Pereskia grandifolia

Pereskia grandifolia (rose cactus; syn. Cactus grandifolius Link, Rhodocactus grandifolius (Haw.) F.M.Knuth, Cactus rosa Vell.) is a cactus native to the Northeastern Brazil restingas. This plant is often used as a medicinal plant and an ornamental plant. In addition, it has edible leaves. Although Pereskia grandifolia is a cactus by classification, it takes the form of a shrub or small tree, 2–5 metres (6.6–16.4 ft) in height. It has a grayish-brown trunk up to 20 cm in diameter. The areoles are rounded cushion-shaped grayish or brownish tomentum; on the twigs they are 3–7 mm diameter and up to 12 mm on the main trunk. The spines range from black to brown, the number at each areole gradually increasing with age; new twigs can have spineless areoles, while the trunk areoles may have up to 90 spines, each 2-6.5 cm long.