Rubus pectinellus

Rubus pectinellus, commonly known as atibulnak, is a species of brambles in the rose family. It is native to Japan, southern China, Taiwan, and the Philippines. It usually grows in forests and valleys at elevations of 700 to 3000 m. Atibulnak fruits are edible, either raw or cooked, and have a pleasant subacid flavor. The leaves are also eaten as a vegetable in the Philippines.

Description
Atibulnak is a small trailing woody shrub, usually around 0.5 to 1 m long. The leaves are either heart-shaped or with three lobes and have a rough and hairy texture with serrated margins. The leaves are around 3 to 6 cm in diameter. They are borne alternate on the stems. Both the leaves and the stems are covered with small spines. It has white flowers around 2 cm in diameter. These bear fruits around 1.4 to 1.6 cm in diameter which turn bright red when ripe.