Food Plants International - Plant Fact Sheets Rosenbergiodendron formosum - Blackberry Jam Fruit
Edible portion: Fruit
A shrub. It grows 4 m high. The fruit is a round berry 2-3 cm long by 1.6 cm wide. The fruit are green but turn yellow outside and black inside and are sweet. There are 2 rows of seeds
It is a tropical plant. It suits the hot, wet tropical lowlands. It grows on sandy ridges in the coastal plain. It also grows in dry savanna and along roadsides. It can grow in acid soils. It needs a USDA hardiness zone 10.