Dillenia grandifolia
simpoh
Ten species in Malaya. Cut wood hisses loudly, twigs leave prominent horse-shoe shaped leaf scars. Large tree, deciduous after dry weather, buttresses merge into stilts. Flowers without petals. All states but Perlis. Sumatra, Borneo.
Dillenia philippinensis
simpoh
Philippines. (J.J. Dillenius, 1684-1747, German botanist, professor at Oxford). Flowers large, solitary, petals falling first day, fruit covered by thick fleshy edible sepals that make cough syrup & shampoo. Bark yields a red dye.
Dillenia reticulata
simpoh gajah
Malaya, Sumatra, Borneo. To 40m ht & 3m girth. Flowers, 7cm, at end of leafless twig or with new leaves, petals yellow. Leaf base broadly tapering to round or heart shaped; 16-45 prs secondary nerves & fine tertiary network, raised on under surface, covered with velvety hairs.
Dillenia suffruticosa
simpoh air
Large evergreen shrub to 7m, often forming thickets. Common in secondary forests, esp. swampy ground, most in the south. Flowers continuously, each open for just a day. Fruit ripe in 36 days.
Dillenia sp.
simpoh
Ten species in Malaya. Bark rich orange brown, large white flowers, edible fruits, dispersed by elephants or water. From India to W. Malesia, often near streams.