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Dioecious climbing or twining shrubs, the wood with large porous vessels. Leaves spirally arranged, entire or coarsely lobed (Mal.), generally minutely papillose-tubercled on both faces, nerves palmate to pinnate. Flowers sessile, arranged in heads or umbels;


Asia-Tropical: Assam (Assam present); Borneo present; India present; Laos (Laos present); Malaya (Peninsular Malaysia present); Philippines (Philippines present); Sulawesi (Sulawesi present); Sumatera (Sumatera present); Thailand (Thailand present), Burma? present, SE. Asia present, Western Ghats present
About 8 spp. in SE. Asia (India: Western Ghats; Assam, Burma?, Thailand, Laos); in Malesia: 4 spp. (Sumatra, Malay Peninsula, Borneo, Philippines, Celebes). .


GRIFF. 1844 – In: Calc. J. Nat. Hist. t. 12
MEISN. 1969 – In: Blumea. p 229
SLEUM. 1968 – In: Taxon. p 449
MEISN. – In: Pl. Vasc. Gen. p 109
SLEUM. 1969 – In: Taxon. p 479