Mezoneuron sumatranum is a leguminous species first described by William Roxburgh. No subspecies are listed in the Catalogue of Life. This and a number of similar species are called "cat's claw" lianas: recognisable by raised spines on stems and found in tropical forests of the Indian subcontinent (including Sri Lanka), Indochina, Malesia and Papua New Guinea.
References Verdcourt, B., 1979 A Manual of New Guinea Legumes. Office of Forests, Lae, PNG Rudd, V.E., 1991 Flora of Ceylon 7: 34-107. Caesalpinioideae ILDIS World Database of Legumes
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