Mezoneuron pubescens is the type species of 'cat's claw' lianas in its genus; it was placed previously in the genus Caesalpinia and remains in the tribe Caesalpinieae. This species is recorded from Malesia and Indo-China. with no subspecies.Plants of the World Online: Mezoneuron pubescens Desf. (retrieved 8 January 2026)
References Hattink, T.A, 1974 Reinwardtia 9:1-69. A rev.of Malesian Caesalpinia... Larsen, K. et al, 1980 In: Flore du Cambodge, du Laos et du Vietnam, Vol 18.A.
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