Bauhinia ferruginea  Roxb. var. ferruginea
Description
Stipules  on flowering shoots early caducous; indumentum  of inflorescence axis and buds usually ferrugineous; bracts  pubescent, lanceolate, 5-10 mm; bracteoles  smaller.  
Distribution
This seems to be the rarer variety, known only from S Thailand, Penang I., Perak, Trengganu, and Selangor, i. e. the northern part of the distribution area only.