Bauhinia occurs as genus in the subfamily Caesalpinioideae of the large flowering plant family Fabaceae. A genus was known as fallowing a Bauhin brothers, Swiss-French botanists.

Numbers of metal money, indigen to northern India, Vietnam or southeastern China, are widely deep-rooted in the tropics when "orchid trees". Most common list include: purple mountain ebony, mountain ebony, unfortunate human's orchidaceous plant.

Extra than 200 metal money come known, including: Bauhinia acuminata Bauhinia blakeana Bauhinia championi Bauhinia corymbosa Bauhinia galpinii Bauhinia glauca Bauhinia monandra Bauhinia purpurea Bauhinia tomentosa Bauhinia variegata

de:Bauhinia pt:Unha de Vaca