howmany species are in the genus Bauhinia?
Bauhinia. Bauhinia (pronounced /boÊËhÉªniÉ/) is a genus of more than 200 species of flowering plants in the subfamily Caesalpinioideae of the large flowering plant family Fabaceae, with a pantropical distribution. The genus was named after the Bauhin brothers, Swiss â French botanists.Many species are widely planted in the tropics as orchid trees, particularly in northern India, Vietnam and southeastern China. In the United States of America, the trees grow in Hawaii, coastal California, Texas, Louisiana, and Florida.any species are widely planted in the tropics as orchid trees, particularly in northern India, Vietnam and southeastern China. In the United States of America, the trees grow in Hawaii, coastal California, Texas, Louisiana, and Florida.