White Bauhinia

Scientific Name : Bauhinia variegata L. var. candida (Aiton) Buch.-Ham.
Common Name : White Bauhinia
Chinese Name : 白花洋紫荊, 白花羊蹄甲, 大白花
Family : CAESALPINIACEAE
Local distribution status : Exotic species

Anecdotes on plants

Origins South China, native to Xishuangbanna, Yunnan. Also distributed in Malaysia, Vietnam, Laos, Thailand, Myanmar and India.
Applications Blossoming with snow-white flowers and a light fragrance, White Bauhinia is a popular option for street tree and gardening.
Furthermore, as reported in Flora Reipublicae Popularis Sinicae and Flora of Guangdong, its flowers can be consumed as vegetables.
Variety White Bauhinia (白花洋紫荊 in Chinese) is also named as “White Camel's Foot (白花羊蹄甲)” in Chinese. So what are the relationships of this species with Hong Kong Orchid Tree (洋紫荊), Purple Camel’s Foot (紅花羊蹄甲) and Camel’s Foot Tree (宮粉羊蹄甲)? The names of these four species look tangled and complicated, but their relationships are comparatively easy to be understood.
From the scientific names of White Bauhinia, we know the species is a variety which is mutated from Camel’s Foot Tree (Bauhinia variegata L.). The main differences are shown on its flowers - petals become white, and the purplish red stripes on the upper petals turn green. We can simply comprehend White Bauhinia is an albino of Camel’s Foot Tree. Hence, the variety name is given as “candida” in its scientific name, which means pure white.
While Hong Kong Orchid Tree (Bauhinia x blakeana Dunn) is the hybrid of Purple Camel’s Foot (Bauhinia purpurea L.) and Camel’s Foot Tree.

Traits for identification

Growing habit Deciduous Tree.
Height To 15 m.
Stems Bark of trunk brown, relatively smooth. Branches stretch broadly, crooked in zigzag shape.
Leaves Subleathery, broadly ovate to suborbicular in outline, base cordate to truncate, shallowly bilobed at the apex. Apex of lobes obtuse or comparatively pointed. Shaped like sheep hoofs.
Flowers Petals 5, subequal, obovate to oblanceolate, white. The upper petal is comparatively broader with conspicuous green and yellow stripes. Usually flowers prior to emergence of leaf.
Fruits Legume, blackish brown when mature, strap-shaped, flattened.
Flowering period March in Hong Kong.
Fruiting period April in Hong Kong.
Remarks

Scientific name above is based on Hong Kong Herbarium website : https://www.herbarium.gov.hk/en/hk-plant-database/plant-detail/index.html?pType=species&oID=11498

Scientific names from other databases
Flora of China : Bauhinia variegata var. candida Voigt
Plants of the World Online : Bauhinia variegata L.

Reference