Purple Camel's Foot

Scientific Name : Bauhinia purpurea L.
Common Name : Purple Camel's Foot
Chinese Name : 紅花羊蹄甲, 羊蹄甲, 洋紫荊
Family : CAESALPINIACEAE
Local distribution status : Exotic species

Anecdotes on plants

Origins South China. Also distributed throughout the Indochina Peninsula, India and Sri Lanka.
Applications The entire plant of Purple Camel’s Foot are medicinally valuable, so it has traditionally been adopted into folk medicines throughout various regions, including China, India, Sri Lanka, Malaysia and Pakistan. Recently, some more scientific researches revealed the therapeutic functions of Purple Camel’s Foot leaves, which includes, but is not limited to, anti-inflammatory, analgesic, antioxidant and wound-healing activity. However, the root bark is extremely toxic and should not be ingested.
Relationship with Hong Kong Purple Camel’s Foot is the female parent of Hong Kong Orchid Tree (Bauhinia × blakeana Dunn), which is the City Flower of Hong Kong. The two species, together with Camel's Foot Tree (Bauhinia variegata L.), look similar to each other, but can be easily differentiated. The lobe apex on the leaves of Purple Camel’s Foot is usually more pointed (acute), whereas those of the other two are more rounded. The petal of Purple Camel’s Foots is narrower and without stripes, while petals from other two are wider with stripes. The Purple Camel’s Foot blossoms during October to December, while the flowering period of the Camel’s Foot Tree falls in March, and the Hong Kong Orchid Tree blossoms throughout November to March.

Traits for identification

Growing habit Evergreen Tree.
Height To 10 m.
Stems Bark of trunk greyish, smooth.
Leaves Thick papery, suborbicular in outline.
Leaf base shallowly cordate. Leaf apex shallowly 2-lobed, apex of lobes slightly acute, seldomly rounded.
Shaped like sheep hoof.
Flowers Petals 5, with long claw (the narrowed base of petal), subequal, light pink to crimson, base sometimes white, narrowly lanceolate. The upper petal oblanceolate.
Fruits Legume ligulate, blackish brown. Valves woody, split and twist to eject seeds when mature. With around 10 seeds.
Seeds Suborbicular, flatten, dark brown.
Flowering period October to December in Hong Kong.
Fruiting period December to March 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=8335

Scientific names from other databases
Flora of China : Bauhinia purpurea Linnaeus
Plants of the World Online : Bauhinia purpurea Linn.

Reference