Family: Acanthaceae
Synonyms: Flemingia grandiflora Roxb. ex Rottl., Pleuremidis grandiflora (Roxb. ex Rottl.) Raf., Thunbergia adenophora W.W. Sm., Thunbergia chinensis Merr., Thunbergia cordifolia Nees, Thunbergia lacei Gamble
Common name: Bengal Clock Vine, Bengal Trumpet Vine, Blue Sky Flower, Blue Sky Vine, Blue Trumpet Vine
Assamese: Kukua loti
Bengali: নীল লতা Neel lota
Chinese: 大花山牵牛, 大花老鸦嘴
Gujarati: Tumakhlung
Hindi: नील लता Neel lata
Kenya: cheptereret
Khasi: Jermi khnong, Syntiew jyrni chankhlaw
Malay: patok tuwauh
Mizo: Vakohrui, Zawngafian, Vako
Russian: Тунбергия_крупноцветковая
Swedish: Klockthunbergia
Tanzania: bangiliko, enyoru, wankula
Thai: สร้อยอินทนิล
Vietnamese: Dây bông xanh
Description: Woody vine, twining, 10-15 m in length. Stems cylindrical, up to 2.5 cm in diameter, striate, puberulous; cross section of the stem with the pith hollow and the xylem tissue with wide rays. Leaves opposite; blades 15-26 × 13-30 cm, ovate or broadly ovate, chartaceous, the apex acute or acuminate, the base cordiform or subcordiform, the margins lobate-dentate, ciliate; upper surface dark green, shiny, puberulous, with slightly prominent venation; lower surface light green, ull, glabrous or puberulous, with prominent venation; petioles 6-12 cm long, sulcate. Flowers arranged in axillary cymes; pedicels robust, cylindrical, 4-6 cm long; bracts light green, membranaceous, ovate, ca. 4 cm long, covering the calyx and the corolla tube. Calyx green, in the form of a ring, 4-5 mm long; corolla lilac or white, infundibuliform, with 5 lobes, the tube 6-7 cm long, light yellow inside, narrow at the base, the limb 6-7 cm in diameter. Capsule ca. 3 cm long, subglobose at the base, the upper half in the form of a beak, dehiscent in two halves.
Leaves decoction drunk for stomach complaints and indigestion; leaves paste used as poultice in skin diseases, cuts; juice of leaves with leaves of Thunbergia coccinea given in stomach pain. Sap from the stem given in eye troubles. Roots, leaves and whole plant decoction applied to snakebites. [CRC World Dictionary of Medicinal and Poisonous Plants]
Therapeutic uses: The leaves are commonly used against snake-bite. The petioles are removed and the juice of 30 to 50g of pounded fresh leaves is used to massage the site of the snake-bite, from the top downwards ; the residue is applied topically. The leaves are used on their own or in combination with Abelmoschus moschatus leaves and Clausena lansium seeds. Poulticing with a moistened fine powder of dried leaves is also prescribed. [Medicinal Plants in Viet Nam]
15 Published articles of Thunbergia grandiflora