Oroxylum indicum L Vent

[From Greek, oros = mountain, xylos = wood and from Latin, indicum = from India]

Common names: Trumpet flowers, broken bones, midday marvel; bulai, begak, bongelai kayu, bonlaijohar, juar (Malay); arala (among 40 other Sanskrit names); achi, vanga adanthay (Tamil); nuc nac, nam hoang ba, poe ta lop (Vietnamese).

Uses: In China, the seeds of Oroxylum indicum (L.) Vent. are used to assuage liver and stomach discomfort, and to heal ulcers and boils. In Burma, Vietnam and the Philippines, the bark is used to treat dysentery and rheumatism. In Malaysia, a decoction of the leaves is drunk to assuage stomach discomfort, treat rheumatism and to heal wounds. In Thailand, the fruits are consumed as vegetables, whereas the stem bark is used to treat arthritis.

Oroxylum Indicum Vent Leaves

Fig. 332. Oroxylum indicum (L.) Vent.

Fig. 332. Oroxylum indicum (L.) Vent.

Physical description: It is a tree which grows to a height of 12 m by the rivers, roads and in the swamps, geographically spanning India and Southern China. The tree has a very special look. The bark is light brown, fissured, soft, exudes a green juice and often shows several corky lenticels. Leaves: 90cm-1.5m, 2-3-pinnate and with opposite pinnae. The rachis is very stout and cylindrical. The petiolules are 6mm-1.5cm long. The folioles are 6.3 cm-12.5 cm x 3.8 cm-10 cm, ovate or elliptic, acuminate, glabrous, and round at the base. The flowers are numerous with a foxy stink and are arranged in large upright racemes at the apex of the bole. The racemes are 30 cm-60 cm long. The calyx is 2.5 cm x 2 cm, ephemeral, leathery, campanulate and glabrous. The corolla is lurid-purple on the outside and greenish on the inside, 10 cm long, succulent and develops 5 lobes. The corolla lobes are 3.8 cm long and crisped at the margin. The andrecium consists of 5 stamens, of which a single one is shorter than the rest. The filaments are hairy at the base. The fruits are 6 mm-1.2 m x 5 cm-9 cm x 8 mm, tapering, straight, with flat capsules containing several seeds. The seeds are 7cm x 3.5 cm and winged (Fig. 332).

Pharmaceutical interest: Oroxylin A (5, 7-hydroxy-6-methoxyflavone) and chrysin and ursolic acid characterized from the fruits of Oroxylum indicum (L.) Vent. are antioxidant in the xanthine-xanthine oxidase assay system (Jiwajinda S et a/., 2002). Note that Oroxylum indicum (L.) Vent. contains aloe-emodin, which is a well-known laxative and antileukaemic anthraquinone (Kupchman SM etal, 1976).

Oroxylin A

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  • renĂ© reinhard
    Can oroxylum indicun vent cure diabetics?
    3 years ago

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