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Spiked Snake Jasmine
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Spiked Snake Jasmine
P Native Photo: Angela Pangkam
Common name: Spiked Snake Jasmine
Botanical name: Rhinacanthus spiciformis    Family: Acanthaceae (Acanthus family)

Spiked Snake Jasmine is a newly discovered (2020) perennial herb, 30-50 cm tall, with stems round, basally prostrate and rooting at nodes, then obliquely rising up, hairless. Leaves are opposite, leaf-stalk 0.5-1.5 cm long, hairless; leaf blade elliptic, 8-16 x 4-8 cm, wedge-shaped at base, with entire margin, tapering at tip, with both surfaces hairless but covered with linear cystoliths; secondary veins 7-10 on each side of midvein. Showy flowers are borne at branch ends, in unbranched or trifurcate-branched spikes, 15-25 cm long, carried on flower-cluster-stalk 4-7 cm long, velvet-hairy, axis velvet-hairy. Sepal-cup is 5-lobed almost to the base; sepals linear, equal, 3.5-4 x 0.9-1.1 mm, green, densely covered with glandular pubescence. Flowers are 4-5 cm long, white or pink with purple markings; tube cylindrical, 3.3-3.5 cm long, finely velvet-hairy; limb two-lipped; upper lip linear-lanceshaped, unlobed, about 1.5 cm long, tapering at tip; lower lip about 2 cm, 3-lobed, with elliptic lobes, about 8 x 7 mm. Stamens are 2, inserted at base of flower throat, filaments about 7 mm long, anthers ca 3 mm long, style about 3.5 cm long, stigma 2-lobed. Spiked Snake Jasmine is found in Vietnam, and Arunachal Pradesh, at elevations of 190-550 m.

Identification credit: Tabish Photographed on the banks of Siang River, East Siang distt., Arunachal Pradesh.

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