East-Himalayan Shrub-Mint
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East-Himalayan Shrub-Mint
A Native Photo: Thingnam Girija
Common name: East-Himalayan Shrub-Mint • Assamese: Kachuti-bon, পানী কুলা Pani-kula
Botanical name: Pogostemon auricularius    Family: Lamiaceae (Mint family)
Synonyms: Mentha auricularia, Mentha foetida, Dysophylla auricularia, Eusteralis auricularia

East-Himalayan Shrub-Mint is an annual herb with stems 0.4-2 m tall, prostrate basally, rooting at nodes, rising up, tip much branched, densely yellow spreading hairy. Flowers are borne in spikes 6-18 cm, about 1 cm in diameter in flower, continuous or sometimes interrupted at base; bracts ovate-lanceshaped, as long as flower, margin bristly. Sepal-cup is bell-shaped, about 1 x 1 mm, hairless, yellow glandular; teeth broadly triangular, about 1/4 as long as sepal-cup tube, margin hairy. Flowers are purplish to white, about 2.5 times as long as sepal-cup, hairless. Stamens are much protruding, protruding parts bearded. Leaf-stalks are rarely up to 1.2 cm, upper stem leaves nearly stalkless; leaf blade oblong to ovate-oblong, 2.5-7 x 1.5-2.5 cm, yellow bristly, with scattered impressed glands, base rounded to shallowly heart-shaped, rarely wedge-shaped, margin sawtoothed, tip blunt to pointed; lateral veins 5- or 6-paired, prominent below. Nutlets brown, nearly spherical, about 0.5 mm in diameter, hairless. East-Himalayan Shrub-Mint is found in wet areas in sparse forests, streamsides, at altitudes of 300-1700 m, in East-Himalaya, to China, SE Asia and Sri Lanka. Flowering: April-November.

Identification credit: Tabish Photographed in Tingri village, Imphal, Manipur.

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