Woolly Leucas is a softly desnely wooly-haired perennial herb found on stony slopes in the Himalayas at altitudes of 700-3000 m.Erect, perennial herbs, with several branches from woody root-stock; branches obtusely 4-gonous, densely woolly or subsilky with erect or spreading hairs. Leaves opposite, 1.5-4 x 0.6-1.7 cm, narrowly ovate-lanceolate or oblong to ovate-oblong, acute or obtuse, crenate-serrate, rounded or slightly narrowed at base, thick, tomentose above, silky beneath, sometimes darker above in dry specimens, veins impressed above, upper ones sometimes sessile, rest shortly petioled. Flower-whorls axillary, many-flowered, densely woolly; bracts setaceous, densely hairy, much shorter than calyx. Calyx-tube 5-9 mm long, tubular, straight, ribbed, densely tomentose outside, pubescent or hairy within in upper one-third part; mouth truncate; true villi absent; sometimes hairs protrude beyond the mouth are confused for villi which are much shorter than teeth; teeth 10, alternately short and long, ca. 1.5 mm long, triangular-subulate. Corolla-tube included or little exserted, hairy outside; upper lip densely bearded with white hairs, smaller than lower. Nutlets ca 1.5 x 1 mm, oblong, 3-angular, truncate at apex, tuberculate, brown; seeds not hairy at the ends.
Flowering: April-September.
content source: https://indiabiodiversity.org/species/show/229771
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