Strobilanthes oligocephala

Much-branched undershrub 30-50cm. Stems decumbent and rooting below, eventually erect, pubescent or glabrous. Leaves unequal, elliptic or narrowly obovate, falcate, 4-13 x 1.5-4cm, abruptly acuminate, base attenuate, serrate, green above, whitish beneath, both surfaces glabrous, pilose or pubescent on veins beneath and margins only, sessile above, petiolate below; petioles 0-2cm. Flowers in pedunculate, shortly elongate heads, terminal on main stem or on simple or 2-3 branched, short, usually leafless branchlets arising from axils of upper leaves; sometimes a few flowers in opposite pairs below main head; peduncles glabrous or pubescent. Outer bracts ovate-suborbicular, 7-10mm, acute, mostly glabrous, greenish when young, soon scarious, son deciduous; inner bracts similar but reduced, ± oblong, with more hair; bracteoles absent. Calyx 11-19mm, glandular-pilose, lobes linear (-oblong), acuminate, one slightly longer than others. Corolla blue or white, 3.5-5cm, sparsely or moderately glandular-pilose, tube gradually widened to c 1cm, bent at mouth. Capsule 13-14mm, glandular-pilose in upper part.

I think this is Strobilanthes oligocphala T. Anderson ex C.B. Clarke because of the elongate inflorescence, pubescent corolla, glandular calyx BUT it does not show the typical subterminal inflorecence of that species. The leaf shape (slightly falcate) looks good but I can’t see the underside of the leaf. In S. oligocephala it is characteristically pale, even whitish.

References:

Catalogue of Life  The Plant List Ver.1.1  Tropicos  IPNI
 GBIF (High resolution specimens) POWO  Flora of China  FOC illustration  Annotated checklist of Flowering plants of Nepal  Bhutan Biodiversity Portal