Description from Flora of China
Aeschynanthus novogracilis W. T. Wang.
Stems ca. 30 cm, puberulent or spreading short hispid. Leaves opposite; petiole 1.5-2 mm; leaf blade elliptic to narrowly obovate, 0.8-2 X 0.4-1.1 cm, leathery, adaxially puberulent, glabrescent, drying wrinkled, abaxially puberulent, not punctate, base cuneate to rounded, margin entire, apex acute to rounded; lateral veins invisible. Cymes axillary, 1-flowered; peduncle absent; bracts deciduous. Pedicel ca. 8 mm, puberulent. Calyx green, 5-sect from base; segments narrowly triangular, ca. 4 X 1 mm, outside puberulent. Corolla red, central abaxial lobe yellow spotted, ca. 2.5 cm, outside puberulent, inside glabrous, mouth strongly oblique; limb distinctly 2-lipped; adaxial lip reflexed, ca. 4 mm; abaxial lip ca. 8.5 mm, 3-parted, central lobe oblong, lateral lobes oblique, deltoid. Stamens exserted; filaments 1.4-1.8 cm; anthers coherent in pairs at apex, ca. 2 mm; staminode ca. 6.5 mm. Pistil ca. 1.7 cm; ovary glabrous. Style ca. 5 mm, puberulent. Capsule 9-12 cm. Seeds with 1 hairlike appendage at each end, appendages 1.5-2 cm. Fl. Oct-Nov, fr. Apr.
On trees in forested valleys; 1300-1700 m. S Yunnan [Bhutan, N Myanmar, Sikkim, Thailand, N Vietnam].