Description from Flora of China
Herbs(?) scandent, ca. 80 cm tall, with ± densely grayish strigose axial parts. Roots woody, ca. 1.5 cm in diam. Stems slender, ± terete. Petiole 3-4 mm or absent; leaf blade ovate to ovate-deltate, 3-4.5 X 1.5-2.5 cm, strigose, base cordate, margin entire or slightly undulate, apex obtuse or retuse. Pedicel ca. 8 mm. Flower solitary, axillary; bracts 1 or 2, linear-lanceolate, 0.8-1.2 cm x 1.5-2 mm, densely strigose abaxially, persistent. Sepals linear-lanceolate, ± equal; outer 3 ca. 20 X 2-3 mm, sparsely strigose abaxially, apex acute; inner 2 narrower. Corolla red, tubular-funnelform, ca. 7 cm, sparsely strigose outside; limb ca. 2.7 cm in diam., slightly lobed. Stamens and pistil included; stamens inserted at middle of corolla tube; filaments unequal, 1.2-1.5 cm, 2 filaments longer, base sparsely ciliate; anthers oblong, ca. 2.5 mm. Ovary conical. Style ca. 3.9 cm; stigma capitate, 2-lobed. Capsule enclosed by calyx, globose, ca. 4 mm in diam. Seeds 2, black-brown, ovoid, compressed. Fl. and fr. Jul.
* Wasteland, dry hot valleys, grassy slopes; ca. 1000 m. W Yunnan (Baoshan Xian).