Description from Flora of China
Gardneria distincta P. T. Li; G. glabra R. Brown ex D. Don; Pseudogardneria angustifolia (Wallich) Raciborski.
Shrubs, scandent, to 4 m, glabrous except for corolla. Branches terete. Petiole 3--5 mm; leaf blade oblong to elliptic, 3--7 X 1--2 cm, papery, both surfaces flat, base obtuse, apex acuminate, midvein slightly elevated on both surfaces, lateral veins 7 or 8 pairs. Flowers solitary or in dichasial cymes to 6-flowers and ca. 3 cm; peduncle 5--10 mm. Flowers 4-merous. Pedicel 5--10 mm, 2-bracteolate. Sepals ovate to triangular, ca. 1 X 1 mm. Corolla subcampanulate, outside glabrous, inside pubescent, tube 2--3 mm; lobes ovate to triangular, 3--4 X ca. 2.5 mm. Stamens inserted at base of corolla tube; filaments very short; anthers distinct, oblong, ca. 5 mm, introrse, 2-locular. Pistil ca. 3 mm. Ovary with 1 ovule per locule. Style terete; stigma apex 2-cleft. Berries globose, ca. 7 mm in diam., 1- or 2-seeded.
The type of Gardneria angustifolia in the Wallich herbarium at Kew has 4-merous flowers and is indistinct from G. distincta. Material treated as G. angustifolia in vol. 61 of Fl. Reipubl. Popul. Sin. (1992) is G. nutans.
Forests. Yunnan [Bhutan, India, Nepal].