6. Porandra D. Y. Hong, Acta Phytotax. Sin. 12: 462. 1974.
孔药花属 kong yao hua shu
Herbs perennial, climbing. Rhizomes absent. Stems long, branched, climbing, basally woody. Leaves alternate. Inflorescences borne near apex of branches, penetrating leaf sheaths, each a sessile head usually with several flowers. Flowers actinomorphic. Sepals free, imbricate, carinate. Petals free, pink, green, or white, elliptic or oblong. Stamens 6, all fertile, subequal; filaments lanate; anther locules oblong or deltoid-ovoid, connate for most of their length, dehiscent by apical pores. Ovary 3-loculed; ovules 2 per locule. Capsule 3-valved, ellipsoid or ovoid-globose, trigonous. Seeds 2 per valve, cylindric, trigonous, rugose, reticulate; hilum linear.
Three species: China, Laos, Thailand, Vietnam; three species (two endemic) in China.
Porandra is similar and related to Amischotolype from which it differs in having stems long, branched, climbing, and basally woody, and anther locules dehiscent by apical pores rather than longitudinal slits.