Family: Acanthaceae
Chinese: 肾苞草
Description: Diffuse herbs, branches glandular hairy. Leaves in unequal pairs, 3-5 x 2 cm, elliptic, acuminate at both ends, nerves 4 pairs; petiole 2.5 cm long. Spikes axillary, 2 x 1 cm, 1-sided; bracts paired, 6 x 7 mm, orbicular, hairy and long ciliate along the margins; bracteoles absent. Flowers small, scarcely seen above the bracts; calyx lobes 5, unequal; corolla 8 mm long, bilabiate, tube slender, lobes obtuse, white with pink spots; stamens 4, filaments united into an adnated sheath below. Capsule 3 mm long, glabrous; seeds 4, compressed.