Description from Flora of China
Vandellia scutellariiformis (T. Yamazaki) T. Yamazaki.
Herbs. Roots fibrous. Stems slender, much branched, 20-36 cm, channeled, pubescent, base creeping and rooting from nodes. Petiole ca. 5 mm; leaf blade triangular-ovate, 1.6-2.5 X 0.8-1.5 cm, abaxially hairy along veins, adaxially glabrous, base broadly cuneate, subtruncate, or subcordate, margin with 6-10 pairs of triangular acute teeth, apex acute to subobtuse. Racemes 6-10-flowered, lax, axillary; bracts linear-lanceolate, ca. 5 mm, sparsely hairy. Pedicel 1-1.8 cm, gradually shorter upward, sparsely hairy. Calyx campanulate, 5-9 mm, lobed to base; lobes linear-lanceolate, outside sparsely short hairy, margin entire, apex acuminate. Corolla to 1.3 cm; lower lip 3-lobed, lobes broadly ovate, middle lobe larger and longer than upper lip; upper lip 2-lobed, lobes narrow. Filaments of anterior stamens with a clavate appendage. Stigma lamellate. Capsule ellipsoid-oblong, shorter than persistent calyx.
* Taiwan (Tainan Xian).