西藏沟酸浆 xi zang gou suan jiang

Herbs, to 1 m tall, sparsely villous. Stems erect or basally prostrate, stout, quadrangular, unbranched, rooting from lower nodes. Petiole ca. 3 cm lower on stem, upper leaves sessile; leaf blade orbicular, 3-5 cm, papery, base rounded, margin double serrate, apex rounded to emarginate, veins palmate. Flowers solitary in upper leaf axils. Pedicel 2-3.5 cm, nearly as long as leaf blade. Bracteoles absent. Calyx broadly campanulate, ca. 1 cm, apex truncate; lobes broad, to 1 mm, upper lobe largest, apex apiculate. Corolla golden yellow, ca. 2 cm; lower lip longer than upper, middle lobe larger than others; upper lip erect, lobes suborbicular. Style exserted from corolla. Fl. Sep.

* Shady wet places; below 3700 m. S Xizang (Lhasa Shi).

The combination Erythranthe tibetica (P. C. Tsoong & H. P. Yang) G. L. Nesom (Phytoneuron. 2012-39: 41. 2012) appeared after publication of the family treatment for the Flora of China.