Microula polygonoides W. T. Wang

Stems branched from base, 6-11 cm tall, densely short strigose, somewhat spreading bristly; branches 3-6, gradually ascending or suberect, with short secondary branchlets to 2 cm. Lower stem leaves petiolate; upper stem leaves ± sessile, gradually reduced upward, narrowly oblong to oblong, 1-2.2 cm × 3-6 mm, abaxially densely short strigose, adaxially densely hirsute, sometimes hispid, sparsely bristly along margin, hairs discoid at base, base cuneate, apex acute. Flowers opposite leaves on lower part of stems, few borne in leaf axils and apices of branches. Pedicel less than 1 mm, to 1-2 mm in fruit, hispid. Calyx ca. 2 mm, to 3 mm in fruit; lobes narrowly triangular, hirsute outside. Corolla white, glabrous; tube ca. 1 mm; appendages lunate, ca. 0.2 mm; limb ca. 2 mm wide; lobes suborbicular. Nutlets ovoid, ca. 1.5 × 1 mm, finely tuberculate, glabrous; aperture at center. Fl. Aug-Sep.

Yunnan (Dêqên Xian).

* Hillsides; ca. 3300 m.

Microula polygonoides là loài thực vật có hoa trong họ Mồ hôi. Loài này được W.T. Wang mô tả khoa học đầu tiên năm 1980.

蓼状微孔草（学名：Microula polygonoides）是紫草科微孔草属的植物，是中国的特有植物。分布于中国大陆的云南等地，生长于海拔2,700米的地区，常生长在山地，目前尚未由人工引种栽培。