Microula efoveolata W. T. Wang

Stems branched from base, 6-19 cm tall, densely spreading hispid. Basal and lower stem leaves petiolate, spatulate to narrowly obovate, 4-6 cm × 5-9 mm, base attenuate, apex subacute to rotund; upper stem leaves gradually reduced upward, sessile, narrowly oblong to narrowly elliptic, 1.6-3.7 cm, sparsely short strigose. Inflorescences terminal, few flowered; 2 lowermost bracts elliptic, 6-10 mm, other bracts triangular to narrowly elliptic, 1.5-3 mm; branching points of upper stem with a solitary long pedicellate flower. Flowers crowded. Calyx ca. 2.5 mm, to 4.8 mm in fruit, parted nearly to base; lobes narrowly triangular, short hispid and sparsely hirsute outside. Corolla blue; tube ca. 2 mm, glabrous; appendages low trapeziform, ca. 0.3 mm, apex short pubescent; limb ca. 4 mm wide, glabrous; lobes suborbicular. Nutlets slightly bilaterally compressed, abaxially rhomboid-triangular, ca. 1.8 × 1 mm, center longitudinally ribbed, without aperture; lateral surfaces ca. 1.2 mm wide, with few fine tubercles and extremely short hairs; attachment scar above base of adaxial surface. Fl. Jun-Jul.

Sichuan (Muli Xian).

* Alpine meadows; ca. 3400 m.

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

无孔微孔草（学名：Microula efoveolata）是紫草科微孔草属的植物，为中国的特有植物。分布于中国大陆的四川等地，生长于海拔3,400米的地区，一般生长在山坡草地，目前尚未由人工引种栽培。