Microula sikkimensis (C. B. Cl.) Hemsl.

Stems erect or ascending, not crowded, frequently branched from base, or not branched, 6-65 cm tall, bristly, sometimes sparsely strigose. Basal and lower stem leaves long petiolate, broadly lanceolate to ovate or narrowly ovate, 4-12 × 0.7-4.4 cm, base rounded to broadly cuneate, apex acute to acuminate, rarely obtuse; upper stem leaves gradually reduced upward, short petiolate to sessile, narrowly ovate to broadly lanceolate, short strigose, abaxially bristly along midvein, adaxially sparsely bristly, hairs discoid at base, base attenuate, margin entire. Inflorescences terminal, crowded, 0.5-1.5 cm wide, sometimes slightly elongated to ca. 2 cm; basal bracts leaflike, other bracts 0.5-2 mm. Pedicel densely short strigose. Calyx ca. 2 mm, to 3.5 mm in fruit, parted nearly to base; lobes linear to narrowly triangular, sparsely pubescent and long hispid outside, margin densely pubescent and short strigose inside. Corolla blue or blue-purple; tube 2.5-3.8 mm, glabrous; appendages low trapeziform or lunate, ca. 0.3 mm, glabrous or short pubescent; limb 5-9(-11) mm wide, glabrous; lobes suborbicular. Nutlets ovoid, ± dorsiventrally compressed, 2-2.5 × ca. 1.8 mm, with fine tubercles and short hairs; aperture in middle and upper parts of abaxial surface, narrowly oblong, 1-1.5 mm; attachment scar at center of adaxial surface. Fl. May-Sep.

Himalaya (Nepal to Bhutan), S. Tibet, W. China.

Gansu, Qinghai, SW Shaanxi, W Sichuan, SE Xizang, NW Yunnan [Bhutan, India, Nepal, Sikkim].

3500-4600 m

Hillside meadows, thickets, forest margins, river banks, fields; 2900-4500 m.

Anchusa sikkimensis C. B. Clarke in J. D. Hooker, Fl. Brit. India 4: 168. 1883; Anoplocaryum limprichtii Brand; Tretocarya sikkimensis (C. B. Clarke) Oliver.

Microula sikkimensis là loài thực vật có hoa trong họ Mồ hôi. Loài này được (C.B. Clarke) Hemsl. mô tả khoa học đầu tiên năm 1898.

微孔草（学名：Microula sikkimensis）为紫草科微孔草属的植物。分布于锡金以及中国大陆的陕西、西藏、四川、甘肃、青海、云南等地，生长于海拔2,000米至4,500米的地区，多生于灌丛下、高山草地、林边或河边多石草地，目前尚未由人工引种栽培。