Stellaria bistyla Y. Z. Zhao

Herbs perennial. Stems densely tufted, diffuse, purplish, subterete, 10--30 cm tall, dichotomously branched, densely glandular hairy. Leaves oblong-lanceolate, 1--2 cm × 2--10 mm, margin hairy or glabrous, midvein conspicuous, raised abaxially, impressed adaxially, base narrowed, apex acute. Flowers in terminal dichotomous cymes; bracts lanceolate, 1.5--3 mm, both surfaces glandular hairy. Pedicel 0.3--2 cm. Sepals 5, oblong-lanceolate, 4--5 × ca. 1 mm, outside shortly hairy or glabrous, margin broadly membranous, apex acute. Petals 5, obovate, ca. 3 × 2 mm, shorter than sepals, apex 2-cleft to 1/4--1/3 length, base cuneate. Stamens 10, ca. 3 mm. Ovary globose, 1-loculed; ovules 4 or 5; styles 2(or 3), 2--3 mm. Capsule obovoid, ca. 2.5 mm, shorter than persistent sepals, 4(or 6)-valved. Seeds 1(or 2), black-brown, ovoid to obovoid, 1.5--1.8 mm, tuberculate. Fl. Jul, fr. Aug.

Nei Mongol, Ningxia.

* Dry gullies; 2000--2600 m.

Stellaria bistylata W. Z. Di & Y. Ren.

Stellaria bistyla là loài thực vật có hoa thuộc họ Cẩm chướng. Loài này được Y.Z. Zhao miêu tả khoa học đầu tiên năm 1985.

二柱繁缕（学名：Stellaria bistyla）为石竹科繁缕属的植物，是中国的特有植物。分布于中国大陆的宁夏、内蒙古等地，生长于海拔2,000米至2,600米的地区，多生于干沟石缝中，目前尚未由人工引种栽培。