Description from Flora of China
Asparagus mairei H. Léveillé (Jan 1913 and Jul 1913, not 1910); A. vaniotii H. Léveillé; A. yunnanensis H. Léveillé.
Herbs dioecious. Roots with tuberous part. Stems erect, to 1 m, angled, densely cartilaginous denticulate; branches strongly angled, cartilaginous denticulate except apically and on branchlets. Cladodes usually in fascicles of 5--10, 3--5(--8) × 0.3--0.5 mm, subterete, slightly flattened, irregularly grooved, generally not cartilaginous denticulate. Leaf spur indistinctly spinescent. Inflorescences developing after cladodes. Male flowers: solitary or in clusters of 2 or 3; pedicel ca. 2 mm; perianth yellowish green, narrowly campanulate, ca. 2 mm; filaments adnate to perianth segments for ca. 1/2 their length. Berry red, 5--6 mm in diam., usually 1- or 2-seeded. Fl. May--Jul, fr. Aug.
* Forests, grassy slopes along valleys and streams; 1300--3500 m. Guizhou, Sichuan, Yunnan.