Kali monoptera (Bunge) Lomon.

Riversides, sandy slopes. Nei Mongol, Qinghai, Xinjiang, Xizang [Mongolia, Russia (Altai)].

Herbs annual, 10–30 cm tall. Stem branched from base, densely hispid; branches alternate, horizontally spreading, lowest ones subopposite. Leaves yellow-green, filiform, semiterete, 1–1.5 cm × 0.5–1 mm, hispid, base slightly expanded, apex spinose mucronate. Inflorescence spikelike, or sometimes flowers borne throughout plant; bracts lanceolate, longer than bractlets. Perianth segments narrowly ovate, membranous, hardened and leathery in fruit, only 1 segment abaxially winged, others with a toothlike process, all glabrous; portion of segment above wing or process connivent with others and forming a plane surface, apex acute. Stamens longer than perianth; anthers ca. 0.3 mm; appendage very small. Style very short; stigmas filiform, 4–6 × as long as style. Seed horizontal, ca. 1 mm in diam. Fl. Jul–Aug, fr. Aug–Sep.

Annuals, very branched from the base. Stems prostrate or ascending, green, often with reddish stripes, papillate or almost glabrous. Leaves very densely arranged, linear, 10.0–25.0 × 0.4–1.0 mm, leaf mucro ~1.0 mm long. Flowers in axillary clusters and arranged in the main inflorescence. Flower clusters (located below the main inflorescence) consist of one flower supported by a bract and two bracteoles, sometimes additional bracts are present in the clusters; bracts and bracteoles half fused or less; perianth segments membranous, r-shaped with their tips appressed to each other, not hardened, not forming a conus, with pinkish or white, small or hardly noticeable wing-like tubercles in the flexure, one segment (closest to the bract) with small tuberculate (up to 1.0 mm) projection; styles with stigmas ca. 1.0 mm long; fruits 1.0–1.2 mm, depressed roundish to ovoid. Flowers in the main inflorescence with a free bract and two bracteoles (slightly shorter than bract), hermaphrodite; perianth segments free, membranous, r-shaped, horizontally appressed and not forming a conus above the flexure; wing-like appendages vertically located and clearly unequal (the most prominent, entire to lobate < 1.5 mm long, wing develops on the segment closest to the bract (rarely in other positions), other segments have smaller entire tubercles up to 1 mm or no projections at all); the whole diaspore with the perianth wings 1.5–2.3 mm across; anthers 0.3–0.4 mm long; styles with stigmas ~1.0 mm; fruit 1.1–1.4 mm, lenticular. Seeds with horizontally or obliquely orientated embryo.

See Fig. 48.

Salsola monoptera là loài thực vật có hoa thuộc họ Dền. Loài này được Bunge miêu tả khoa học đầu tiên năm 1879.

单翅猪毛菜（学名：Salsola monoptera）为苋科猪毛菜属的植物。分布于西伯利亚、蒙古以及中国大陆的青海、西藏等地，生长于海拔3,300米至4,800米的地区，多生在河滩和山麓砂砾地，目前尚未由人工引种栽培。