13. Zygophyllum mucronatum Maximowicz, Mélanges Biol. Bull. Phys.-Math. Acad. Imp. Sci. Saint-Pétersbourg. 11: 175. 1881.
蝎虎霸王 xie hu ba wang
Herbs, perennial, 15-25 cm tall. Roots woody. Stems numerous, tender, much branched, prostrate or spreading, with ribs. Stipules minute, triangular, margin membranous and fringed. Leaves with 4 or 6 leaflets; petiole and rachis with flat wings sometimes as wide as leaflets; leaflet blades linear to linear-oblong, 8-10 × 1-3 mm, base obtuse, apex rounded and mucronate. Flowers axillary, solitary or paired. Pedicel 2-5 mm. Sepals 5, narrowly obovate to oblong, 5-8 × 3-4 mm. Petals 5, orangish red at base and white at apex, obovate, slightly longer than sepals. Stamens longer than petals; anthers orange, oblong-spherical; appendages ca. 1/2 as long as filament. Capsule lanceolate to cylindric, pendulous, with ridges, 5-locular, with 1-4 seeds per locule, apex acuminate to acute. Seeds yellowish brown, ellipsoid to ovoid, surface with dense cavities. Fl. Jun-Aug, fr. Jul-Sep.
Hilly slopes, plains, alluvial fans, terraces, sandy soil, loess hills; 800-3500 m. Gansu, W Nei Mongol, Ningxia, Qinghai, Xinjiang [Mongolia].