10. Zygophyllum rosowii Bunge, Linnaea. 17: 5. 1845.
石生霸王 shi sheng ba wang
Herbs, perennial, 10-20 cm tall. Roots to 3 cm thick, woody. Stems much branched, spreading, glabrous, with ribs. Stipules distinct, ovate, 2-3 mm, white membranous. Leaves with 2 leaflets; petiole 2-7 mm; leaflet blades ovate, rotund, or oblong, 0.8-2.5 × 0.5-0.8 cm, apex acuminate to obtuse. Flowers axillary, solitary or paired. Pedicel 5-6 mm. Sepals elliptic to obovate-oblong, 5-8 × 2-3 mm, margin membranous. Petals 5, white but orange at base, obovate, nearly same size as sepals. Stamens orange, longer than petals; appendages oblong, apex toothed or entire. Capsule linear-lanceolate, 1.8-5 × 0.5-0.7 cm, pendulous, slightly curved or falcate, apex acuminate. Seeds grayish blue, oblong-ovoid. Fl. Mar-Jun, fr. Jun-Jul.
Gravel hills, alluvial gravel slopes, rocky steep slopes, rocky areas with gravel and sand; 400-1000 m. Gansu, Nei Mongol, Xinjiang [Kazakhstan, Kyrgyzstan, Mongolia, Tajikistan].
