阿拉善沙拐枣 a la shan sha guai zao

Calligonum przewalskii Losinskaja.

Shrubs 1.5-3 m tall. Old branches gray or yellow-gray; herbaceous branchlets of current year gray-green. Leaves 3.3-4 mm, lanceolate, apex acute. Pedicel 2-3 mm, slender. Flowers 2 or 3 in axis. Tepals reddish, broadly elliptic or subglobose, 2-3 mm. Fruit broadly ovoid, rarely subglobose, 1.8-2.6 × 1.7-2.5 cm. Achenes ovoid, coiled, very permanently ribbed; bristles in 2 or 3 rows on each rib, dense or slightly sparse, longer than width of achenes, slender, flat at base, slightly inflated, free or slightly united, secondarily 2- or 3-branched; apically spreading. Fl. May, fr. Jun-Aug.

* Mobile sand dunes, deserts; 500-1500 m. Gansu, Nei Mongol.