Shrubs 50-120 cm tall. Old branches yellow-gray or gray, tortuous, often inclined-spreading; herbaceous branchlets of current year gray-green, slender; joints 1-3 cm. Leaves easily deciduous, linear, 2-5 mm; ocrea light yellow, not united to leaf. Pedicel 2-4 mm, jointed below middle. Flowers dense, 2-4 at leaf axils. Tepals green with broad white margin, broadly elliptic, 1.2-1.8 × 1-1.6 cm. Fruit narrowly ellipsoid, 1.2-1.8 cm. Achenes narrowly ellipsoid, not or slightly coiled; ribs 4, each with 2 wings; wings light yellow or yellow-brown, submembranous, finely veined. Fl. Apr-May, fr. May-Jun. 2n = 18*.
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