Shrubs, 3-5 m. Stems: branches gray-brown or red-brown, hairy or glabrous; branchlets red-brown, densely villous. Leaves: stipules absent or rudimentary on early ones, rudimentary or foliaceous on late ones (apex acute); petiole 1-6 mm, long-silky adaxially; largest medial blade (sometimes hypostomatous, glands submarginal), linear, lorate, narrowly elliptic, or narrowly oblanceolate, 40-120 × 7.5-16 mm, 3-8.5 times as long as wide, base cuneate or convex, margins flat, remotely spinulose-serrulate, apex acuminate, acute, or caudate, abaxial surface not glaucous, densely to sparsely long-or short-silky or villous, hairs appressed or spreading, straight or wavy, adaxial dull, sparsely long-silky or villous; proximal blade margins entire; juvenile blade yellowish green, very densely long-silky or villous abaxially. Catkins: staminate 38-45 × 6-7 mm, flowering branchlet 25-45 mm; pistillate densely flowered, slender, 40-73 × 6-7 mm, flowering branchlet 20-32 mm; floral bract (sometimes brown), 2.4-3.2 mm, apex acute or rounded, entire or irregularly toothed, abaxially hairy, hairs wavy. Staminate flowers: abaxial nectary 0.4-1 mm, adaxial nectary narrowly oblong, oblong, or flask-shaped, 0.5-1.1 mm, nectaries distinct; filaments hairy on proximal 1/2; anthers 0.8-1.2 mm. Pistillate flowers: adaxial nectary oblong, square, ovate, or flask-shaped, 0.6-1 mm, longer than stipe; stipe 0.2-0.7 mm; ovary pyriform, villous or long-silky, beak abruptly tapering to styles; ovules 24-36 per ovary; styles 0.1-0.7 mm; stigmas flat, abaxially non-papillate with pointed tip, or slenderly cylindrical, 0.4-1 mm. Capsules 4-5.5 mm.
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