Plants sometimes forming clones by layering. Stems: branches red-brown or brownish, not or weakly glaucous, (highly glossy), pubescent to glabrescent; branchlets yellow-brown or red-brown, sparsely pubescent. Leaves: stipules absent or rudimentary on early ones; petiole shallowly grooved adaxially, 3-8 mm, (sometimes glands present distally), pubescent adaxially; largest medial blade narrowly elliptic, narrowly oblong, or oblanceolate 25-65 × 7-15 mm, base cuneate or convex, margins strongly revolute, entire or crenulate, (glands submarginal or epilaminal), apex acute, convex, or acuminate, abaxial surface glaucous (sometimes obscured by hairs), pilose or densely long-silky or villous, (midribs yellow, prominent, glabrous or pubescent), hairs (white, sometimes also ferruginous), straight or wavy, adaxial slightly glossy, glabrous or sparsely pubescent, especially midrib, (hairs white, sometimes also ferruginous); proximal blade margins entire; juvenile blade yellowish green, sparsely to moderately densely long-silky abaxially, hairs white. Catkins flowering as leaves emerge; staminate stout or subglobose, 10-21.5 × 6-10 mm, flowering branchlet 1-8 mm; pistillate densely to moderately densely flowered, stout to subglobose, 11-20.5(-25 in fruit) × 5.5-17 mm, flowering branchlet 1-13 mm; floral bract tawny, brown, or bicolor, 0.7-1.2 mm, apex rounded, abaxially hairy, hairs straight. Staminate flowers: (abaxial nectary 0-0.6 mm), adaxial nectary oblong, narrowly oblong, or square, 0.4-1 mm, (nectaries usually distinct, sometimes cupulate); filaments distinct; anthers purple turning yellow, 0.4-0.5 mm. Pistillate flowers: adaxial nectary narrowly oblong, oblong, or square, 0.3-1.1 mm; ovary pyriform, beak gradually tapering to styles; ovules 12-13 per ovary; styles 0.4-0.9 mm. Capsules 2-4 mm. 2n = 76.
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Bushy shrub 5-17 dm, often depressed at base; twigs short, leafy, full of lf-scars, reddish-brown, puberulent when young; stipules none, or minute, and caducous; petioles to 6 mm; lvs narrowly elliptic-oblanceolate, 2–5 cm, to 1 cm wide, acute, subrevolute and subentire to closely crenulate, dark green with impressed veins above, glaucescent and ± long-sericeous to glabrate beneath, the primary lateral veins numerous, wide-angled, closely parallel; catkins with the lvs, 1–2.5 cm, on leafy peduncles 0.5–1.2 cm; staminate fls biglandular; scales 1–2 mm, brownish-black, thinly villous; frs lance-ovate, 2–4 mm, densely short-sericeous; pedicels 1–2 mm; style 0.5 mm; 2n=76. Moist ravines and alpine slopes; mts. of n. Vt., n. N.H., and n. Me. to Nf. and Lab. A hybrid with no. 20 [Salix planifolia Pursh] is S. ×grayi C. K. Schneid.
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