Branches yellow-green, more or less glabrous. Leaves thin, lanceolate to oblanceolate, rarely oblong-lanceolate (=f. latifolia), more or less white-silky when young, later glabrescent, minutely serrulate. Leaves at base of catkins more or less entire. Bracts greenish to yellowish. Capsule sessile or on a pedicel almost as long as nectar gland.