Distribution: West of the Cascades in Washington; Alaska south to Oregon, east across northern Canada, upper Midwest, and northeastern U.S.
Habitat: Coastal bogs, swamps, lakes and streams.
Conservation Status: Not of concern
Deciduous, dioecious shrubs 0.5-1.5 m. tall, the new growth finely pubescent, becoming glabrous with age.
Leaves alternate, oblanceolate, 3-6 cm. long and up to 2 cm. broad, rounded to obtuse, entire to coarsely few-toothed above the middle, usually pubescent on both surfaces, strongly dotted with bright yellow wax glands.
Staminate flowers is bracteate catkins 1-2 cm. long, the main bract exceeding the stamens; stamens 3-5, the filaments free; pistillate flowers in dense spikes up to 1 cm. long, with flattened bractlets longer than the pistil fused to the base of the pistil, these much longer than the subtending bract, all parts strongly yellow-waxy.
Drupe barely 3 mm. long, smooth except for the wax glands.