Native to (or naturalized in) Oregon:
- Broadleaf deciduous shrub, to 3-6 ft (0.9-2 m) high and similar width, often with a short single stem; branches flexible with very tough bark, smooth. Leaves alternate, simple, elliptic to obovate, 3-7 cm long, tip obtuse, base wedge-shaped (cuneate), margin entire, light green above, glaucous and hairy below when young, short petioled; fall color golden yellow. Flowers pale yellow, male and female parts (perfect), without petals, short stalked, in dense axillary spikes. Fruit ellipsoid, 8 mm long, pale green or reddish; maturing and dropping in late spring or early summer.
- Sun to shade, best in moist to wet soils with plenty of organic matter. Symmetrical shape and dense in the sun, whereas in the shade it is irregular in shape with sparse and spreading branches. Often used for naturalizing or as a shrub border.
- Hardy to USDA Zone 2 Native range from New Brunswick to Ontario and south to Florida and Missouri.
- palustris: marsh-loving.