Shrubs, 10–30 dm. Stems erect to ascending, branched. Leaves: petiole 3–5 mm; blade ?bicolorous?, elliptic to obovate, 3–10 × 0.5–4 cm, chartaceous, base cuneate, margins serrate distally from middle, venation pinnate craspedodromous, secondary veins prominent, apex acute to obtuse, abaxial surface lanate to tomentose, glabrous, or pubescent, adaxial glabrous. Inflorescences mostly terminal, conic panicles, [5–]8–25 × 3–6[–10] cm ?height 2–4 times diam.); branches glabrous or glabrescent to tomentose. Pedicels 1–3 mm, glabrous or tomentose. Flowers 2–4 mm diam.; hypanthia hemispheric, 1 mm, abaxial surface tomentose, adaxial glabrous; sepals ovate, 1 mm; petals light to dark pink, ovate to obovate, 1–2 mm; staminodes 0; stamens 25–35, 2–3 times petal length. Follicles oblanceoloid, 2.5–3 mm, ?shiny?, glabrous, ?adaxial suture sometimes ciliate?.
Stream banks, moist woodland margins, wet meadows, fens, swamps, roadsides; at elevations up to 2,500 metres. Almost always found in wet soils in redwood and red fir forests.
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