Shrubs, erect to arching, 5–50(-60) dm. Stems: long shoots (predominant in moist or shaded conditions) (4–)10–200 cm, 1st year strongly angled or pleated, green to reddish, glabrate to ?off-white or gray? downy or tomentose, rarely sessile-or stipitate-glandular, 2d or 3d year epidermis exfoliating, periderm shiny maroon or reddish, aging into light to dark gray bark; short shoots (not predominant) 0.5–2 cm, ?developing more frequently in xeric or exposed conditions, rarely in moist or shaded ones?; water-sprout shoots uncommon, 20–150 cm. Leaves: petiole 0.5–3 cm, distinct, sometimes ± obscured by decurrent leaf base; blade maximal width usually proximal to middle, membranaceous to chartaceous, rarely coriaceous, ?margins serrate?; long shoots (usually predominant): blade ± ovate, rhombic, or ± trullate, 1–10 × 0.5–8 cm, membranaceous to chartaceous, base truncate to cuneate, margins serrate, secondary teeth frequent, primary and secondary veins slightly to strongly protruding abaxially, venation percurrent, apex acute or obtuse, abaxial surfaces pilose to villous, sometimes sessile-glandular, adaxial glabrate or pubescent to hirsute, eglandular, rarely sessile-glandular; short shoots (usually not predominant): in fascicles of 3–8, blade ± ovate, base truncate, apex obtuse, or slightly ovate to obovate or rhombic, base cuneate, decurrent, apex acute, 1–8 × (0.5–)1–7 cm, margins serrate, secondary teeth frequent or rare, sharply acute, small, 1–3 mm, primary and secondary veins usually strongly protruding abaxially, venation percurrent, abaxial surfaces glabrate to densely tomentose or villous, sometimes sessile-glandular, adaxial glabrate to thinly puberulent, rarely sessile-glandular; water-sprout shoots: blade (3–)4–8 × 3–7 cm. Inflorescences 10–100+-flowered, 2–20 × 2–15 cm; branches usually tomentose to villous, sometimes glabrate, sometimes sessile-glandular; bracts absent, sometimes subtending branches (more frequent on basal branches, reducing distally), rarely subtending peduncles; bracteoles 0.5–1.5 mm. Flowers 2–6 mm diam.; hypanthium 3–5 mm diam.; sepals triangular-ovate to elliptic-ovate, 1–2 mm, apex acute, abaxially puberulent to tomentulose, usually eglandular; petals white, sometimes pink-tinged, rarely pink, ± ovate, 1.5–2 mm; stamens equal to or longer than petals, 2–3.5 mm; carpels 1–1.5 mm. Achenes beige to white, sparsely to densely hirsute, edges and remnant style usually hispid-ciliate, glands 0–15 per face, sessile or stipitate.
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A shrub. It loses its leaves during the year. It grows about 2 m tall. The flowers are in fluffy, creamy white panicles. The flowers are very small. The fruit are small, dry and flattened.
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