Rumex crispus

Plants perennial, occasionally biennial, glabrous or very indistinctly papillose normally only on veins of leaf blades abaxially, with fusiform, vertical rootstock. Stems erect, branched distal to middle, 40–100(–150) cm. Leaves: ocrea deciduous, rarely partially persistent at maturity; blade lanceolate to narrowly lanceolate or lanceolate-linear, normally 15–30(–35) × 2–6 cm, base cuneate, truncate, or weakly cordate, margins entire to subentire, strongly crisped and undulate, apex acute. Inflorescences terminal, occupying distal 1/2 of stem, dense or interrupted at base, narrowly to broadly paniculate, branches usually straight or arcuate. Pedicels articulated in proximal 1/3, filiform, (3–)4–8 mm, articulation distinctly swollen. Flowers 10–25 in whorls; inner tepals orbiculate-ovate or ovate-deltoid, 3.5–6 × 3–5 mm, base truncate or subcordate, margins entire or subentire to very weakly erose, flat, apex obtuse or subacute; tubercles normally 3, rarely 1 or 2, unequal, at least 1 distinctly larger, more than (1–)1.5 mm wide. Achenes usually reddish brown, 2–3 × 1.5–2 mm. 2n = 60.

3-6 hours of sun per day, with protection from intense mid-day sun

Rumex Crispus

Rumex crispus

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