Persicaria Mill.

Stipules entire when young, pale brown Persicaria

Flowers in spikes or spike-like racemes; if dense then more than 1 cm long

Stems erect or ascending. Spikes often paniculate.

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Angles of branches and midveins of leaves ± lined with reversed bristles. Leaves ovate to lanceolate, bases hastate or sagittate, petiolate. Stems weak and straggling

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Stems and leaves glabrous or ± softly hairy