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MSU Turf — your lawn weed identification & research resource

Polygonaceae (Smartweed) Family

Stems usually have swollen nodes; leaves alternate and usually subtended by a sheathing stipular growth (ochrea, oh-kree-ah); flowers with petal-like sepals and usually in a slender cluster or head; ovary compressed or three-angled.

Curly Dock
Rumex crispus

Prostrate Knotweed
Polygonum aviculare


Red Sorrel
Rumex acetosella

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