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Erect Knotweed

Polygonum erectum L.

Polygonaceae (Smartweed Family)



▲ ▼ young plants

▲ ▼  young plants

▲ ▼ close-up of stems and leaves




*      usually more of a turf or vegetable crop weed; summer annuals

*      inflorescences in the axils of leaves, very tiny

*     other small-leaved knotweed species may occur occasionally—

o   erect knotweed:  similar to prostrate knotweed, but with more rounded to rounded-oval shaped leaves

*      annual knotweeds controlled by tillage (same precautions as smartweeds), some with pre-emergent herbicides or more with post-emergent herbicides


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