''Persicaria glabra'' is a species of flowering plant

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to North America and Eurasia.

Description

It is similar in appearance to ''P. longiseta'' and ''P. lapathifolia''. The plant is a medium-sized annual herb with red, swollen joints and lanceolate leaves. The inflorescence is a dense raceme of small pink or white flowers, the fruit a flattened black nut.

References

Flora of North America Perennial plants glabra {{Polygonaceae-stub