IPM1023 Missouri Weed Seeds | Page 47 | University of Missouri Extension

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IPM1023, Missouri Weed Seeds

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Missouri Weed Seeds

Verbenaceae (Vervain family)

Broadleaf plant family

Of about 90 known genera, only three occur in the state. Most prevalent are the vervains, with seven species, most commonly encountered throughout Missouri.

Vervain, blue Vervain, blue
Verbena hastata

Vervain, hoary Vervain, hoary
Verbena stricta

For an idea of relative seed size, each photo contains a millimeter ruler. The distance between increments is 1 mm.

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