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IPM1023, Missouri Weed Seeds

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Missouri Weed Seeds

Rhamnaceae (Buckthorn family)

Broadleaf plant family

The buckthorn family has three genera found in the state; Rhamnus spp. or buckthorn is the more common with three species.

Buckthorn, Carolina Buckthorn, Carolina
Rhamnus caroliniana

Buckthorn, lance-leaved Buckthorn, lance-leaved
Rhamnus lanceolata

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


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IPM1023 Missouri Weed Seeds | Page 40 | University of Missouri Extension