Invasive water primrose is known to grow in the lower Willamette Valley primarily in slow-moving waters and surrounding riparian zones. It creates masses of persistent roots that spread quickly. Water primrose is a top priority species in the 4-County CWMA boundary and all are encouraged to report any sightings to the Oregon Invasive Species Hotline,

Learn more about water primrose.

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Buddleia davidii

Brown flowerhead of Phragmites with green reeds

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Phragmites australis ssp. australis

False indigo_by Andrey Zharkikh

Desert false indigo

Amorpha fruticosa