Wolffia columbiana H.Karst.

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Flora of the Boise Front, Idaho, USA
Wolffia columbiana
Ada Co.: Eagle Island State Park, Boise River in
Eagle, E end of central oxbow lagoon; 43.687°N
116.395°W, ca 770 m.
Locally common, forming solid floating cover on
water, [photographed]
Barbara Ertter 24196	25 April 2021
04393630