SAme thing on the wetland I hunt this year.....I think it's because the wetland hasn't drawn down the last 2 years due to good summer rains. In regards to use as duck food...I didn't see any ducks using those areas last year on the wetland I hunt. They would land and feed in the smartweed and barnyard grass.
I would think with the acreage they take up and minimal food production I could produce a few thousand pounds of moist soil plant seeds in the same area. So while there may be some benefit it's nothing compared to annual plants for attracting puddle ducks.
However, one benefit in a pinch a dew cover lily pad can make excellent toilet paper. Don't ask me how I know!
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