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ground plum
noun
- a prostrate milk vetch, Astragalus crassicarpus, of the legume family, growing in the prairie regions of North America.
- its plum-shaped fruit.
ground plum
noun
- a North American leguminous plant, Astragalus caryocarpus, with purple or white flowers and green thick-walled plumlike edible pods
- the pod of this plant
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Word History and Origins
Origin of ground plum1
An Americanism dating back to 1855–60
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