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Definition of Hoary alison
1. Noun. Tall European annual with downy grey-green foliage and dense heads of small white flowers followed by hairy pods; naturalized in North America; sometimes a troublesome weed. 
Exact synonyms: Berteroa Incana, Hoary Alyssum
Group relationships: Berteroa, Genus Berteroa
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Berteroa, Genus Berteroa
Generic synonyms: Herb, Herbaceous Plant



