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Noun: hoary alyssum
  1. 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
    - hoary alison, Berteroa incana

Derived forms: hoary alyssums

Type of: herb, herbaceous plant

Part of: Berteroa, genus Berteroa

Encyclopedia: Hoary alyssum