Hoary alyssum

(Berteroa incana)

  • 1 - 3' tall
  • Blooms June to October
  • Flowers white with four notched petals, clustered at stemtips
  • Leaves oval- to lance-shaped, alternate; stem leaves attached and point upward
  • Leaves, stems, sepals, and seed pods have tiny star-shaped hairs
  • Reproduces only by seed
  • Seeds can remain dormant and viable for several years in persistent seed bank
  • Toxic to horses if forage is greater than 30% contaminated

Known Distribution


There are few occurrences of this species documented in Colorado. View the knownNorth American Distribution Map.
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