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false madwort

Scientific Name: Berteroa

Family: Brassicaceae

Category: Dicot

Growth:

Duration:

Other Names:

       

Hoary False Madwort (Berteroa incana)

Also known as hoary alyssum, hoary false alyssum, and simply false madwort, Berteroa incana is a flowering plant belonging to the mustard family.

Considerations for Pets

  • This plant produces small, elliptic, short-hairy fruit pods measuring 5-7 mm long.
  • It is reported as invasive in some regions.

Considerations for Children

  • This plant produces small, elliptic, short-hairy fruit pods measuring 5-7 mm long.
  • It is reported as invasive in some regions.

Taxonomy and Nomenclature

  • Scientific Name: Berteroa incana (L.) DC.
  • Family: Brassicaceae (also known as Cruciferae or Mustard family)
  • Rank: Species
  • Synonym: Alyssum incanum L.

Common Names

  • Hoary Alyssum
  • Hoary False Alyssum
  • Hoary False Madwort
  • False Madwort
  • Hoary Alison

Distribution and Habitat

  • Native Origin: Europe
  • U.S. Nativity: Exotic
  • Grows in fields, preferring full sun and the ability to thrive in rocky and poor soil.

Ecological Role

  • Reported as invasive in Colorado (CO) and Wyoming (WY). Its invasive nature can impact local ecosystems.

Morphological Characteristics and Growth Habits

  • An annual to short-lived perennial forb, growing on stiff, leafy stems.
  • Typically grows from 10 to 28 inches (approximately 25 to 71 cm) tall. Some sources claim it grows up to 48 cm tall.
  • Flowers are small, white with deeply notched petals and arranged in rounded clusters.
  • Leaves are alternate, small, and hairy.
  • Fruit pods are elliptic, short-hairy, and 5-7 mm long.

Related Species

  • Berteroa mutabilis (Roadside False Madwort)
  • Berteroa obliqua
  • Berteroa orbiculata
  • Berteroa stricta

Further Information

  • USDA PLANTS Database (Symbol: BERTE)
  • NIISS.org species profile
  • Stevens County Weed Board: http://www.co.stevens.wa.us/weedboard/