Common names (selected) English: hoary alyssum, hoary alison, false hoary madwort, hoary berteroa; Norwegian: Hvitdodre; Swedish: Sandvita

Description: annual or perennial

Native regions and distribution: Native to temperate Asia and Europe but found across the Norther America and Canada.

Urban habitat: commonly found in disturbed open sites with sandy or gravelly soils, along roads, trails, lawns, vacant lots; tolerates drought conditions. Seeds can remain dormant but viable for up to 9 years.

Ecological function: disturbance-adapted colonizer of bare ground; food and habitat for wildlife.

History / human uses: Berteroa incana was likely introduced into North America as a contaminant of clover and alfalfa seed. It can be toxic to horses when grazing in hay fields contaminated with it.