Pest Photo

Chris Evans, River to River CWMA,

Hoary cress; Whitetop

Cardaria draba

Hoary cress; Whitetop (Cardaria draba) is an invasive plant. It was first detected in Missouri in 1987.

This is a creeping perennial, which reproduces by seed and creeping roots. It grows in waste places, cultivated fields, and pastures and now infests about 32,000 acres across Montana.

For more information about this plant pest, see the CABI data sheet.