Exotic Pest Reporting
Chris Evans, River to River CWMA, Bugwood.org
Hoary cress; Whitetop
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.
Summaries of State Plant Protection Laws and Regulations