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VIRTUAL FIELD GUIDE >> Noxious Weed List >> Hoary Cress

Hoary Cress (Leidium draba ssp. draba)  

Hoary Cress about ready to bloom.
Hoary Cress about ready to bloom.

Hoary cress, commonly known as Whitetop, is native to western Asia and eastern Europe and is an invasive species in North America, introduced by contanimated seeds in the early 1900s.

A perennial that grows up to 2 feet tall, it produces flat dense white flower clusters. Two reddish brown seeds are contained in each heart-shaped seedpod.

Hoary Cress is found in cultivated fields, pastures, waste areas and roadsides.

Hoary Cress growing in a recently disturbed area.
Hoary Cress growing in a recently disturbed area.

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