Whitetop

QUICK IDENTIFICATION

  • Gray-green stems and leaves
  • White to cream colored, flat-topped flower cluster
  • Heart-shaped seeds
  • Height of 1 to 2 feet

Video Information


Weed Pictures



Weed Information


Type Information
Toxicity Toxic to cattle
Control Cultivation, mowing and herbicide. Contact your County Weed District or local applicator for more information.
Habitat Sub-irrigated pastures, ditch banks, irrigated cropland, riparian areas, disturbed sites, including excessively grazed areas, waste areas, roadsides and open grasslands.
Root Extensive root system
Leaf Shape Lance or arrowhead-shaped, alternate on stem with toothed edges
Lifespan Perennial; two years or longer
Priority 2B Weed Abundant in Montana and widespread in many counties
Similar Looking Plants Perennial pepperweed, lens-podded hoary cress, hairy whitetop and common yarrow
Important Information Whitetop is generally one of the earliest noxious weeds to come up in the spring (May). Seeds remain viable for 4-years and roots can reach depths of 6-feet.
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