Conyza canadensis



Colt's-tail, Fleabane, Horseweed

ID Characteristics

Life cycle: Summer or winter annual
Growth Habit: Erect
Propagation: Seed
Leaf Margin: Toothed
Leaf Hairs: Erect and bristly
Leaf Structure: Sessile, linear to eliptic
Leaf Arrangement: Alternate
Root Type: Taproot with secondary fibrous roots
Flower Color: Yellow and white


Similar Species

  • Fleabane, Annual Erigeron annuus
  • Fleabane, Rough Erigeron strigosus
  • Shepherds-purse Capsella bursa-pastoris

Herbicidal Control Options

  • Preemergence: Selective control options not available
  • Post Emergence: Florasulam

Please note: one or more of these active ingredients may exist in combination-type brand name products. Any material used for herbicidal control of any plant may vary in efficacy. Please read the full disclaimer on herbicide usage.