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Ragweed (Common)

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Ambrosia artemisiifolia
Ragweed (Common)


Common weed of field and roadside.


Up to 6' tall - blooms in summer to fall. Tiny, green flowers grow at the top of plant on long spikes. Leaves are feather and opposite each other on stem.

Taxonomic Features (Traits) for Identification

  • Flower Type:  Flowers too small to be seen clearly - in tall spikes (racemes) on the top of the plant
  • Flower Color: Green
  • Leaf Arrangement: Opposite or alternate
  • Plant Type: Wildflower (Tall - 1-6 feet)
  • Leaf Type: Divided with 3-5 deep lobes - lacy looking

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