1.27.97
Virtual WeedPatch
Weed ID
rag.html
Composite (Compositae) Family
Ragweed Species-Group (Ambrosia spp.)
Common Ragweed
Giant Ragweed
Ragweed has a bad reputation with just about everyone. Non-farm city
folks hate it because it is the source of "hay fever", those irritating
pollen grains floating in the air. Farmers hate it because it is such a
nasty weed.
There are two major weedy pests in this species-group. Lets take a look
at this monster.
The seedlings are distinctive, and unlike many other seedlings, easier to
identify because of their leaf shape (lobed):
Common ragweed seedlings:
Giant ragweed seedlings:
Leaf shape, stems and vegetative parts:
Common ragweed:
Stems: 
Giant ragweed:
Seedheads and flowers:
Common ragweed (my nose is getting itchy):
Giant ragweed:
