group of ragweed plants
by melody Jul 10, 2004 8:21 AM
closeup of the stem and leaves
by melody Jul 10, 2004 8:21 AM
Bloom stalks of the Common Ragweed plant
by melody Aug 30, 2004 7:59 AM
A source of shelter for insects, Ragweed harbors many species.
by melody Aug 29, 2004 7:59 AM
Ragweed seed
by melody Nov 7, 2004 5:37 PM
Common Ragweed seedling, early April, West KY
by melody Apr 14, 2005 11:42 AM
Ragweed (Ambrosia artemisiifolia)
by Equilibrium Sep 2, 2005 11:28 PM
Common Ragweed, Annual Ragweed (Ambrosia artemisiifolia) - male flowerheads at top (pendulous with anthers exserted); female heads (underneath male heads, above the highest leaves)
by htop Nov 4, 2006 6:33 AM
Common Ragweed, Annual Ragweed, Annual Bur-Sage (Ambrosia artemisiifolia) foliage
by htop Nov 4, 2006 6:34 AM
A very close view of the Common Ragweed, Annual Ragweed, Annual Bur-Sage (Ambrosia artemisiifolia) male flowerheads showing the fine hairs and some of that infamous pollen falling from the top right flower
by htop Nov 4, 2006 7:10 AM
A very vigorous ragweed.
by PuddlePirate Aug 4, 2009 3:19 AM
A ragweed that's about two days away from flowering.
by PuddlePirate Aug 4, 2009 3:19 AM
Ambrosia artemisiifolia in High Park, Toronto, August 16, 2009.
by RosemaryA Aug 18, 2009 11:49 AM
A specimen at a house foundation
by Rickwebb Sep 8, 2015 9:19 PM
