http://en.wikipedia.org/wiki/Ragweed
here is a link
Ragweed antigens bind to mast cells, which release histamines.
It is multicelluar plant.
ragweed
Marijuana is a member of the Moraceae (Mulberry) family, while ragweed is a member of the Compositae or Asteraceae (composite or sunflower) family in the genus Ambrosia (Hitchcock & Cronquist, 2001).
Ragweed is one of the biggest causes of sneezing.
Ragweed does not have thorns.
Mugwort resembles the chrysanthemum as well as ragweed. It's a perennial plant with green leaves that are narrow, deeply cut, and silvery on the underside.
The book Ragweed by Avi has 224 pages.
Ragweed antigens bind to mast cells, which release histamines.
NO! Ragweed is poisonous to horses and can kill them if it is ingested.
Any plant that starts with an R will do - like ragweed or roses.
yellow
Cross Canadian Ragweed - album - was created on 2002-09-10.
In Sarah Jane smith she killed ragweed by sending a huge alarm around London to destroy the ragweed. But this was due to braking their communication to each other so they will die.
yes
Carney - Cross Canadian Ragweed album - was created on 1998-07-17.
It is multicelluar plant.