Allergy season is starting! This is Great Ragweed, Ambrosia trifida. It can grow to be up to four meters tall.

  1. mysisterthemoon reblogged this from brilliantbotany
  2. openeyes-openheart reblogged this from brilliantbotany and added:
    THE DEVIL.
  3. rebukiii reblogged this from brilliantbotany and added:
    yep. i’m allergic. and it grows pretty much EVERYWHERE around here.
  4. brilliantbotany posted this