giant ragweed
Ambrosia trifida L.

Selected Images


1120010
1120010

giant ragweed
Ambrosia trifida
Plant(s)
James H. Miller & Ted Bodner
1391228
1391228

giant ragweed
Ambrosia trifida
Plant(s)
John D. Byrd
1391229
1391229

giant ragweed
Ambrosia trifida
Plant(s)
John D. Byrd
5125058
5125058

giant ragweed
Ambrosia trifida
Plant(s)
Chris Evans
5125059
5125059

giant ragweed
Ambrosia trifida
Foliage
Chris Evans
5125060
5125060

giant ragweed
Ambrosia trifida
Foliage
Chris Evans
5138079
5138079

giant ragweed
Ambrosia trifida
Foliage
Lynn Sosnoskie
5437219
5437219

giant ragweed
Ambrosia trifida
Foliage
Bruce Ackley
5437227
5437227

giant ragweed
Ambrosia trifida
Foliage
Bruce Ackley
5437228
5437228

giant ragweed
Ambrosia trifida
Foliage
Bruce Ackley
5437233
5437233

giant ragweed
Ambrosia trifida
Stem(s)
Bruce Ackley
5437222
5437222

giant ragweed
Ambrosia trifida
Seed(s)
Bruce Ackley

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Most Troublesome / Most Common Agricultural Weed List
This map identifies those states that consider this species either most troublesome or most common in at least one commodity. For more information, visit the MTMC project page.

State Regulated List
Legend
   No Data for this state
   Troublesome or Common weed in one or more crops

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Asterales
Family: Asteraceae
Genus: Ambrosia

Other System Links

Plants: AMTR
Bayer: AMBTR
GRIN: 103827
ITIS: 36521
NPDN Pest: PBFAEBE
NPDN Host: 31709

Synonyms and Other Names

Other Common Names:
blood ragweed, great ragweed, horseweed, perennial ragweed (great), tall ragweed

Categories

Category: Shrub or Subshrub
Category: Forbs/Herbs