Classification
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All Names

  • English
    • Ragweed
  • Scientific Names
    • Ambrosia
    • Acanthambrosia

Extras

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27784472 51f3c96835 s Square Square Square 75px ambrosia artemisiifolia004 75px ambrosia chamissonis01 75px ambrosia gross Square Square Square Square Square Square 3979701892 5e1e6bea39 s 5087796789 2d1654e8bb s 27784472 51f3c96835 s 4784371439 c973b2f5eb s 8084016561 6e66ec7e17 s 6191713753 de6d50e659 s 6143205156 063d8daa81 s 6181007193 8ec815bb8a s 20162 98 68 15320 98 68 75px ambrosia dumosa 1
Creative Commons Flickr Photos Tagged "Ambrosia."

Recent observations

Photos / Sounds

What

Common Ragweed Ambrosia artemisiifolia

Observer

lilly2016

Date

August 21, 2016 01:54 PM CEST

Description

fields of invasive ragweed

Photos / Sounds

Square

What

Ragweed Genus Ambrosia

Observer

wanyili

Date

November 2, 2016 09:59 AM HST

Photos / Sounds

What

Western Ragweed Ambrosia psilostachya

Observer

kaitlynp76

Date

December 6, 2016 03:31 PM CST

Photos / Sounds

What

Giant Ragweed Ambrosia trifida

Observer

hturner12

Date

November 13, 2016 01:33 PM CST

Photos / Sounds

Square

What

Burrobush Ambrosia dumosa

Observer

cwbarrows

Date

December 4, 2016 02:23 PM PST

Photos / Sounds

Square

What

cheeseweed burrobrush Ambrosia monogyra

Observer

jaykeller

Date

December 4, 2016 11:49 AM PST

Photos / Sounds

What

cheeseweed burrobrush Ambrosia monogyra

Observer

jaykeller

Date

December 4, 2016 12:30 PM PST

Photos / Sounds

What

slimleaf bursage Ambrosia confertiflora

Observer

stevejones

Date

December 3, 2016 11:31 AM MST

Tags

Photos / Sounds

Square

What

silver burr ragweed Ambrosia chamissonis

Observer

carina_cates

Date

December 3, 2016 02:46 PM PST

Photos / Sounds

Square

What

Western Ragweed Ambrosia psilostachya

Observer

gcwarbler

Date

November 11, 2016 10:47 AM CST

Photos / Sounds

What

Cheesebush Ambrosia salsola

Observer

reallifeecology

Date

November 30, 2016 11:30 AM PST

Photos / Sounds

What

silver burr ragweed Ambrosia chamissonis

Observer

tiyumq

Date

December 2, 2016 11:50 AM PST
View all observations

Description from Wikipedia

Ragweeds are flowering plants in the genus Ambrosia in the aster family, Asteraceae. They are distributed in the tropical and subtropical regions of the New World, especially North America, where the origin and center of diversity of the genus are in the southwestern United States and northwestern Mexico. Several species have been introduced to the Old World and some have naturalized.

No range data available.
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