D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp


Ambrosia artemisiifolia L.
RAGWEED
Ambrosia elatior L; Annual ragweed; Rgweed

Life   Plantae   Dicotyledoneae   Asteraceae   Ambrosia

Links
80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2
Set display option above.
Click on images to enlarge.
Ambrosia artemisiifolia
© Copyright Bobby Hattaway 2011 · 5
Ambrosia artemisiifolia
Ambrosia artemisiifolia
© Copyright Bobby Hattaway 2011 · 5
Ambrosia artemisiifolia

Ambrosia artemisiifolia, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Ambrosia artemisiifolia, inflorescence - whole - unspecified
Ambrosia artemisiifolia, inflorescence - whole - male
© Copyright Steve Baskauf, 2002-2011 · 4
Ambrosia artemisiifolia, inflorescence - whole - male

Ambrosia artemisiifolia, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Ambrosia artemisiifolia, leaf - basal or on lower stem
Ambrosia artemisiifolia, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Ambrosia artemisiifolia, stem - showing leaf bases

Ambrosia artemisiifolia, inflorescence - whole - female
© Copyright Steve Baskauf, 2002-2011 · 4
Ambrosia artemisiifolia, inflorescence - whole - female
Ambrosia artemisiifolia
© Les Mehrhoff, 2008-2010 · 4
Ambrosia artemisiifolia

Ambrosia artemisiifolia
© Les Mehrhoff, 2008-2010 · 4
Ambrosia artemisiifolia
Ambrosia artemisiifolia
© Copyright Malcolm Storey 2011-2118 · 3
Ambrosia artemisiifolia

Ambrosia artemisiifolia
© Copyright Malcolm Storey 2011-2118 · 3
Ambrosia artemisiifolia
Ambrosia artemisiifolia
© Copyright Malcolm Storey 2011-2118 · 3
Ambrosia artemisiifolia

Ambrosia artemisiifolia
© Copyright Malcolm Storey 2011-2118 · 3
Ambrosia artemisiifolia
Ambrosia artemisiifolia
© Copyright Malcolm Storey 2011-2118 · 3
Ambrosia artemisiifolia

Associates · map
FamilyScientific name @ source (records)
Albuginaceae  Albugo cubicus @ BPI (2)

Albugo tragopogonis @ 187869B (1); 186318A (1); BPI (49)
Aphididae  Aphis ( @ NCSU_ENT (3); CSUC_TCN (3)

Capitophorus @ CSCA_TCN (5)

Pleotrichophorus ambrosiae @ NCSU (4)

Pleotrichophorus wasatchii @ NCSU (3)

Uroleucon ( @ NCSU (95)
Braconidae  Aphidius ( @ AMNH_PBI (3)
Cicadellidae  Ceratagallia ( @ UCR_ENT (3)

Empoasca curvexa @ III (1)

Empoasca deckeri @ III (1)

Empoasca erigeron @ III (1)

Empoasca plebeia @ III (1)
Cicadidae  Tibicen chloromera @ MEMU_ENT (1)
Coccinellidae  Coccinella septempunctata @ I_LB (5)
Delphacidae  Stobaera azteca @ UDCC_TCN (1)

Stobaera concinna @ UDCC_TCN (8)
Dictyopharidae  Scolops pungens @ UDCC_TCN (1)
Dothioraceae  Metasphaeria ambrosiaecola @ BPI (2)
Endosphaeraceae  Rhodochytrium spilanthis @ BPI (11)

Rhodochytrium @ BPI (2)
Entomophthoraceae  Entomophthora @ BPI (1)
Entylomataceae  Entyloma compositarum @ BPI (29)

Entyloma polysporum @ BPI (28)

Entyloma @ BPI (1)
Erysiphaceae  Erysiphe ambrosiae @ BPI (1); 860157B (1)

Erysiphe cichoracearum @ BPI (69); 860157A (1)

Erysiphe lamprocarpa @ BPI (1)

Oidium ambrosiae @ BPI (1)
Flatidae  Cyarda @ UDCC_TCN (3)
Hyponectriaceae  Physalospora ambrosiae @ BPI (2)

Physalospora arthuriana @ BPI (1)
Membracidae  Acutalis tartarea @ UDCC_TCN (33); NCSU (92)

Campylenchia latipes @ UDCC_TCN (9); NCSU (4)

Entylia carinata @ NCSU (142); UDCC_TCN (69)

Micrutalis calva @ NCSU (1)

Publilia concava @ NCSU (10)
Miridae  Chlamydatus associatus @ AMNH_PBI (1)

Chlamydatus suavis @ AMNH_PBI (3)

Dimorphocoris atrans @ AMNH_PBI (1)

Gn_orthotylinigp5 sp_007 @ AMNH_PBI (1)

Hyaliodes vitripennis @ MEMU_ENT (2)

Keltonia sulphurea @ MEMU_ENT (9)

Lygus lineolaris @ MEMU_ENT (11)

Lygus @ AMNH_PBI (7)

Reuteroscopus ornatus @ AMNH_PBI (9)

Reuteroscopus unknown @ AMNH_PBI (12)

Slaterocoris ambrosiae @ AMNH_PBI (1)

Taylorilygus apicalis @ AMNH_PBI (3); MEMU_ENT (2)
Mycosphaerellaceae  Cercospora ferruginea @ BPI (1)

Septoria epambrosiae @ BPI (1)
Nectriaceae  Fusarium @ BPI (1)
Noctuidae  Diphthera festiva @ I_TQBH (1)
Peronosporaceae  Peronospora halstedii @ BPI (1)

Plasmopara halstedii @ BPI (32); 187869A (1)
Phaeosphaeriaceae  Ophiobolus anguillides @ BPI (10)

Ophiobolus fulgidus @ BPI (1)
Phyllachoraceae  Phyllachora ambrosiae @ BPI (19)
Protomycetaceae  Protomyces andinus @ BPI (4)
Psathyrellaceae  Ozonium omnivorum @ BPI (1)
Pseudococcidae  Chorizococcus shaferi @ MEMU_ENT (2)
Pucciniaceae  Puccinia canaliculata @ BPI (1)

Puccinia xanthii @ BPI (12)

Uromyces junci @ BPI (3)
Stictidaceae  Stictis radiata @ BPI (1)
Trichogrammatidae  Ufens @ UCRC_ENTA (1)
Tropiduchidae  Pelitropis rotulata @ UDCC_TCN (1)
Uropyxidaceae  Aecidium compositarum @ BPI (1)
Xylariaceae  Sphaeria acuminata @ BPI (1)
_  Gn_ms_granitohyoidea sp_wa0909msp119 @ AMNH_PBI (1)

Tiryus fuscosignatus @ AMNH_PBI (1)

Xenosporella berkeleyi @ BPI (1)

go to Discover Life's Facebook group

Following modified from USID_Seeds
   Top | See original

&pull 20q v5.145 20180528: Error 500 Can't connect to pick18.pick.uga.edu:80 http://pick18.pick.uga.edu/mp/20p?see=I_USID4&res=320

Following modified from Flora of Taiwan, National Taiwan University
   Top | See original

&pull 20q v5.145 20180528: Error 301 Moved Permanently http://tai2.ntu.edu.tw/udth/bin/fot1.exe/browse?bid=4&page=826

Following modified from Delaware Wildflowers
   Top | See original

Delaware Wildflowers  •  Scientific names

Ambrosia artemisiifolia L. Ragweed
Asteraceae — Aster family
Native
Ambrosia artemisiifolia
Carousel Farm Park
September 2002

More information on this plant, from other sources.


Copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
   Top | See original

&pull 20q v5.145 20180528: Error 404 Not Found http://www.missouriplants.com/Greenalt/Ambrosia_artemisifolia_page.html

Following served from Plant Bug AMNH_PBI00000391 wa%201997%20l53%20h098
   
Top | See original context

Following served from Plant Bug AMNH_PBI00002263 wa%201997%20l55%20h105
   
Top | See original context

Following modified from Taiwan Biodiversity National Information Network
   
Top | See original

 
Kingdom Plantae  
 Phylum Tracheophyta  
 Class Magnoliopsida  
 Order Asterales  
 Family Asteraceae  
 Genus Ambrosia  
  Ambrosia artemisiifolia    L., 1753 
Provider: Ching-I Peng 
hierarchy tree    download xml    download txt    Chinese Page    
Synonyms: Ambrosia artemisiifolia artemisiifolia Ambrosia artemisiifolia elatior Ambrosia chilensis Ambrosia elata Ambrosia elatior Ambrosia elatior elatior Ambrosia glandulosa Ambrosia monophylla Ambrosia paniculata Ambrosia paniculata paniculata Iva monophylla   details
Citation: Flora of Taiwan 2nd ed. 4: 826, 1998; Wu, S. H., C. F. Hsieh, and Marcel Rejmanek. 2004. Catalogue of the Naturalized Flora of Taiwan. Taiwania
Name Code: 202362
   Invasive     
Suggested Link    Discover Life    Flora of Taiwan 2nd eBooks (National Taiwan University)    Global Invasive Species Database (GISD)  
User Response:   upload Comments    upload Photo
 
陳育賢
2010-11-15 U/L
 
RECKON
2014-05-01 U/L
 
RECKON
2014-05-01 U/L
 
RECKON
2014-05-01 U/L
 
RECKON
2014-05-01 U/L
 
RECKON
2014-05-01 U/L
 
RECKON
2014-05-01 U/L
 
RECKON
2014-05-01 U/L
 
Previous Page       Home Page

Following modified from Plants Database, United States Department of Agriculture
   Top | See original

http://plants.usda.gov/java/profile?symbol=AMAR2 ---> https://plants.usda.gov/java/profile?symbol=AMAR2
https://plants.usda.gov/java/profile?symbol=AMAR2 ---> http://plants.usda.gov/core/profile?symbol=AMAR2
http://plants.usda.gov/core/profile?symbol=AMAR2 ---> https://plants.usda.gov/core/profile?symbol=AMAR2
Link: Skip repetitive navigation links
USDA and NRCS Identifier NRCS Logo
USDA.gov Web Site PLANTS photo banner
PLANTS Home  about PLANTS  PLANTS Team  Partners of PLANTS  What  National Plant Data Team Web Site  Help using PLANTS  Contact PLANTS
 
 Search the PLANTS Web site
 Name Search

 State Search
 Advanced Search
 Search Help
PLANTS Topics
 
 Alternative Crops
 Characteristics
 Classification
 Cover Crops
 Culturally Significant
 Distribution Update
 Documentation
 Fact Sheets & Plant Guides
 Introduced, Invasive, and Noxious Plants
 Threatened & Endangered
 Wetland Indicator Status
 
PLANTS Image Gallery
 
 50,000+ Plant Images
 
Download PLANTS data
 
 Complete PLANTS Checklist
 State PLANTS Checklist
 Advanced Search Download
 Symbols for Unknown Plants
 NRCS State GSAT Lists
 NRCS State Plants Lists
 
Related tools
 
 Crop Nutrient Tool
 Ecological Site Information System
 PLANTS Identification Keys
 Plant Materials Web Site
 Plant Materials Publications
 USDA Plant Hardiness Map
 
 
You are here: Home / Plant Profile

Ambrosia artemisiifolia L.
annual ragweed

Image of Ambrosia artemisiifolia

General Information
Symbol: AMAR2
Group: Dicot
Family: Asteraceae
Duration: Annual
Growth Habit : Forb/herb
Native Status : CAN   N
HI   I
L48   I,N
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

click on a thumbnail to view an image, or see all the Ambrosia thumbnails at the Plants Gallery

Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory . United States, DC, Washington. Usage Requirements .

Patrick J. Alexander. Usage Requirements .

Patrick J. Alexander. Usage Requirements .

Patrick J. Alexander. Usage Requirements .

©Ted Bodner. James H. Miller and Karl V. Miller. 2005. Forest plants of the southeast and their wildlife uses. University of Georgia Press., Athens. Provided by University of Georgia Press . Scanned by Forestry Images . Usage Requirements .

©Ted Bodner. James H. Miller and Karl V. Miller. 2005. Forest plants of the southeast and their wildlife uses. University of Georgia Press., Athens. Provided by University of Georgia Press . Scanned by Forestry Images . Usage Requirements .

©Ted Bodner. James H. Miller and Karl V. Miller. 2005. Forest plants of the southeast and their wildlife uses. University of Georgia Press., Athens. Provided by University of Georgia Press . Scanned by Forestry Images . Usage Requirements .

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team . Usage Requirements .

slideshow

Synonyms

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae ⁄ Compositae – Aster family
Genus Ambrosia L. – ragweed
Species Ambrosia artemisiifolia L. – annual ragweed

Subordinate Taxa

The Plants Database includes the following 3 subspecies of Ambrosia artemisiifolia . Click below on a thumbnail map or name for subspecies profiles. Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend Distribution of <i>
Ambrosia artemisiifolia</i>
L. var. <i>
artemisiifolia </i>
Ambrosia artemisiifolia var. artemisiifolia
annual ragweed Distribution of <i>
Ambrosia artemisiifolia</i>
L. var. <i>
elatior</i>
(L.) Descourtils
Ambrosia artemisiifolia var. elatior
annual ragweed Distribution of <i>
Ambrosia artemisiifolia</i>
L. var. <i>
paniculata</i>
(Michx.) Blank.
Ambrosia artemisiifolia var. paniculata
annual ragweed

Legal Status

Noxious Weed Information
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds .
Illinois common ragweed Noxious weed 1
Oregon ragweed "B" designated weed ragweed Quarantine
1 within the corporate limits of cities, villages, and incorporated towns
U.S. Weed Information
Ambrosia artemisiifolia Roman wormwood annual ragweed common ragweed low ragweed short ragweed small ragweed This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
STATE Assorted authors. State noxious weed lists for 46 states . State agriculture or natural resource departments.
KY Haragan, P.D.. 1991. Weeds of Kentucky and adjacent states: a field guide . The University Press of Kentucky. Lexington, Kentucky.
N'EAST Uva, R.H., J.C. Neal,and J.M. DiTomaso. 1997. Weeds of the Northeast . Cornell University Press. Ithaca, New York.
NE&GP Stubbendieck, J., G.Y. Friisoe,and M.R. Bolick. 1994. Weeds of Nebraska and the Great Plains . Nebraska Department of Agriculture, Bureau of Plant Industry. Lincoln, Nebraska.
SWSS Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM . Southern Weed Science Society. Champaign, Illinois.
WSWS Whitson, T.D. (ed.) et al.. 1996. Weeds of the West . Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming. Laramie, Wyoming.

Wetland Status

Interpreting Wetland Status

Top Level Regions
Hawaii UPL
North America
Alaska FACU
Arid West FACU
Atlantic and Gulf Coastal Plain FACU
Eastern Mountains and Piedmont FACU
Great Plains FACU
Midwest FACU
Northcentral & Northeast FACU
Western Mountains, Valleys, and Coast FACU

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (AMAR2)
Integrated Taxonomic Information System (AMAR2)
Jepson Interchange (University of California - Berkeley) (AMAR2)
Lady Bird Johnson Wildflower Center Native Plant Information Network (AMAR2)
Native American Ethnobotany (University of Michigan - Dearborn) (AMAR2)
USF Atlas of Florida Vascular Plants (AMAR2)
University of Tennessee Herbarium (Distribution) (AMAR2)
University of Washington Burke Museum (AMAR2)
University of Wisconsin - Stevens Point Freckmann Herbarium (AMAR2)
Related Websites
Auburn University Wildflower Notes (AMAR2)
Virginia: abstract & image (AMAR2)
http://newyork.plantatlas.usf.edu (AMAR2)
http://www.floraofalabama.org (AMAR2)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Miller Low Moderate

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds
Miller Moderate

Sources

Miller, J.H., and K.V. Miller. 1999. Forest plants of the southeast and their wildlife uses . Southern Weed Science Society.

Description of Values

Value Class Food Cover
High Average 25-50% of diet Regular source of cover
Low 5-10% of diet Infrequently used as cover
Minor 2-5% of diet Sparsely used as cover
Moderate Average 10-25% of diet Occasional source of cover


 PLANTS Home | USDA.gov | NRCS | Site Map | Policies and Links
Accessibility Statement | Privacy Policy | Non-Discrimination Statement

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
 
All Floras       Advanced Search
FNA Vol. 21 Page 11, 15 , 16 , 18 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 21 | Asteraceae | Ambrosia

13. Ambrosia artemisiifolia Linnaeus, Sp. Pl. 2: 988. 1753.

Petite herbe à poux

Ambrosia artemisiifolia var. elatior (Linnaeus) Descourtilz; A. artemisiifolia var. paniculata (Michaux) Blankinship; A. elatior Linnaeus; A. glandulosa Scheele; A. monophylla (Walter) Rydberg

Annuals, 10—60(—150+) cm. Stems erect. Leaves opposite (proximal) and alternate; petioles 25—35(—60+) mm; blades deltate to lanceolate or elliptic, 25—55(—90+) × 20—30(—50+) mm, 1—2-pinnately lobed, bases cuneate, ultimate margins entire or toothed, abaxial faces sparsely pilosulous to strigillose, adaxial faces strigillose, both gland-dotted. Pistillate heads clustered, proximal to staminates; florets 1. Staminate heads: peduncles 0.5—1.5 mm; involucres shallowly cup-shaped (usually without black nerves), 2—3+ mm diam., glabrous or hispid to pilosulous; florets 12—20+. Burs: bodies ± globose to pyriform, 2—3 mm, ± pilosulous, spines or tubercles 3—5+, near middles or distal, ± conic to acerose, 0.1—0.5+ mm, tips straight. 2 n = 34, 36.

Flowering Jul—Oct. Wet to dry soils, disturbed sites; 0—1000+ m; Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Sask.; Ala., Alaska, Ariz., Ark., Calif., Colo., Conn., Del., D.C., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo.

Hybrids between Ambrosia artemisiifolia and A. psilostachya have been called A. × intergradiens W. H. Wagner. The name Ambrosia × helenae Rouleau applies to hybrids between A. artemisiifolia and A. trifida .

Following modified from CalPhotos
   Top | See original

http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Ambrosia+artemisiifolia&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Ambrosia+artemisiifolia&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

CalPhotos    
Contributors       Log In  
 

Number of matches : 22
Query: SELECT * FROM img WHERE ready=1 and taxon like "Ambrosia artemisiifolia%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Ambrosia artemisiifolia
Ambrosia artemisiifolia
ID: 0000 0000 0506 1090 [detail]
© 2006 Louis-M. Landry

Ambrosia artemisiifolia
Ambrosia artemisiifolia
ID: 0000 0000 0506 1091 [detail]
© 2006 Louis-M. Landry

Ambrosia artemisiifolia
Ambrosia artemisiifolia
ID: 0000 0000 0506 1092 [detail]
© 2006 Louis-M. Landry

Ambrosia artemisiifolia
Ambrosia artemisiifolia
ID: 0000 0000 0506 1093 [detail]
© 2006 Louis-M. Landry

Ambrosia artemisiifolia
Ambrosia artemisiifolia
ID: 0000 0000 0510 0086 [detail]
© 2010 Louis-M. Landry

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Common Ragweed
ID: 0000 0000 0710 1592 [detail]
© 2010 Jean Pawek

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Common Ragweed
ID: 0000 0000 0710 1593 [detail]
© 2010 Jean Pawek

Ambrosia artemisiifolia
Ambrosia artemisiifolia
ID: 0000 0000 0911 0804 [detail]
© 2011 Jean Pawek

Ambrosia artemisiifolia
Ambrosia artemisiifolia
ID: 0000 0000 0911 0805 [detail]
© 2011 Jean Pawek

Ambrosia artemisiifolia
Ambrosia artemisiifolia
ID: 0000 0000 0911 0806 [detail]
© 2011 Jean Pawek

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Common Ragweed
ID: 0000 0000 1012 0890 [detail]
© 2012 Jean Pawek

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Annual Ragweed
ID: 0000 0000 0214 0035 [detail]
© 2014 Richard Spellenberg

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Annual Ragweed
ID: 0000 0000 0214 0036 [detail]
© 2014 Richard Spellenberg

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Common Ragweed
ID: 0000 0000 0715 1208 [detail]
© 2015 Jean Pawek

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Common Ragweed
ID: 0000 0000 0915 1046 [detail]
© 2015 Richard Spellenberg

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Common Ragweed
ID: 0000 0000 0915 1047 [detail]
© 2015 Richard Spellenberg

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Common Ragweed
ID: 0000 0000 0915 1048 [detail]
© 2015 Richard Spellenberg

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Common Ragweed
ID: 0000 0000 0915 1049 [detail]
© 2015 Richard Spellenberg

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Annual Ragweed
ID: 0000 1111 1234 1453 [detail]
© 2016 Keir Morse

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Annual Ragweed
ID: 0000 1111 1234 1454 [detail]
© 2016 Keir Morse

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Annual Ragweed
ID: 0000 1111 1234 1455 [detail]
© 2016 Keir Morse

Ambrosia artemisiifolia
Ambrosia artemisiifolia
Annual Ragweed
ID: 0000 1111 1234 1456 [detail]
© 2016 Keir Morse

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


Copyright © 1995-2018 UC Regents. All rights reserved.

CalPhotos is a project of BNHM      University of California, Berkeley

Updated: 2018-07-15 23:50:01 gmt
Discover Life | Top
© Designed by The Polistes Corporation