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Lactuca serriola L.
COMPASS PLANT
Prickly Lettuce; Milk Thistle; Lactuca scariola L; Wild Lettuce, Milk Lettuce, Milk Thistle, Compass Plant, Wild Opium, English Thistle, Weed Milk Thistle, Horse Thistle

Life   Plantae   Dicotyledoneae   Asteraceae   Lactuca

Lactuca serriola, inflorescence - frontal view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Lactuca serriola, inflorescence - frontal view of flower

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Lactuca serriola, inflorescence - lateral view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Lactuca serriola, inflorescence - lateral view of flower
Lactuca serriola, leaf - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Lactuca serriola, leaf - unspecified
Lactuca serriola, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Lactuca serriola, leaf - basal or on lower stem
Lactuca serriola, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Lactuca serriola, inflorescence - whole - unspecified

Lactuca serriola, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Lactuca serriola, whole plant - in flower - general view
Lactuca serriola, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Lactuca serriola, stem - showing leaf bases
Lactuca serriola, fruit - lateral or general close-up
© Copyright Steve Baskauf, 2002-2011 · 4
Lactuca serriola, fruit - lateral or general close-up
Lactuca serriola
© Copyright Mel Harte 2010 · 3
Lactuca serriola

Lactuca serriola
© Copyright Mel Harte 2010 · 3
Lactuca serriola
Lactuca serriola
© Copyright Mel Harte 2010 · 3
Lactuca serriola
Lactuca serriola
© Copyright Mel Harte 2010 · 3
Lactuca serriola
Lactuca serriola
© Copyright Mel Harte 2010 · 3
Lactuca serriola

Lactuca serriola
© Copyright Mel Harte 2010 · 3
Lactuca serriola
Lactuca serriola
© Copyright Mel Harte 2010 · 3
Lactuca serriola

Associates · map
FamilyScientific name @ source (records)
Aphididae  Acyrthosiphon ( @ CSCA_TCN (2); AMNH_PBI (17)

Hyperomyzus lactucae @ AMNH_PBI (1)

Macrosiphum ( @ CSCA_TCN (1); NCSU (5); AMNH_PBI (10)

Myzus ( @ AMNH_PBI (1)

Uroleucon ( @ NCSU (15)
Apidae  Anthophora californica @ UCRC_ENT (1)
Coccinellidae  Hippodamia tredecimpunctata @ I_LB (1)
Erysiphaceae  Erysiphe cichoracearum @ BPI (1)
Pucciniaceae  Puccinia dioicae @ BPI (1)
Syrphidae  Sphaerophoria @ PN- (1)
_  Eucarazzia elegans @ CSCA_TCN (1)

unknown unknown @ AMNH_PBI (2)

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&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_USID423&res=320

Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Lactuca serriola L. Prickly Lettuce
Asteraceae — Aster family
Non-native
Lactuca serriola
The front yard
July 2002 Lactuca serriola
Prides Crossing
September 2009

Guide to Lactuca of Delaware

Search Google Delaware USDA

Photos copyright David G. Smith

Delaware Wildflowers main page

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http://plants.usda.gov/java/profile?symbol=LASE ---> https://plants.usda.gov/java/profile?symbol=LASE
https://plants.usda.gov/java/profile?symbol=LASE ---> http://plants.usda.gov/core/profile?symbol=LASE
http://plants.usda.gov/core/profile?symbol=LASE ---> https://plants.usda.gov/core/profile?symbol=LASE
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You are here: Home / Plant Profile

Lactuca serriola L.
prickly lettuce

Image of Lactuca serriola

General Information
Symbol: LASE
Group: Dicot
Family: Asteraceae
Duration: Annual
Biennial
Growth Habit : Forb/herb
Native Status : CAN   I
HI   I
L48   I
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 Lactuca thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA SCS. 1991. Southern wetland flora: Field office guide to plant species . South National Technical Center, Fort Worth. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

Robert H. Mohlenbrock. USDA SCS. 1991. Southern wetland flora: Field office guide to plant species . South National Technical Center, Fort Worth. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements .

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

Patrick J. Alexander. 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

Symbol Scientific Name
LASC6 Lactuca scariola L.

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 Lactuca L. – lettuce
Species Lactuca serriola L. – prickly lettuce

Subordinate Taxa

This plant has no children

Legal Status

U.S. Weed Information
Lactuca serriola China lettuce prickly lettuce wild lettuce 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.
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

North America
Arid West FACU
Atlantic and Gulf Coastal Plain FAC
Eastern Mountains and Piedmont FAC
Great Plains FAC
Midwest FACU
Northcentral & Northeast FACU
Western Mountains, Valleys, and Coast FACU

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (LASE)
CalPhotos (LASE)
Integrated Taxonomic Information System (LASC6)
Integrated Taxonomic Information System (LASE)
Jepson Interchange (University of California - Berkeley) (LASE)
Native American Ethnobotany (University of Michigan - Dearborn) (LASE)
USF Atlas of Florida Vascular Plants (LASE)
University of Tennessee Herbarium (Distribution) (LASE)
University of Washington Burke Museum (LASE)
University of Wisconsin - Stevens Point Freckmann Herbarium (LASE)
Related Websites
Arizona: abstract & image of prickly lettuce (Lactuca serriola) (LASE)
CalFlora: database occurrence (LASE)
UC Davis, IPM: abstract & images (LASE)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Lactuca+serriola&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=Lactuca+serriola&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 118
Query: SELECT * FROM img WHERE ready=1 and taxon like "Lactuca serriola%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Lactuca serriola
Lactuca serriola
Prickley Lettuce
ID: 6040 1631 1307 0043 [detail]
© 1995 Saint Mary's College of California

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 0503 0433 [detail]
© 2003 Michael Charters

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 0104 0668 [detail]
© 2004 Robert E. Preston, Ph.D.

Lactuca serriola
Lactuca serriola
Prickly Wild Lettuce
ID: 0000 0000 1102 1311 [detail]
© 2002 Steve Matson

Lactuca serriola
Lactuca serriola
China Lettuce
ID: 0000 0000 0105 1929 [detail]
© 2005 Louis-M. Landry

Lactuca serriola
Lactuca serriola
China Lettuce
ID: 0000 0000 0105 1930 [detail]
© 2005 Louis-M. Landry

Lactuca serriola
Lactuca serriola
China Lettuce
ID: 0000 0000 0105 1931 [detail]
© 2005 Louis-M. Landry

Lactuca serriola
Lactuca serriola
China Lettuce
ID: 0000 0000 0105 1932 [detail]
© 2005 Louis-M. Landry

Lactuca serriola
Lactuca serriola
ID: 0000 0000 0506 2243 [detail]
© 2006 Louis-M. Landry

Lactuca serriola
Lactuca serriola
ID: 0000 0000 0506 2244 [detail]
© 2006 Louis-M. Landry

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 0706 0063 [detail]
© 2006 Jennifer Naegele

Lactuca serriola
Lactuca serriola
ID: 0000 0000 0706 0621 [detail]
© 2006 Luigi Rignanese

Lactuca serriola
Lactuca serriola
ID: 0000 0000 0706 0625 [detail]
© 2006 Luigi Rignanese

Lactuca serriola
Lactuca serriola
ID: 0000 0000 0706 0628 [detail]
© 2006 Luigi Rignanese

Lactuca serriola
Lactuca serriola
ID: 0000 0000 0706 0632 [detail]
© 2006 Luigi Rignanese

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 0906 0309 [detail]
© 2006 Luigi Rignanese

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 0906 0322 [detail]
© 2006 Luigi Rignanese

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 0906 0323 [detail]
© 2006 Luigi Rignanese

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 1107 1053 [detail]
© 2007 Neal Kramer

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 1107 1054 [detail]
© 2007 Neal Kramer

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 0708 2102 [detail]
© 2008 Neal Kramer

Lactuca serriola
Lactuca serriola
Prickly Lettuce
ID: 0000 0000 0708 2103 [detail]
© 2008 Neal Kramer

Lactuca serriola
Lactuca serriola
ID: 0000 0000 1008 0653 [detail]
© 2008 Steve Matson

Lactuca serriola
Lactuca serriola
ID: 0000 0000 1008 0654 [detail]
© 2008 Steve Matson

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 .   


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