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Arctium minus (Hill) Bernh.
LESSER BURDOCK
Arctium minus subsp pubens (Bab) P Fourn; Arctium pubens Bab; Lappa minor Hill; Common burdock

Life   Plantae   Dicotyledoneae   Asteraceae   Arctium

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Arctium minus
© Copyright Bobby Hattaway 2011 · 5
Arctium minus
Arctium minus
© Copyright Bobby Hattaway 2011 · 5
Arctium minus

Arctium minus
© Copyright Bobby Hattaway 2011 · 5
Arctium minus
Arctium minus
© Copyright Bobby Hattaway 2011 · 5
Arctium minus

Arctium minus
© Les Mehrhoff, 2008-2010 · 4
Arctium minus
Arctium minus, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Arctium minus, inflorescence - whole - unspecified

Arctium minus, inflorescence - whole - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Arctium minus, inflorescence - whole - unspecified
Arctium minus, leaf - on upper stem
© Copyright Steve Baskauf, 2002-2011 · 4
Arctium minus, leaf - on upper stem

Arctium minus, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Arctium minus, stem - showing leaf bases
Arctium minus, leaf - margin of upper + lower surface
© Copyright Steve Baskauf, 2002-2011 · 4
Arctium minus, leaf - margin of upper + lower surface

Arctium minus
© Copyright Bobby Hattaway 2011 · 4
Arctium minus
Arctium minus
© Copyright Malcolm Storey 2011-2118 · 3
Arctium minus

Arctium minus
© Copyright Malcolm Storey 2011-2118 · 3
Arctium minus
Arctium minus
© Copyright Malcolm Storey 2011-2118 · 3
Arctium minus

Associates · map
FamilyScientific name @ source (records)
Aphididae  Aphis ( @ NCSU_ENT (16)
Apidae  Bombus ashtoni @ AMNH_BEE (1)

Bombus vagans @ AMNH_BEE (1)
Botryosphaeriaceae  Phyllosticta lappae @ BPI (2)
Erysiphaceae  Erysiphe cichoracearum @ BPI (6)

Erysiphe depressa @ BPI (4)
Megachilidae  Megachile centuncularis @ BBSL (3)

Megachile pugnata @ AMNH_BEE (1)
Membracidae  Entylia carinata @ UDCC_TCN (1)
Mycosphaerellaceae  Cercospora arctii-ambrosiae @ BPI (2)

Septoria lapparum @ BPI (2)
Pleosporaceae  Pleospora vulgaris @ BPI (1)
Pucciniaceae  Puccinia balsamorrhizae @ BPI (1)

Puccinia bardanae @ BPI (167)

Puccinia bordanae @ BPI (1)

Puccinia calcitrapae @ BPI (6)
_  Ascochyta lappae @ 802084A (1); 802084B (1)

Euscelidius variegatus @ AMNH_PBI (52)

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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_USID60&res=320

Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Arctium minus Bernh. Lesser Burdock
Asteraceae — Aster family
Non-native
Arctium minus
Carousel Farm Park
July 2000

Guide to Arctium of Delaware

Search Google Delaware USDA

Copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
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Arctium minus Bernh.

Burdock

Arctium minus plant2

Family - Asteraceae

Habit - Large, coarse, biennial forb with stout taproot.

Stems - Ascending, to 1.8 m, usually branched, stout, longitudinally ridged, minutely hairy, at least toward the tip, often reddish- or purplish-tinged.

Arctium minus stem Stem and node.

Leaves - Basal and alternate, long-petiolate. Petioles sparsely pubsescent, to 40 cm, with adaxial groove, typically hollow. Basal leaf blades to 60 cm long, ovate, cordate at the base, bluntly or sharply pointed at the tip, the margins irregularly wavy, crisped, or shallowly lobed and often also toothed, the upper surface glabrous or with scattered hairs along the main veins, the undersurface pale-colored, sparsely to moderately pubescent with minute, few-branched hairs, sometimes becoming nearly glabrous with age. Stem leaves progressively smaller toward the tip.

Arctium minus leaf1 Basal leaf.

Arctium minus leaf2 Leaf abaxial.

Arctium minus leaf Basal leaf and size 10 hiking boot.

Inflorescence - Inflorescences axillary and terminal, the heads sessile or short-stalked, appearing clustered or more commonly in short, dense racemes. Peduncles tomentose.

Arctium minus inflorescence Inflorescence.

Heads - Discoid, the involucre broadly ovoid to nearly spherical, 1.2-2.5 cm in diameter, the florets all perfect. Receptacle flat, with numerous chaff bristles. Involucral bracts 4-13 mm long, the body narrowly lanceolate, appressed-ascending, glabrous or somewhat glandular, tapered to a long, stiff, ascending bristle, this hooked at the tip. Involucre becoming slightly enlarged and globose in fruit.

Arctium minus head Head, sectioned.

Ray florets - Absent.

Disc florets - Corollas 7-9 mm long, pink to purple, glabrous, often somewhat glandular, 5-lobed, the lobes acute, 1.3mm long. Stamens 5, adnate at apex of constricted portion of corolla tube. Filaments white, glabrous, 3.5 mm long. Anthers purple, connate around style, exserted, 3 mm long. Style bifurcate, white, pubescent at base of stigmas. Pappus of several unequal series of short, flattened, bristlelike awns, these 1-3 mm long, with short, ascending barbs, mostly shed individually by fruiting.

Fruits - July - September. Achenes to 6 mm long, oblong or slightly narrower at the symmetrical base, somewhat flattened, the surface finely wrinkled, grayish brown with darker mottling.

Flowering - July - October.

Habitat - Pastures, roadside ditches, low woods, streambanks.

Origin - Native to Europe.

Other info. - This coarse plant is found scattered sporadically throughout most of the state, and is found in nearly all of the continental U.S. except Texas and Florida. The combination of large basal leaves and the numerous flowering heads with hooked phyllaries make this plant easy to identify. It's wise to avoid contact with the plant late in the year, as the fruiting heads grab onto nearly everything. Absent humans, the burlike heads are dispersed mainly in animal fur.

Young stems of burdock are eaten fresh or (more commonly) baked or boiled, and young foliage is eaten by livestock. The thick roots can be cooked and eaten, and in the past they sometimes were dried and ground for use as a coffee extender similar to chicory. The roots also have been used medicinally as a laxative, diuretic, and to treat rheumatism, burns, and sores. Most plants have pink to light reddish purple disk corollas. The color variation has formed the basis of species subdivisions published by some authors.

Photographs taken at Geneva State Park, Geneva, Ohio, 8-4-00, and at Whirlpool State Park, Niagra Falls, NY., 8-6-00 (DETenaglia); also at Weldon Spring Conservation Area, St. Charles County, MO, 9-1-2007, and near Labadie, Franklin County, MO, 7-29-2014 (SRTurner).


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

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Number of matches : 56
Query: SELECT * FROM img WHERE ready=1 and taxon like "Arctium minus%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Arctium minus
Arctium minus
Smaller Burdock
ID: 0024 3291 1998 0073 [detail]
Charles Webber
© 2000 California Academy of Sciences

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0308 0549 [detail]
© 2008 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0308 0548 [detail]
© 2008 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
ID: 0000 0000 0506 1189 [detail]
© 2006 Louis-M. Landry

Arctium minus
Arctium minus
ID: 0000 0000 0506 1190 [detail]
© 2006 Louis-M. Landry

Arctium minus
Arctium minus
ID: 0000 0000 0506 1191 [detail]
© 2006 Louis-M. Landry

Arctium minus
Arctium minus
ID: 0000 0000 0506 1192 [detail]
© 2006 Louis-M. Landry

Arctium minus
Arctium minus
ID: 0000 0000 0506 1193 [detail]
© 2006 Louis-M. Landry

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0806 0867 [detail]
© 2006 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0806 0868 [detail]
© 2006 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0806 0869 [detail]
© 2006 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
ID: 0000 0000 0107 0320 [detail]
© 2007 Louis-M. Landry

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0308 0545 [detail]
© 2008 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0308 0544 [detail]
© 2008 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0308 0543 [detail]
© 2008 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0308 0542 [detail]
© 2008 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0308 0547 [detail]
© 2008 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0308 0546 [detail]
© 2008 Dr. Amadej Trnkoczy

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0710 1628 [detail]
© 2010 Jean Pawek

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 0710 1629 [detail]
© 2010 Jean Pawek

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 1010 1027 [detail]
© 2010 Barry Breckling

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 1010 1028 [detail]
© 2010 Barry Breckling

Arctium minus
Arctium minus
Lesser Burdock
ID: 0000 0000 1010 1029 [detail]
© 2010 Barry Breckling

Arctium minus
Arctium minus
Burdock
(shown with Chenopodium album )
ID: 0000 0000 0413 1559 [detail]
© 2013 Jean Pawek

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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