common burdock

(Arctium minus)

               
Conservation Status

IUCN Red List

not yet assessed

common burdock

NatureServe

NNA - Not applicable

SNA - Not applicable

Minnesota

not listed

Wetland
Indicator
Status

Great Plains

FACU - Facultative upland

Midwest

FACU - Facultative upland

Northcentral & Northeast

FACU - Facultative upland

Weed Status

Noxious weed in Cass County

Nativity

Native to Northern Africa, Western Asia, and Europe. Introduced and naturalized in the United States. Potentially invasive.

Occurrence

Common

Photo by Bill Reynolds
Habitat

Disturbed sites, roadsides.

 
Flowering

July to October

 
Flower Color

Purple, pink, or, sometimes, white

 
Height

2 to 4½, rarely taller

 

Identification

This is a 2 to 4½ tall, rarely taller, erect, biennial forb that rises on a single stem from a fleshy taproot. In its first year of growth this produces a rosette of basal leaves. In the second year it produces a hollow stalk that is branched, hairy, and ridged.

Basal leaves are large, heart shaped and indented at the base where they attach to long leaf stalks. They are 12 to 24 long and 6 to 14 wide. The leaf stalk is 6 to 20 long, hollow at least at the base, and not grooved. The upper surface is green with sparse short hairs. The lower surface is light green or gray-green, with a thin covering of matted, short, soft, woolly hairs. The leaf margins are wavy. By the time the flowers are fully open the basal leaves are usually withered.

Stem leaves are much smaller, alternate, and egg-shaped, getting progressively smaller toward the top of the stem. They are nearly hairless on both the upper and lower surfaces.

Flower heads appear in a clusters at the end of the stem and in the upper leaf axils. The clusters are crowded and densely packed.

The flower heads have about 30 purple, pink, or, sometimes, white florets, are on short stalks or on no stalks at all. The whorl of overlapping bracts subtending the flower head is ½ to 1 in diameter and hairless. The bracts are hooked at the tip. When dry the flower head becomes a bur resembling a thistle. Thistles, however, do not have hooked bracts.

 
Similar
Species

Woolly burdock (Arctium tomentosum) leaf margins are flat or only slightly wavy. The flower heads are densely cobwebby. The inflorescence is a group of stalked flower heads with the outer ones on longer stalks, forming a flat-topped or convex cluster.

Great burdock (Arctium lappa) leaf stalks, including near the base of the plant, are mostly solid and are deeply grooved. The flower heads are on long stalks. The inflorescence is a group of long-stalked flower heads with the outer ones on longer stalks, forming a flat-topped or convex cluster. The heads are larger, 1 to 1½ in diameter.


Distribution Distribution Map   Sources: 2, 3, 4, 5, 7, 22, 28.

Comments

Taxonomy
Cardueae is a synonym of the tribe name. Cynareae was published first and has precedence. Nevertheless, most sources use the name Cardueae for the tribe.


Taxonomy

Family:

Asteraceae (aster)

 

Subfamily:

Carduoideae

 

Tribe:

Cynareae

 

Subtribe:

Carduinae

 
Synonyms

Arctium pubens

Lappa minor

 
Common
Names

bardane

beggar’s button

burdock

clotbur

cockle-button

common burdock

cuckoo-button

 

lesser burdock

lesser burrdock

small burdock

smaller burdock

wild burdock

wild rhubarb


 

 

 

 

 

 

 

 

 

 

 

Glossary

axil

The upper angle where the leaf stalk meets the stem.

 

bract

Modified leaf at the base of a flower stalk or flower cluster.

       

Visitor Photos

   
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Bill Reynolds


  common burdock    

       
       
       

MinnesotaSeasons.com Photos

   

Plant

  common burdock   common burdock
       
  common burdock   common burdock
       
  common burdock   common burdock
       

Inflorescence

  common burdock   common burdock
       
  common burdock   common burdock
       

Leaves

  common burdock   common burdock
       
       

 

Camera

     

Slideshows

   
  Arctium minus
Matt Lavin
 
  Arctium minus  
 
About

Introduced biennial to short-lived perennial similar to Arctium lappa but perhaps standing upwards of just over 1 m tall, with basal leaves up to 20 cm long, flowering heads 15-30 mm wide and arranged in panicles of spikes. Arctium species do well in sites that are frequently disturbed.

 
     
  Common Burdock (Arctium minus)
Andree Reno Sanborn
 
  Common Burdock (Arctium minus)  
     
  Arctium minus | Lesser Burdock (Part 1 of 2)
SurvivalPlantsMemory
 
   
 
About

Uploaded on Feb 5, 2012

Visit Website: http://www.survivalplantsmemorycourse.com/

Photos used under protection of the "fair use" section (107) of the U.S. copyright act of 1976. http://www.youtube.com/watch?

 
   
  Arctium minus | Lesser Burdock (Part 2 of 2)
SurvivalPlantsMemory
 
   
 
About

Uploaded on Feb 5, 2012

Visit Website: http://www.survivalplantsmemorycourse.com/

Photos used under protection of the "fair use" section (107) of the U.S. copyright act of 1976. http://www.youtube.com/watch?

 

 

slideshow

     

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Other Videos

 
  Common Burdock / Arctium minus
momentaryvitality
 
   
 
About

Published on Jan 8, 2013

ww.momentaryvitality.ca

 
     
  Lesser Burdock (Arctium Minus) - 2012-07-14
W3stlander
 
   
 
About

Published on Jul 16, 2012

Lesser burdock (Bardane, Common burdock, Lesser burrdock).

----------------
De gewone klit (Arctium minus) is een vaste plant, die tot de composietenfamilie (Asteraceae) behoort.

 
     

 

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Visitor Sightings

   
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Bill Reynolds
8/11/2013

Location: Pennington County

common burdock


     
     
 

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