Robert W. Freckmann Herbarium


  Arctium lappa L. image
Photographer: Janice Stiefel           

Botanical Illustration

Botanical Illustration

Botanical Illustration

Marion Sheehan

Janice Stiefel

Janice Stiefel
Family Asteraceae
Arctium lappa L.
great burdock
Arctium: from Greek arction, the name of a plant taken from arctos, "bear," because of the rough involucre
lappa: Latin name for a bur, rough
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Introduced - locally established
Plant: erect, biennial, 3'-9' tall forb
Flower: head up to 1 1/2" wide with pink to purplish disk flowers, bracts (phyllaries) with hooks curving inward; inflorescence a cluster of long-stalked heads; blooms Aug.-Oct.
Fruit:round, bristly, 1/2" clinging bur (inspiration for Velcro)
Leaf:alternate, large, heart-shaped base, on stalks getting shorter toward the top, lower stalks almost solid
Habitat: roadsides, disturbed sites
(Glossary)

More Information Natural Communities Herbarium Specimens
All Arctium list Ethnobotany Information Google- Images or Text

Flora of North America (off site)
Synonyms 
Lappa major Gaertn.

         
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