Arctium lappa

Species category

Vegetable

Common name

greater burdock

Diagnostic characters

Planting unit

AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.

Shape

Conical and curved

Size

  • Length: 6 mm
  • Width: 2 mm
  • Thickness: 1.5 mm

Color

Black blotches on dark yellow

Texture

Rough, longitudinal angles

Other structures

ApexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
with sharp rim and central stylarStylar:
The end of the fruit or seed that contains the style or the apical end.
lobe

Identification notes

AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
curved with angular longitudinal surfaces; light brown, with light black irregular slashes which are more distinct than for A. minus.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Asteraceae

Valid name

Arctium lappa L.

Synonyms

Lappa major Gaertn.

 Artium lappa . Achene is curved with angular longitudinal surfaces; light brown with light black irregular slashes.
Artium lappa. Achene is curved with angular longitudinal surfaces; light brown with light black irregular slashes.