Melampodium leucanthum

Species category

Flower, Weed

Common name

plains blackfoot, plains blackfoot daisy

Diagnostic characters

Planting unit

Achene 

Shape

Curved rectangular

Size

  • Length 2.5–3.5 mm
  • Width 2–2.8 mm
  • Thickness 1–1.8 mm

Color

Gray

Texture

Large longitudinal ribs and rough surface

Other structures

Area between ribs is rough and irregular.

Identification notes

Rectangular hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
at basalBasal:
The base of the fruit or seed opposite the apical end.
end.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Asteraceae

Valid name

Melampodium leucanthum Torr. & A. Gray

 Melampodium leucanthum.  Achenes with large longitudinal ribs with roughness in between them.
Melampodium leucanthum. Achenes with large longitudinal ribs with roughness in between them.