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Plantago coronopus

Species category

Weed

Common name

buckhorn plantain

Diagnostic characters

Planting unit

True seedTrue seed:
A mature fertilized ovule consisting of an embryo, with or without and external food reserve (e.g., endosperm) enclosed by the testa.

Shape

OvalOval:
Broadly elliptic.

Size

  • Length 1–1.5 mm
  • Width 0.6–0.9 mm
  • Thickness 0.5–0.7 mm

Color

Brown

Texture

Stippled

Other structures

StipplesStipples:
Numerous small dots or specks.
 are strong on dorsalDorsal:
Upper side or back of a seed or fruit.
 side but weak on ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side.

Identification notes

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is round and near the center on the ventralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side.

Noxious weed seed categories

State Noxious Weed: Alaska, Connecticut, Mississippi, Washington 

AOSA examination list

Not included

Nomenclature

Family

Plantaginaceae

Valid name

Plantago coronopus L.

Synonyms

Plantago coronopus L. ssp. commutata (Guss.) Pilg.

Plantago coronopus. True seeds with strong stipples on the dorsal side but weak on the ventral side. 
Plantago coronopus. True seeds with strong stipples on the dorsal side but weak on the ventral side.