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Securigera varia

Species category

Agricultural, Revegetation or Rangeland

Common name

crownvetch, purple crownvetch

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

Cylindrical and rectangular

Size

  • Length 3–3.5 mm
  • Width 1–1.5 mm
  • Thickness 1–1.2 mm

Color

Brown to reddish-brown

Texture

Dull to smooth

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is midway of the longest dimension.

Identification notes

Seed is sometimes encased in a segment of the podPod:
A dehiscent fruit produced by leguminous plants (beans, peas). Also known as a legume.
 (fruitFruit:
A mature ovary and any associated parts.
 coat). When this situation occurs, the unit is technically a lomentLoment:
A usually dry fruit derived from a single carpel that breaks transversely into one-seeded fruit segments, derived from a single, superior, simple ovary
.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Fabaceae

Valid name

Securigera varia (L.) Lassen

Synonyms

Coronilla varia L.

Securigera varia. True seeds that are sometimes encased in a segment of the pod (fruit coat). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Securigera varia. True seeds that are sometimes encased in a segment of the pod (fruit coat). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.