Nigella sp.

Species category

Flower, Weed

Common name

nigella

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

ObovateObovate:
Inverted egg shaped with apical end the broadest.

Size

  • Length 2.2–3 mm
  • Width 2–2.2. mm
  • Thickness 1.2–1.3 mm

Color

Black

Texture

ReticulatedReticulated:
Resembling a net or network, especially having veins, fibers, or lines crossing the surface.  

Other structures

Large rib follows the entire margin of the seed.

Identification notes

Reticulations mostly transverseTransverse:
Set crosswise, crossing or at right angles.
. The bases of the reticulations are densely stippled.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Ranunculaceae

Valid name

Nigella L.

 Nigella  sp. Black seeds with a large rib following the entire margin of the seed.
Nigella sp. Black seeds with a large rib following the entire margin of the seed.