Solanum interius

Species category

Weed

Common name

deadly nightshade

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

LenticularLenticular:
Lens-shaped, circular in outline with convex sides.
with hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
point

Size

  • Length 1.8–2 mm
  • Width 1.3–1.5 mm
  • Thickness 0.4–0.6 mm

Color

Light yellow

Texture

Finely reticulate

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
extends beyond the margin.

Identification notes

Seed is light-colored. ReticulationReticulated:
Resembling a net or network, especially having veins, fibers, or lines crossing the surface.  
is not strong. HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
protrudes outside the margin.

Noxious weed seed categories

State Noxious Weed: Arizona, Kansas

AOSA examination list

Not included

Nomenclature

Family

Solanaceae

Valid name

Solanum interius Rydb.

 Solanum interius.  True seeds that are light colored and the reticulation is not strong.  
Solanum interius. True seeds that are light colored and the reticulation is not strong.