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Primula sp.

Species category

Flower

Common name

primrose

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

Blocky and irregular

Size

  • Length 1–1.6 mm 
  • Width 0.8–1 mm 
  • Thickness 0.8–1 mm 

Color

Reddish-brown

Texture

Deeply reticulate with high irregular edges

Other structures

The edges of flat surfaces are very sharp. HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is on the center of a flat surface.

Identification notes

Seeds are irregular box-like. Surface is extremely fuzzy due to high edges of the reticulum. Interspaces of the reticulum are obscure.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Primulaceae

Valid name

Primula L.

Primula sp. True seeds that are extremely fuzzy because of the high edges of the reticulum.
Primula sp. True seeds that are extremely fuzzy because of the high edges of the reticulum.
Primula sp. Box-like true seeds with the hilum at the center of a flat surface.
Primula sp. Box-like true seeds with the hilum at the center of a flat surface.