Eschscholzia californica subsp. mexicana

Species category

Flower, Weed

Common name

California poppy

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

Globose to ovalOval:
Broadly elliptic.

Size

  • Length 1.5–1.8 mm 
  • Width 1.2–1.5 mm 
  • Thickness 1.2–1.5 mm 

Color

Black with brown reticulations

Texture

Extremely stippled

Other structures

A rapheRaphe:
A seam or ridge found on seeds.
-like line from the base to the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.

Identification notes

Stippling is so intense it sometimes hides the reticulations.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Papaveraceae

Valid name

Eschscholzia californica Cham. subsp. mexicana (Greene) C. Clark

Synonyms

Eschscholzia mexicana Greene

 Eschscholzia californica  ssp.  mexicana.  Seeds with intense stippling.
Eschscholzia californica ssp. mexicana. Seeds with intense stippling.