Oenothera speciosa

Species category

Flower, Weed

Common name

pinkladies, showy evening 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

ObovateObovate:
Inverted egg shaped with apical end the broadest.

Size

  • Length 1–1.2 mm 
  • Width 0.5–0.6 mm 
  • Thickness 0.5–0.6 mm 

Color

Light brown 

Texture

Finely granularGranular:
Resembling or consisting of small grains or particles.

Other structures

Occasional rib present from base to apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
.

Identification notes

ApexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
somewhat flattened.

Noxious weed seed categories

State Noxious Weed: Hawaii

AOSA examination list

Not included

Nomenclature

Family

Onagraceae

Valid name

Oenothera speciosa Nutt.

Synonyms

Hartmannia speciosa (Nutt.) Small
Oenothera delessertiana Steud.
Oenothera speciosa Nutt. var. childsii (L.H. Bailey) Munz

 Oenothera speciosa.  True seeds with a somewhat flattened apex.
Oenothera speciosa. True seeds with a somewhat flattened apex.