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Oenothera perennis

Species category

Flower, Weed

Common name

little evening primrose, little 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

Obovate 

Size

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

Color

Brown

Texture

Stippulate

Other structures

Large marginal rib present.

Identification notes

Seeds moderately irregular in shape.

Noxious weed seed categories

State Noxious Weed: Hawaii

AOSA examination list

Not included

Nomenclature

Family

Onagraceae

Valid name

Oenothera perennis L.

Synonyms

Kneiffia perennis (L.) Pennell
Kneiffia pumila (L.) Spach
Oenothera perennis L. var. rectipilis (S.F. Blake) S.F. Blake
Oenothera perennis L. var. typica Munz

Oenothera perennis. True seeds with a large marginal rib.
Oenothera perennis. True seeds with a large marginal rib.