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Oenothera gaura

Species category

Weed

Common name

biennial beeblossom

Diagnostic characters

Planting unit

CapsuleCapsule:
A dry, dehiscent fruit derived from a compound ovary.

Shape

SpatulateSpatulate:
Having a narrow base and rounded apex. Pear-shaped.

Size

  • Length 7 mm 
  • Width 2 mm 
  • Thickness 2 mm 

Color

Light brown 

Texture

Smooth

Other structures

There are four longitudinal bracts surrounding the capsuleCapsule:
A dry, dehiscent fruit derived from a compound ovary.
.

Identification notes

CapsuleCapsule:
A dry, dehiscent fruit derived from a compound ovary.
 is mostly round in cross section. Shape is narrow at the base, expands midway, then decreases approaching the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
. Intermediate ridges not present.

Noxious weed seed categories

State Noxious Weed: Hawaii

AOSA examination list

Not included

Nomenclature

Family

Onagraceae

Valid name

Oenothera gaura W.L. Wagner & Hoch

Synonyms

Gaura biennis L.

From Left to Right: 1. Oenothera curtiflora 2. Oenothera hispida  3. Oenothera gaura . There are four longitudinal bracts surrounding the capsule.
From Left to Right: 1. Oenothera curtiflora 2. Oenothera hispida 3. Oenothera gaura. There are four longitudinal bracts surrounding the capsule.