Pseudotsuga menziesii

Species category

Shrub or Tree

Common name

Douglas-fir, red fir, Douglas spruce, Oregon pine

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

Irregularly obovateObovate:
Inverted egg shaped with apical end the broadest.

Size

  • Length 6–7 mm 
  • Width 3–4 mm 
  • Thickness 2–3 mm 

Color

Brown

Texture

Smooth

Other structures

Fragment of wing often surrounds the seed.

Identification notes

Seeds enclosed in wing fragment are irregularly triangular.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Pinaceae

Valid name

Pseudotsuga menziesii (Mirb.) Franco

 Pseudotsuga menziesii.  True seeds that are enclosed in wing fragments that are irregularly triangular. 
Pseudotsuga menziesii. True seeds that are enclosed in wing fragments that are irregularly triangular.