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Rubus spectabilis

Species category

Shrub or Tree

Common name

salmonberry

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 2.5–3 mm 
  • Width 1.4–1.8 mm 
  • Thickness 1–1.2 mm 

Color

Light brown 

Texture

Large equilateral reticulum; smooth and shiny surface.

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is on straight margin.

Identification notes

Seed is the largest in this group. It is conspicuously glossy in the fruitFruit:
A mature ovary and any associated parts.
 coat with a large reticulum.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Rosaceae

Valid name

Rubus spectabilis Pursh

Synonyms

From Left to Right: 1. Rubus trivialis 2. Rubus spectabilis 3. Rubus idaeus.    Rubus spectabils is the largest in this group. It is conspicuously glossy in the fruit coat with a large reticulum.
From Left to Right: 1. Rubus trivialis 2. Rubus spectabilis 3. Rubus idaeus.  Rubus spectabils is the largest in this group. It is conspicuously glossy in the fruit coat with a large reticulum.
Rubus spectabilis. True seeds with a smooth and shiny surface. Photo by Julia Scher, USDA-APHIS-PPQ.
Rubus spectabilis. True seeds with a smooth and shiny surface. Photo by Julia Scher, USDA-APHIS-PPQ.