Rubus ulmifolius | SeedImages

Species category

Shrub or Tree

Common name

elmleaf blackberry

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

D-shaped

Size

Length 3.2–4 mm
Width 2–2.7 mm
Thickness 1.5–1.7 mm

Color

Light brown

Texture

Reticulate

Other structures

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

Identification notes

Seeds often covered with dried fruitFruit:
A mature ovary and any associated parts.
material.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Rosaceae

Valid name

Rubus ulmifolius Schott

Synonyms

Rubus ×mussolinii Hruby

Rubus ulmifolius. True seeds that are covered with dried fruit material. Photo by Julia Scher, USDA-APHIS-PPQ.	Rubus ulmifolius. Berry. Photo by Julia Scher, USDA-APHIS-PPQ.
Rubus ulmifolius. True seeds that are covered with dried fruit material. Photo by Julia Scher, USDA-APHIS-PPQ.	Rubus ulmifolius. True seeds with a curved ridge on the margin. Photo by Julia Scher, USDA-APHIS-PPQ.