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Rubus hispidus

Species category

Shrub or Tree

Common name

bristly dewberry

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 2–3 mm
  • Width 1.8–2 mm
  • Thickness 1.2–1.6 mm

Color

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 the straight margin.

Identification notes

Seed 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 hispidus L.

Synonyms

Rubus hispidus L. var. cupulifer L.H. Bailey
Rubus hispidus L. var. obovalis (Michx.) Fernald
Rubus sempervirens Bigelow

Rubus hispidus. Berry. Photo by Julia Scher, USDA-APHIS-PPQ.
Rubus hispidus. Berry. Photo by Julia Scher, USDA-APHIS-PPQ.
Rubus hispidus. True seeds that are often covered with dried fruit material. Photo by Julia Scher, USDA-APHIS-PPQ.
Rubus hispidus. True seeds that are often covered with dried fruit material. Photo by Julia Scher, USDA-APHIS-PPQ.