Rosa multiflora

Species category

Shrub or Tree

Common name

multiflora rose

Diagnostic characters

Planting unit

AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.

Shape

ObovateObovate:
Inverted egg shaped with apical end the broadest.

Size

  • Length 3.5 mm
  • Width 2 mm
  • Thickness 2 mm

Color

Yellow and red variegated, yellow apicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
cap

Texture

Tubercles are irregularly scattered

Other structures

A cap on the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
is present.

Identification notes

AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
is not symmetrical, tends to be more curved on one side than on the other. Some achenesAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
are not uniformly rounded but have flat facets on the surface. ApicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
cap varies in size.

Noxious weed seed categories

State Noxious Weed: Pennsylvania, West Virginia

AOSA examination list

Included

Nomenclature

Family

Rosaceae

Valid name

Rosa multiflora Thunb.

Synonyms

Rosa multiflora Thunb. f. multiflora 
Rosa multiflora
Thunb. f. watsoniana (Crép.) Matsum
Rosa multiflora
Thunb. var. cathayensis Rehder & E.H. Wilson
Rosa multiflora Thunb. var. multiflora

 Rosa multiflora.  Achenes with a cap on the apex.
Rosa multiflora. Achenes with a cap on the apex.
 Rosa multiflora.  Achenes with a cap on the apex.
Rosa multiflora. Achenes with a cap on the apex.