Brassica rapa subsp. nipposinica

Species category

Vegetable

Common name

mibuna, mizuna

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

Globose

Size

  • Length: 2 mm
  • Width: 2 mm
  • Thickness: 2 mm

Color

Reddish-gray

Texture

Reticulum is weak and without stipplesStipples:
Numerous small dots or specks.
.

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
rises slightly above the seed surface.

Identification notes

Seeds are spherical. Reticulum is evident but not strong. StipplesStipples:
Numerous small dots or specks.
are not on the reticulum and are not strongly defined. Color is reddish to gray.

Comments

Seed of this species is considered noxious only as a contaminant. Check individual states for interpretations.

Noxious weed seed categories

State Noxious Weed: Alabama, Arizona, Connecticut, Florida, Georgia, Illinois, Kansas, Louisiana, Maine, Massachusetts, Mississippi, Nebraska, New Hampshire, North Carolina, Oklahoma, Rhode Island, South Carolina, Tennessee, Texas, Virginia, Vermont
Seed of this species is considered noxious only as a contaminant. check individual states for interpretations.

AOSA examination list

Not included

Nomenclature

Family

Brassicaceae

Valid name

Brassica rapa L. subsp. nipposinica (L. H. Bailey) Kitam.

Synonyms

Brassica japonica Makino
Brassica nipposinica L. H. Bailey var. laciniifolia L.H. Bailey
Brassica rapa L. var. laciniifolia (L.H. Bailey) Kitam.

 Brassica rapa  subsp . nipposinica.  Reddish-gray seeds with a weak reticulum and no stipples.
Brassica rapa subsp. nipposinica. Reddish-gray seeds with a weak reticulum and no stipples.
 Brassica rapa  subsp . nipposinica.  Seeds with a weak reticulum and no stipples.
Brassica rapa subsp. nipposinica. Seeds with a weak reticulum and no stipples.