Brassica rapa subsp. pekinensis

Species category

Vegetable

Common name

celery cabbage, Chinese cabbage, napa cabbage, nappa cabbage, Peking cabbage, pe-tsai, Shantung cabbage

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

Texture

Reticulum with 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 flattish with small interspaces containing stipplesStipples:
Numerous small dots or specks.
. StipplesStipples:
Numerous small dots or specks.
on interspaces are small, roundish, and shiny.

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
Restricted in Georgia. Check individual states for interpretations.

AOSA examination list

Not included

Nomenclature

Family

Brassicaceae

Valid name

Brassica rapa L. subsp. pekinensis (Lour.) Hanelt

Synonyms

Brassica campestris L. subsp. pekinensis (Lour.) G. Olsson
Brassica pekinensis (Lour.) Rupr.

 Brassica rapa  subsp.  pekinensis.  Seeds with stipples on interspaces that are small, roundish, and shiny.
Brassica rapa subsp. pekinensis. Seeds with stipples on interspaces that are small, roundish, and shiny.
 Brassica rapa  subsp.  pekinensis.  Seeds with stipples on interspaces that are small, roundish, and shiny.
Brassica rapa subsp. pekinensis. Seeds with stipples on interspaces that are small, roundish, and shiny.