Erysimum cheiri

Species category

Flower, Weed

Common name

Aegean wallflower

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

OvalOval:
Broadly elliptic.

Size

  • Length 2.9–3 mm
  • Width 2–2.1 mm
  • Thickness 1 mm

Color

Brown

Texture

Rough

Other structures

Groove on the sides separating the cotyledonCotyledon:
The modified storage leaf or pair of leaves of an embryo and seedling (see primary leaf).
and radicleRadicle:
The rudimentary root of the embryo, developing into the primary root after emergence from the seed coat.
lobes.

Identification notes

Large developed hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
on the basalBasal:
The base of the fruit or seed opposite the apical end.
end.

Noxious weed seed categories

State Noxious Weed: Kansas

AOSA examination list

Not included

Nomenclature

Family

Brassicaceae

Valid name

Erysimum cheiri (L.) Crantz

Synonyms

Cheiranthus cheiri L.

 Erysimum cheiri.  Seeds with a large developed hilum on the basal end.
Erysimum cheiri. Seeds with a large developed hilum on the basal end.
 Erysimum cheiri.  Multiple views of seed. Photo courtesy of USDA-APHIS-PPQ.
Erysimum cheiri. Multiple views of seed. Photo courtesy of USDA-APHIS-PPQ.