Bassia scoparia

Species category

Weed

Common name

burningbush, kochia, Mexican fireweed, mirabel, mock cypress

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

ObovateObovate:
Inverted egg shaped with apical end the broadest.

Size

  • Length: 2 mm
  • Width: 1 mm
  • Thickness: 0.5 mm

Color

Black with yellow overtones

Texture

Seed-glossy.

FruitFruit:
A mature ovary and any associated parts.
-dull.

SepalSepal:
The outermost whorl of leaf-like structures attached to the receptacle. Collectively, all the sepals on a flower are called the calyx.
ends-dimpled.

Other structures

PericarpPericarp:
Fruit wall; derived from the ovary wall.
and sepals are often present.

Identification notes

The seed unitSeed unit:
The structure usually regarded as a seed in planting practices and in commercial channels, consisting of a true seed with or without accessory structures, as defined in Section 2.6 of the AOSA Rules. See also true seed.
can be a seed, fruitFruit:
A mature ovary and any associated parts.
, or a flower. The embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
is visible through the seed coatSeed coat:
The protective covering of a seed usually composed of the inner and outer integuments. Also called the testa.
and appears as a long, U-shaped structure with the ends together. The embryoEmbryo:
A rudimentary plant contained in a seed, usually consisting of a more or less differentiated axis and attached cotyledon(s).
lies in the margin of the seed.

Noxious weed seed categories

State Noxious Weed: Arizona, Ohio

AOSA examination list

Included

Nomenclature

Family

Chenopodiaceae

Valid name

Bassia scoparia (L.) A.J. Scott

Synonyms

Bassia sieversiana (Pall.) W.A. Weber
Kochia alata Bates
Kochia scoparia (L.) Schrad.
Kochia scoparia (L.) Schrad. var. culta Farw.
Kochia scoparia (L.) Schrad. var. pubescens Fenzl
Kochia scoparia (L.) Schrad. var. subvillosa Moq.
Kochia scoparia (L.) Schrad. var. trichophila (Stapf) L.H. Bailey, database artifact
Kochia scoparia (L.) Schrad. var. trichophylla (Stapf) L.H. Bailey
Kochia sieversiana (Pall.) C.A. Mey.
Kochia trichophila Stapf, database artifact
Kochia trichophylla Stapf

 Bassia scoparia.  Seeds with the pericarp and sepals are often present. 
Bassia scoparia. Seeds with the pericarp and sepals are often present. 
 Bassia scoparia.  Apical view of fruit. Two disseminules with tubercles, two with wings. Photo courtesy of USDA-APHIS-PPQ.
Bassia scoparia. Apical view of fruit. Two disseminules with tubercles, two with wings. Photo courtesy of USDA-APHIS-PPQ.