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Aeschynomene indica

Species category

Weed

Common name

Indian jointvetch

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

Reniform (kidney shaped)

Size

  • Length: 3.5 mm
  • Width: 2 mm
  • Thickness: 1 mm

Color

Brown or black

Texture

Hard and smooth

Other structures

RadicleRadicle:
The rudimentary root of the embryo, developing into the primary root after emergence from the seed coat.
 lobe short and divergent with no noticeable "furrow" line.

Identification notes

Occasionally the seed is enclosed in a segment of the fruitFruit:
A mature ovary and any associated parts.
.

Comments

The hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is very noticeable and situated within the marginal notch of the seed. The strophiolar lens is often projected from the surface of the cotyledonary lobe adjacent to the hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
.

Noxious weed seed categories

State Noxious Weed: Arkansas, California, Hawaii, Louisiana

AOSA examination list

Included

Nomenclature

Family

Fabaceae

Valid name

Aeschynomene indica L.

Aeschynomene indica.  Seed encased in fruit segment (left), reniform-shaped seed (right). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Aeschynomene indica. Seed encased in fruit segment (left), reniform-shaped seed (right). Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Aeschynomene indica.  Reniform-shaped seed with a short divergent radicle lobe. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Aeschynomene indica. Reniform-shaped seed with a short divergent radicle lobe. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.