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Mimosa diplotricha

Species category

Weed

Common name

giant false sensitive plant

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

OvateOvate:
Egg-shaped with basal end the broadest.
 to obovateObovate:
Inverted egg shaped with apical end the broadest.

Size

  • Length 3–3.5 mm
  • Width 2–2.7 mm
  • Thickness 0.9–1.2 mm

Color

Light to dark brown

Texture

Dull and smooth

Other structures

Horseshoe-shaped line on flat surface

Identification notes

This seed is one of many with a line on the flat surface that follows the circular margin. The horseshoe-shaped line is open to the hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 end, and is located halfway between the seed center and the margin.

Noxious weed seed categories

State Noxious Weed: Hawaii
Federal

Learn more on ITP's Federal Noxious Weed Disseminules tool.

AOSA examination list

Not included

Nomenclature

Family

Fabaceae

Valid name

Mimosa diplotricha C. Wright

Synonyms

Mimosa invisa Mart. ex Colla

Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds with a horseshoe-shaped line that are open to the hilum end and are located halfway between the seed center and the margin. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds with a horseshoe-shaped line on a flat surface. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Mimosa diplotricha. Seeds with a horseshoe-shaped line on a flat surface. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seed hilum. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seed pods. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seed pods. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds in prickly pods. Photo by Julia Scher, USDA-APHIS-PPQ.
Mimosa diplotricha. Seeds in prickly pods. Photo by Julia Scher, USDA-APHIS-PPQ.