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Desmodium tortuosum

Species category

Agricultural, Weed

Common name

dixie ticktrefoil

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 2–2.9 mm
  • Width 1.5–2 mm
  • Thickness 1–1.5 mm

Color

Dark brown; hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 ring is black.

Texture

Smooth and shiny

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 on the long margin

Identification notes

Slight indentation on the margin at the hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 location.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Fabaceae

Valid name

Desmodium tortuosum (Sw.) DC.

Synonyms

Desmodium annuum A. Gray p.p.
Desmodium purpureum (Mill.) Fawc. & Rendle
Meibomia purpurea (Mill.) Vail
Meibomia tortuosa (Sw.) Kuntze

Desmodium tortuosum. Dark brown seeds with a black hilum ring.
Desmodium tortuosum. Dark brown seeds with a black hilum ring.