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Ipomoea tricolor

Species category

Flower, Weed

Common name

grannyvine

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.

Size

  • Length 7–7.5 mm
  • Width 3.4–4 mm
  • Thickness 3–4 mm

Color

Black-mottled

Texture

Smooth

Other structures

Basal hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is light brown. Longitudinal rib extends from hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 to apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
.

Identification notes

DorsalDorsal:
Upper side or back of a seed or fruit.
 view shows two flat sides separated by the rib. VentralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side is rounded.

Noxious weed seed categories

State Noxious Weed: Arizona, Arkansas, Kansas, Louisiana, Michigan, Mississippi, Nebraska, New Mexico, North Carolina, Oklahoma, Texas

AOSA examination list

Not included

More information

For more information, see ISMA fact sheet, Ipomoea spp.

Nomenclature

Family

Convolvulaceae

Valid name

Ipomoea tricolor Cav.

Ipomoea tricolor. Seeds with a light brown hilum on the basal end.
Ipomoea tricolor. Seeds with a light brown hilum on the basal end.
Ipomoea tricolor. Seeds with a dorsal view that shows two flat sides separated by the rib.
Ipomoea tricolor. Seeds with a dorsal view that shows two flat sides separated by the rib.