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Thunbergia alata

Species category

Flower, Weed

Common name

blackeyed Susan vine

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

Globose

Size

  • Length 4–4.5 mm
  • Width 4–4.5 mm
  • Thickness 4–4.5 mm

Color

Gray

Texture

Net like reticulationReticulated:
Resembling a net or network, especially having veins, fibers, or lines crossing the surface.  

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is in the large opening.

Identification notes

Reticulations are lighter-colored and do not occupy the hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 area.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Acanthaceae

Valid name

Thunbergia alata Bojer ex Sims

Thunbergia alata. True seeds with a large opening to the internal part of the seeds, which is the hilum.
Thunbergia alata. True seeds with a large opening to the internal part of the seeds, which is the hilum.