Verbascum thapsus

Species category

Weed

Common name

common mullein, big taper, flannel plant, velvet dock, velvet plant, woolly mullein, flannel mullein, great mullein, mullein

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

Cylindrical

Size

  • Length 0.6–0.8 mm
  • Width 0.4–0.6 mm
  • Thickness 0.4–0.6 mm

Color

Brown

Texture

Heavy, ornate and wavy longitudinal ridges

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
is on narrowest end of cylinder.

Identification notes

Seed is cylindrical but very slightly conical. Ridges are ornate in that pairs wave in opposite directions from each other, creating a symmetrical pattern.

Noxious weed seed categories

State Noxious Weed: Hawaii

AOSA examination list

Included

Nomenclature

Family

Scrophulariaceae

Valid name

Verbascum thapsus L.

 Verbascum thapsus.  True seeds with the hilum on the narrowest end of the cylinder.
Verbascum thapsus. True seeds with the hilum on the narrowest end of the cylinder.