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Penstemon barbatus

Species category

Flower, Weed

Common name

beardlip penstemon

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

Irregularly D-shaped

Size

  • Length 1.5–2.2 mm
  • Width 1–1.3 mm
  • Thickness 0.5–0.7 mm

Color

Various shades of brown

Texture

Stippled

Other structures

Some seeds have ridges between flat surfaces.

Identification notes

Stippled surface is also very rough.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Plantaginaceae

Valid name

Penstemon barbatus (Cav.) Roth

Penstemon barbatus . True seeds with very rough stipples and have various shades of brown.
Penstemon barbatus. True seeds with very rough stipples and have various shades of brown.
Penstemon barbatus . True seeds with very rough stipples and have various shades of brown.
Penstemon barbatus. True seeds with very rough stipples and have various shades of brown.