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Phaseolus coccineus

Species category

Flower

Common name

scarlet runner

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.
 to reniform (kidney-shaped)

Size

  • Length 1 mm
  • Width 0.5 mm
  • Thickness 0.5 mm

Color

Various

Texture

Smooth

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is marginal and near center of long dimension.

Identification notes

This species is highly variable in size and color, from white to mottled black and brown.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Fabaceae

Valid name

Phaseolus coccineus L.

Synonyms

Phaseolus multiflorus Lam

Phaseolus coccineus. True seeds that are highly variable in size and color. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Phaseolus coccineus. True seeds that are highly variable in size and color. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.