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Phaseolus lunatus

Species category

Vegetable

Common name

sieva bean

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), flattened

Size

  • Length 1.5 mm
  • Width 1 mm
  • Thickness 0.5 mm

Color

White

Texture

Smooth

Other structures

Translucent lines radiating from hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 to outer margin.

Identification notes

Size varies greatly in this species. Color is uniformly white.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Fabaceae

Valid name

Phaseolus lunatus L.

Synonyms

Phaseolus inamoenus L.
Phaseolus limensis Macfad.
Phaseolus lunatus L. var. lunonanus L.H. Bailey
Phaseolus tunkinensis Lour.

Phaseolus lunatus. White true seeds with translucent lines radiating from the hilum to the outer margin. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.
Phaseolus lunatus. White true seeds with translucent lines radiating from the hilum to the outer margin. Photo courtesy of Colorado State University, Department of Soil and Crop Sciences.