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Datura wrightii

Species category

Weed

Common name

sacred thorn-apple

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

D-shaped, compressed

Size

  • Length 4–5 mm
  • Width 4.2–6 mm
  • Thickness 0.5–0.6 mm

Color

Brown

Texture

Small stipplesStipples:
Numerous small dots or specks.

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is large and flared on the straight margin.

Identification notes

Strong groove follows the margin on the seed perimeter.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Solanaceae

Valid name

Datura wrightii Regel

Synonyms

Datura inoxia Mill. ssp. quinquecuspida (Torr.) Barcl.
Datura metel L. var. quinquecuspida Torr.

Datura wrightii. Seeds with a strong groove following the margin on the seed perimeter.
Datura wrightii. Seeds with a strong groove following the margin on the seed perimeter.