Asphodelus fistulosus

Species category

Flower, Weed

Common name

onionweed

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

ObovateObovate:
Inverted egg shaped with apical end the broadest.
; adjoining longitudinal flat surfaces.

Size

Length: 2.5–3 mm
Width: 1.5 mm
Thickness: 1.5 mm

Color

Brown

Texture

Large longitudinal ribs on flat surface are deeply and regularly indented.

Other structures

Surface opposite ridge is deeply transversely ribbed.

Identification notes

Flattened apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
.

Noxious weed seed categories

State Noxious Weed: Arizona, California
Federal

Learn more on ITP's Federal Noxious Weed Disseminules tool.

AOSA examination list

Not included

Nomenclature

Family

Liliaceae

Valid name

Asphodelus fistulosus L.

Synonyms

Asphodelus tenuifolius Cav.

Asphodelus fistulosus. Ventral view (top) and lateral view (bottom) of seeds.	Asphodelus fistulosus. Ventral view (top) and lateral view (bottom) of seeds.Photo by Julia Scher, USDA-APHIS-PPQ.
Asphodelus fistulosus. Dorsal view of seeds. Photo by Julia Scher, USDA-APHIS-PPQ.	Asphodelus fistulosus. Capsule (dehisced, seeds released).Photo by Julia Scher, USDA-APHIS-PPQ.
Asphodelus fistulosus. Capsule (dehisced, seeds released).Photo by Julia Scher, USDA-APHIS-PPQ.	Asphodelus fistulosus. Seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Asphodelus fistulosus. Surface view. Photo by Julia Scher, USDA-APHIS-PPQ.	Asphodelus tenifolius (syn). Ventral view (top) and lateral view (bottom) of seeds. Photo by Julia Scher, USDA-APHIS-PPQ.
Asphodelus tenifolius (syn). Dorsal view of seeds. Photo by Julia Scher, USDA-APHIS-PPQ.	Asphodelus tenufolius (syn). Surface view. Photo by Julia Scher, USDA-APHIS-PPQ.
Asphodelus tenifolius (syn). Seed. Photo by Julia Scher, USDA-APHIS-PPQ.