Araujia sericifera

Species category

Weed

Common name

white bladderflower, bladder flower

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

Oblanceolate with a truncate apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.

Size

  • Length: 6.9–7 mm
  • Width: 2–2.7 mm
  • Thickness: 1–1.5 mm

Color

Black and brown

Texture

ScurfyScurf:
Having flakes on the surface.

Other structures

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HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
on pointed end

Identification notes

VentralVentral:
Adaxial; of the side of an organ facing the axis (compare dorsal).
side is very rough with some longitudinal ridges. DorsalDorsal:
Upper side or back of a seed or fruit.
side is smoother with central longitudinal groove.

Noxious weed seed categories

State Noxious Weed: California

AOSA examination list

Not included

Nomenclature

Family

Asclepiadaceae

Valid name

Araujia sericifera Brot.

Synonyms

Araujia sericofera Brot., orth. var.

 Araujia sericifera.  The ventral side is very rough with some longitudinal ridges. Dorsal side is smoother with a central longitudinal groove.
Araujia sericifera. The ventral side is very rough with some longitudinal ridges. Dorsal side is smoother with a central longitudinal groove.