Piper aduncum

Species category

Weed

Common name

spiked pepper, higuillo de hoja menuda

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

Globose

Size

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

Color

Black with yellow caruncleCaruncle:
An appendage or outgrowth of the outer integument of the seed, e.g. leafy spurge.

Texture

Seed: smooth

CaruncleCaruncle:
An appendage or outgrowth of the outer integument of the seed, e.g. leafy spurge.
: amorphous.

Other structures

Large amorphous structure is over the hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
area.

Identification notes

The seed is small, but the large, pillowy structure over the hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
area increases the seed size substantially.

Noxious weed seed categories

State Noxious Weed: Hawaii

AOSA examination list

Not included

Nomenclature

Family

Piperaceae

Valid name

Piper aduncum L.

 Piper aduncum.  True seeds that are black with a yellow caruncle. 
Piper aduncum. True seeds that are black with a yellow caruncle.