Triumfetta semitriloba

Species category

Weed

Common name

dadangsi, masiksik lahe, Sacramento burrbark, Sacramento burbark, mosote, burweed

Diagnostic characters

Planting unit

BurrBurr:
Has spikelets or flowers that are compressed closely together by lacking a central axis. The spikelet glumes are hard and pointed, e.g. buffalograss.

Shape

Spiny and globose

Size

  • Length 4 mm
  • Width 4 mm
  • Thickness 4 mm

Color

Reddish-brown

Texture

Sparsely covered with short hairs

Other structures

Prominent, stiff, hooked spines

Identification notes

The photo is of a fruitFruit:
A mature ovary and any associated parts.
(burrBurr:
Has spikelets or flowers that are compressed closely together by lacking a central axis. The spikelet glumes are hard and pointed, e.g. buffalograss.
). A seed was not available. Apparently the burrBurr:
Has spikelets or flowers that are compressed closely together by lacking a central axis. The spikelet glumes are hard and pointed, e.g. buffalograss.
is the main dispersal unit.

Noxious weed seed categories

State Noxious Weed: Hawaii

AOSA examination list

Not included

Nomenclature

Family

Malvaceae

Valid name

Triumfetta semitriloba Jacq.

 Triumfetta semitriloba.  Burrs with prominent, stiff, hooked spines. 
Triumfetta semitriloba. Burrs with prominent, stiff, hooked spines.