Nassella (All Species)

Also known as:
Nasella Nassela

General description

The nassella family are tussock-forming perennial grasses, with fibrous roots from small shallot-like bases. They all have extremely tough, thin, round leaves (300-500 x 1 mm) which do not break when pulled.

Seed spread short distances by wind & by attachment to wool, fur, clothing, machinery etc.

Nassella are long-lived and form pure colonies, producing masses of long-lived seeds which are extremely well picked up and dispersed. Nassella spp. produce distinctive sharp seeds that causes injury to stock and downgrades wool, skins and hides. These seeds can damage pelts, ruin sheep fleeces, blind livestock, and can penetrate the skin and hives and move through to the underlying muscle and cause abscesses. The same threat is posed to humans, which could suffer mechanical injury and subsequent secondary infection.

Site management

Recommended approaches

1. Report it immediately to the ARC, who will arrange for its control at their expense.
2. Refer to individual Nassella species for control information.

Caution: when using any herbicide or pesticide PLEASE READ THE LABEL THOROUGHLY to ensure that all instructions and safety requirements are followed.

Similar species

Chilean needle grass
Nassella neesiana

Mexican feather grass
Nassella tenuissima

nassella tussock
Nassella trichotoma

RPMS status

Surveillance - Whole Region
National Pest Plant Accord species - nationwide
nassella (all species) - Main species image