Toowoomba Canary-grass

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Toowoomba Canary-grass - Russell Best via NatureShare

Phalaris aquatica


A large tussock of coarse growth. Rigid flowering stems to 1 m high. The flowerheads are dense spike-like clusters. Leaves blue-green, 15-40 cm long and 4-15 mm wide, hairless and flat.


Details
Flora Type
Grasses
Distinctive Features

Cylindrical seedheads held at the top of long flower stems. Seeds have no awns (bristle).

Biology

Perennial. Peak growth occurs in spring and autumn. Prefers fertile, seasonally moist sites. Commonly spreads from pastures, road verges and drainage ditches to adjacent indigenous vegetation. Grows densely and if not grazed or mown, browns off in summer becoming a potential fire hazard.

Native Status
Introduced
Taxonomy
Phylum
Tracheophyta (Vascular Plants)
Class
Magnoliopsida (Flowering Plants)
Order
Poales
Family
Poaceae
Genus
Phalaris
Species
aquatica

Widely used as a pasture species where annual rainfall is more than 450 mm. Very invasive in remnant grassy native vegetation and may completely dominate stands.


Interesting Facts
Native Status
Introduced