Weeds of Wurundjeri Walk

Botanical Name: triquetrum A Noxious Weed

Common Name: Angled (or Three Cornered )

Origin: Mediterranean region

Photo/Line Drawing:

(Photos courtesy of Ian Moodie)

WWAC Weeds – Angled Onion/Allium triquetrum Page 1 of 2

Habit: Winter perennial to 0.4m with strappy green leaves and white flowers. Dormant during the summer.

Description: • Long, linear green leaves (stems triangular in cross-section) • White bell flowers on drooping stalks (flowers Autumn-Spring) • Crushed leaves give off a strong onion-like smell • Reproduces by seed, bulb division and formation of small bulbils on the tips of the flower stalks

Dispersal: • Seed and transported by water down hills, creeks and drainage lines • Movement of contaminated soil • Ants spread seeds • Originally a garden escapee

Location(s) in Wurundjeri Walk: • Found in wetter shady sites e.g. along the banks of Wurundjeri Creek and the Tributary • Also in pasture in moister sites (a ‘voracious’ invader) Indigenous look-alikes: N/A

Weed Management/Control Methods: Almost impossible to control: • Hand dig small infestations soon after emergence and before bulbils form • Mow at bulb exhaustion (in the first 2 weeks after flowers appear). Continue for a number of years! • Chemical control (spot spray) as flower stems emerge (only via ParksWide staff or authorised contractors).

This Weed Information Sheet was prepared by Wurundjeri Walk Advisory Committee, supported by a Melbourne Water Community Grant. Wurundjeri Walk Advisory Committee is appointed by Whitehorse Council, Victoria.

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