Scientific Name:
Allium triquetrum L., Sp. Pl. 300 (1753)
Vernacular Name(s):
Onion weed; Three-cornered garlic; Three-cornered leek; Triquetrous leek

Bulb whitish, globose, ovate, 1 × 1–(2) cm, with offset bulbs; sheaths elongate, white, papery, to above ground level. Leaves 2–5, broadly linear, = or overtopping scape, strongly channelled. Scape 20–60 cm high, triquetrous, sheathed by leaves at base. Umbels 3–15-flowered, lax without bulbils; pedicels ± drooping, twice length of flowers; spathe-valves 2, ± deciduous. Flowers 10–15–(20) mm long, ± 15 mm diam., campanulate, white; segments oblong, acute, with green central stripe. Stamens ½ length of perianth; filaments simple without appendages. Capsule c. 7 × 7 mm, light brown. Seeds c. 5 mm long, black.

[From: Healy and Edgar (1980) Flora of New Zealand. Volume 3.]


Flowering: Oct.–Nov.

Howell, C. 2008: Consolidated list of environmental weeds in New Zealand. DOC Research & Development Series 292: 42.
Linnaeus, C. 1753: Species Plantarum. Impensis Laurentii Salvii, Stockholm.