The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

three-corner leek

cow garlic, field garlic, wild garlic

Bulbs

5–20+; increase bulbs absent or more or less equaling parent bulbs, never appearing as basal cluster; ovoid;

outer coats enclosing renewal bulbs; more or less translucent, obscurely cellular-reticulate; thin, membranous; meshes delicate;

cells vertically elongate, contorted; without fibers.

5–20, clustered, stipitate; hard-shelled, asymmetric; ovoid;

outer coats enclosing bulbs, membranous, vertically striate, splitting into parallel strips and fibers, cellular reticulations vertical, arranged in more or less wavy rows.

Leaves

persistent, green at anthesis, 2–3;

blades solid; flat, not falcate; more or less keeled, 15–50 cm × 3–15 mm;

margins entire.

persistent, green at anthesis, 2–4;

blades hollow below middle; terete, cylindric or filiform, not carinate, 20–60 cm × 2–4 mm.

Scapes

persistent, clustered; erect; solid, sharply 3-angled, 10–40 cm × 1–10 mm.

persistent; solitary; erect; terete, 30–120 cm × 1.5–4 mm.

Umbels

persistent; lax; loose, 3–15-flowered; more or less 1-sided;

pedicels 15–25 mm;

spathe bracts 1–2.

persistent; erect; more or less compact, 0–50-flowered, subglobose to ovoid or hemispheric, flowering pedicels all or in part replaced by bulbils; bulbils sessile, basally narrowed, 4–6 × 2–3 mm;

pedicels 10–20 mm at flowering;

spathe bract 1.

Flowers

becoming pendent, 10–18 mm;

tepals erect to spreading, lanceolate; more or less equal, white with prominent green midrib;

margins entire;

apex acute;

stamens included;

ovary crestless;

stigma scarcely thickened, unlobed.

3–4 mm;

tepals erect, elliptic-lanceolate; more or less equal; greenish to purple;

margins entire;

apex obtuse;

stamens exserted;

ovary crestless;

stigma scarcely thickened, unlobed.

2n

=18.

=32, 40.

Allium triquetrum

Allium vineale

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Road ditches, lawns, and other disturbed moist sites. Flowering Apr–Jul. 400–2800 m. BR, BW, Col, ECas, Lava, Owy. CA; Europe. Exotic.

Allium triquetrum is cultivated for its attractive flowers. It readily escapes in south coastal Oregon and California and has potential to become invasive.

Disturbed areas near agricultural fields, flower beds, lawns. Flowering Jun–Aug. 0–300 m. CR, Est, Sisk, WV. CA, ID, WA; north to British Columbia, northeast to MT, disjunct MI to MA, GA to LA; worldwide. Exotic.

Allium vineale is a noxious weed and difficult to control with commonly used herbicides.

Source Flora of Oregon, volume 1, page 144
Nick Otting, Richard Brainerd, Barbara Wilson
Flora of Oregon, volume 1, page 144
Nick Otting, Richard Brainerd, Barbara Wilson
Sibling taxa
A. acuminatum, A. ampeloprasum, A. amplectens, A. anceps, A. bisceptrum, A. bolanderi, A. brandegeei, A. campanulatum, A. cernuum, A. crenulatum, A. dictuon, A. douglasii, A. falcifolium, A. fibrillum, A. geyeri, A. lemmonii, A. macrum, A. madidum, A. membranaceum, A. nevadense, A. nevii, A. nigrum, A. parvum, A. peninsulare, A. platycaule, A. punctum, A. robinsonii, A. sanbornii, A. schoenoprasum, A. siskiyouense, A. tolmiei, A. unifolium, A. validum, A. vineale
A. acuminatum, A. ampeloprasum, A. amplectens, A. anceps, A. bisceptrum, A. bolanderi, A. brandegeei, A. campanulatum, A. cernuum, A. crenulatum, A. dictuon, A. douglasii, A. falcifolium, A. fibrillum, A. geyeri, A. lemmonii, A. macrum, A. madidum, A. membranaceum, A. nevadense, A. nevii, A. nigrum, A. parvum, A. peninsulare, A. platycaule, A. punctum, A. robinsonii, A. sanbornii, A. schoenoprasum, A. siskiyouense, A. tolmiei, A. triquetrum, A. unifolium, A. validum
Web links