Allium triquetrum |
Allium vineale |
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three-corner leek |
cow garlic, field garlic, wild garlic |
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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 |
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Distribution | ||
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 | ||
Web links |
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