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Geyer's onion

elephant garlic, wild leek

Bulbs

2–10+; ovoid or slightly elongate;

outer coats enclosing 1 or more bulbs, reticulate;

cells rather coarse-meshed; open, fibrous.

1–3+; variable; some poorly developed; others ovoid with 1–2 large bulbs and several bulbils at base;

outer coat enclosing 1 or more bulbs, membranous.

Leaves

persistent, usually green at anthesis, usually 3–5;

blades solid; more or less straight; flat, channeled; (6)12– 30 cm × 1–3(5) mm.

withering from tips by anthesis, 6–9;

blades solid; flat, channeled, 1–5 × 2–20(30) mm.

Scapes

persistent; solitary; erect; terete or somewhat 2-angled, 10–50 cm × 1–3 mm.

persistent; solitary; erect; hollow; terete, 45–180 cm × 3–7 mm.

Umbels

persistent; erect; compact, 10–25-flowered, hemispheric to globose, not producing bulbils, or 0–5-flowered, largely replaced by ovoid, acuminate bulbils;

pedicels becoming rigid and stiffly spreading in fruit, 8–13 mm;

spathe bracts 2–3.

persistent; erect; compact; to 500-flowered; few-flowered in variants with bulbils, globose;

pedicels 15–50 mm;

spathe bracts 3–5.

Flowers

(4)6–8(10) mm;

tepals erect or spreading; ovate to lanceolate; more or less equal, pink to white;

margins often obscurely toothed;

apex obtuse to acuminate;

stamens included;

ovary when present, inconspicuously crested with 3–6 low processes;

stigma unlobed or obscurely lobed.

4–5.5 mm;

tepals erect, white, pink, or dark red;

outer tepals oblong-lanceolate;

margins entire;

apex obtuse, sometimes mucronate;

inner tepals narrowly ovate to spatulate;

margins entire;

apex obtuse;

stamens equaling perianth or exserted;

ovary crestless;

stigma scarcely thickened, unlobed.

Allium geyeri

Allium ampeloprasum

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

2 varieties.

Roadsides and other disturbed areas. Flowering Apr–Jul. 0–50 m. Est. Occasionally escaped in North America; North Africa, Asia, Europe. Exotic.

This species may be conspecific with the cultivated leek A. porrum.

Source Flora of Oregon, volume 1, page 139
Nick Otting, Richard Brainerd, Barbara Wilson
Flora of Oregon, volume 1, page 136
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. 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, A. vineale
A. acuminatum, 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, A. vineale
Subordinate taxa
A. geyeri var. geyeri, A. geyeri var. tenerum
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