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Geyer's onion

Lemmon's onion

Bulbs

2–10+; ovoid or slightly elongate;

outer coats enclosing 1 or more bulbs, reticulate;

cells rather coarse-meshed; open, fibrous.

1–5+; ovoid;

outer coats enclosing 1 or more bulbs, membranous; more or less prominently cellular-reticulate;

cells in more or less regular vertical rows, narrowly rectangular, transversely elongate; without fibers.

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.

usually deciduous with scape, green or withering only at tip at anthesis, 2;

blades solid; flat, falcate, 8–30 cm × 3–5 mm.

Scapes

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

usually forming abscission layer and deciduous with leaves after seeds mature; solitary; erect; solid, flattened, narrowly winged, 6–20 cm × 1–4 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 more or less loose, 10–40-flowered, hemispheric;

pedicels 7–20 mm;

spathe bracts 2–3.

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.

6–9 mm;

tepals erect; lance-ovate; more or less equal, pink to whitish;

margins entire;

apex acute to acuminate;

stamens more or less equaling tepals;

ovary obscurely crested with 6 low processes;

stigma scarcely thickened, unlobed.

2n

=14.

Allium geyeri

Allium lemmonii

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

2 varieties.

Heavy clay soils often derived from volcanic ash, typically barren, open sites. Flowering Apr–Jun. 600–2000 m. BR, BW, ECas, Owy. CA, ID, NV; east to Utah. Native.

Source Flora of Oregon, volume 1, page 139
Nick Otting, Richard Brainerd, Barbara Wilson
Flora of Oregon, volume 1, page 139
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. 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. 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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