Allium geyeri |
Allium madidum |
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Geyer's onion |
swamp onion |
|
Bulbs | 2–10+; ovoid or slightly elongate; outer coats enclosing 1 or more bulbs, reticulate; cells rather coarse-meshed; open, fibrous. |
1–3; larger bulbs each usually with cluster of 10–30 easily detached bulbils to one side of base, globose to ovoid; outer coats enclosing 1 or more bulbs, membranous; 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. |
persistent, green at anthesis, 2; blades solid; flat or channeled, 10–25 cm × 1–4 mm. |
Scapes | persistent; solitary; erect; terete or somewhat 2-angled, 10–50 cm × 1–3 mm. |
persistent; solitary; erect; solid; more or less terete, sometimes ridged, 10–20 cm × 1–2 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, 10–20(40)-flowered, hemispheric; pedicels 5–12 mm; spathe bracts 2. |
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. |
6–10 mm; tepals erect or more or less spreading, white with prominent green or pink midveins, lanceolate; more or less equal; margins entire; apex obtuse to acuminate, becoming involute at tip; stamens included; ovary crestless or obscurely crested with 3 minute processes; stigma unlobed or slightly lobed. |
2n | =28, 42. |
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Allium geyeri |
Allium madidum |
|
Distribution | ||
Discussion | 2 varieties. |
Open mixed conifer forests, gravelly seeps, seasonally wet meadows and scablands. Flowering May–Jul. 1000–2200 m. BW. ID. Native. |
Source | Flora of Oregon, volume 1, page 139 Nick Otting, Richard Brainerd, Barbara Wilson |
Flora of Oregon, volume 1, page 140 Nick Otting, Richard Brainerd, Barbara Wilson |
Sibling taxa | ||
Subordinate taxa | ||
Web links |
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