Allium madidum |
Allium textile |
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mountain swamp onion, swamp onion |
prairie onion, textile onion, white wild onion |
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Bulbs | 1–3, larger bulbs each usually with cluster of 10–30 easily detached bulbels to one side of base, not clustered on stout, primary rhizome, globose to ovoid, 1–1.6 × 0.8–1.5 cm; outer coats enclosing 1 or more bulbs, brownish, membranous, without fibers; inner coats white to pink; inner and outer coats frequently without obvious reticulations, these, when present, contorted. |
1–3+, not rhizomatous, without basal bulbels, ovoid, 1.2–2.5 × 1–2 cm; outer coats enclosing 1 or more bulbs, gray or brown, reticulate, cells fine-meshed, open, fibrous; inner coats whitish, cells vertically elongate and regular or obscure. |
Leaves | persistent, green at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat or channeled, 10–25 cm × 1–4 mm, margins entire. |
persistent, green at anthesis, 2, sheathing; blade solid, ± straight, channeled, semiterete, 10–40 cm × 1–3(–5) mm, margins entire or denticulate. |
Scape | persistent, solitary, erect, solid, ± terete, sometimes ridged, 10–20 cm × 1–2 mm. |
persistent, solitary, erect, ± terete, 5–30(–40) cm × 1–3 mm. |
Umbel | persistent, erect, compact, 10–20-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 5–7-veined, ovate, ± equal, apex acuminate. |
persistent, erect, compact to ± loose, 15–30-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 3, usually 1-veined, ovate, ± equal, apex acuminate. |
Flowers | campanulate, 6–10 mm; tepals erect or ± spreading, white with prominent green or pink midveins, lanceolate, ± equal, becoming papery in fruit, margins entire, apex obtuse to acuminate, becoming involute at tip; stamens included; anthers white or yellow; pollen yellow; ovary crestless or obscurely crested; processes 3, low, central, rounded, minute; style linear, equaling stamens; stigma capitate, unlobed or slightly lobed; pedicel 5–12 mm. |
urceolate to campanulate, 5–7 mm; tepals erect, white or rarely pink, with red or reddish brown midribs; outer whorl broadly ovate to lanceolate, unequal, becoming callous-keeled and permanently investing capsule, margins often obscurely toothed apically, apex obtuse to acuminate; inner whorl narrower, margins entire, apex distinctly spreading; stamens included; anthers yellow; pollen yellow; ovary ± conspicuously crested; processes 6, central, distinct or connate in pairs across septa, ± erect, rounded, to 1 mm, margins entire, becoming variously developed or obsolete in fruit; style linear, equaling filaments; stigma capitate, unlobed or obscurely lobed; pedicel 5–20 mm. |
Seed | coat dull; cells ± smooth. |
coat shining; cells ± smooth, without central papillae. |
2n | = 28, 42. |
= 14, 28. |
Allium madidum |
Allium textile |
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Phenology | Flowering May–Jul. | Flowering May–Jun. |
Habitat | Seasonally wet meadows | Dry plains and hills |
Elevation | 1100–2000 m (3600–6600 ft) | 300–2400 m (1000–7900 ft) |
Distribution |
ID; OR
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CO; IA; ID; KS; MN; MT; ND; NE; NM; NV; SD; UT; WA; WY; AB; MB; SK
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Discussion | Allium madidum is found in the Blue Mountains, Oregon and in Idaho near Payette Lake and New Meadows. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 26, p. 255. | FNA vol. 26, p. 243. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. aridum, A. reticulatum, A. reticulatum var. playanum | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 14: 228. (1879) | A. Nelson & J. F. Macbride: Bot. Gaz. 56: 470. (1913) |
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