Allium perdulce |
Allium lacunosum |
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plains onion |
pitted onion |
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Bulbs | 2–20+, without basal bulbels, 1–2.5 × 1.2–2.8 cm; outer coats enclosing 1 or more bulbs, dark brown, reticulate, cells coarse-meshed, open, fibrous; inner coats whitish, cells regular, vertically elongate, walls not sinuous. |
1–3(–5), not clustered on stout primary rhizome, ovoid, 1–2 × 1–2 cm; outer coats enclosing 1 or more bulbs, brown, prominently cellular-reticulate, membranous, accumulating and investing bulb with thick cover, cells square, polygonal, or ± transversely elongate, walls thick, sinuous, without fibers; inner coats white to light brown, cells ± obscure, quadrate. |
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Leaves | persistent, green at anthesis, 3–5, sheathing; blade solid, flat, channeled, 8–30 cm × 1–2(–3) mm, margins entire. |
persistent, withering from tip at anthesis, 2–3, basally sheathing, sheaths not extending much above soil surface; blade solid, flattened, subterete or ± channeled and carinate, ± falcate, 10–30 cm × 0.5–3 mm, margins entire. |
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Scape | persistent, solitary, erect, ± terete, 10–20 cm × 1–3 mm. |
persistent, solitary, erect, solid, terete, 10–35 cm × 1–4 mm. |
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Umbel | persistent, erect, loose, 5–25-flowered, hemispheric-globose, bulbils unknown; spathe bracts persistent, 2–3, 3–7-veined, ovate, ± equal, apex acuminate. |
persistent, erect, compact or loose, 5–45-flowered, bulbils unknown, umbel shattering after seeds mature, each flower deciduous with its pedicel; spathe bracts persistent, 2–3, 4–6-veined, lance-ovate to ovate, ± equal, apex obtuse or acuminate. |
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Flowers | urceolate, 7–10 mm; tepals erect, white or pale pink with deep pink midribs to deep rose, lanceolate, ± equal, becoming callous-keeled and permanently investing capsule, margins entire, apex obtuse or acute; stamens included; anthers yellow or purple; pollen yellow; ovary crestless; style linear, ± equaling stamens; stigma capitate, unlobed or obscurely lobed; pedicel 3–17 mm, ± 2 times perianth at anthesis, elongating in fruit. |
campanulate, 4–9 mm; tepals erect or spreading from base, white to deep pink with darker midveins, lance-ovate to ovate, ± equal, margins entire, apex obtuse, acute, or short-acuminate; stamens included; anthers yellow; pollen yellow; ovary 3-grooved with ridge on either side of each groove, ridges prolonged into crest, ridges and crest densely covered with minute, rounded papillae; processes 3, central, 2-lobed, minute; style linear, equaling stamens; stigma capitate, scarcely thickened, obscurely 3-lobed; pedicel 4–30 mm. |
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Seed | coat dull or shining; cells minutely roughened. |
coat dull or shining; cells minutely roughened. |
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Allium perdulce |
Allium lacunosum |
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Distribution |
c North America
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CA
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 4 (4 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 241. | FNA vol. 26, p. 260. | ||||||||||||||||
Parent taxa | ||||||||||||||||||
Sibling taxa | ||||||||||||||||||
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Name authority | S. V. Fraser: Trans. Kansas Acad. Sci. 42: 124. (1940) | S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) | ||||||||||||||||
Web links |