Allium campanulatum |
Allium tolmiei |
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dusky onion, rosy Sierra onion, Sierra onion |
Tolmie's onion |
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Bulbs | 1–3, producing cluster of stalked basal bulbels distal to roots or filiform rhizomes to 10 cm and terminated by bulbels, ovoid, 1–2 × 0.6–1.4 cm; outer coats enclosing 1 or more bulbs, brown to gray, membranous, cellular-reticulate, cells ± quadrate, walls very sinuous, without fibers; inner coats pink to white, cells obscure, vertically elongate. |
1–10+, not clustered on stout primary rhizome, not forming rhizomes, renewal bulbs formed within coats of parent bulb, or borne terminally on rhizomes outside coats of parent bulb, parent bulb disappearing by anthesis except for still-functional roots and shriveled bulb coat, ovoid or oblique, 0.6–2 × 1–2.5 cm; outer coats enclosing 1 or more bulbs, brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white to pink, cells obscure, quadrate, or not visible. |
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Leaves | persistent, withering from tip by anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, distinctly concave-convex, 8–40 cm × 1–5 mm, margins entire. |
forming abcission layer at soil surface and deciduous or persistent with scape after seeds mature, also frequently breaking at soil surface after pressing, withering at tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, ± falcate, 10–40 cm × 1–10 mm, margins entire. |
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Scape | persistent, solitary or clustered, 1–3, erect, solid, terete, 10–30 cm × 1–5 mm. |
deciduous or persistent, solitary, erect, solid, compressed to strongly flattened and winged or not, 5–40 cm × 1–5 mm. |
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Umbel | persistent, erect, loose, 10–50-flowered, ± globose, bulbils unknown; spathe bracts persistent, 2–3, 3–5-veined, ovate to lanceolate, ± equal, apex acuminate. |
persistent, erect, compact to ± loose, 10–50-flowered, globose to hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 8–17-veined, ovate to lanceolate, ± equal, apex acuminate. |
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Flowers | stellate, 5–8 mm; tepals spreading, rose to purple (rarely white) with darker purple crescent adaxially basally, lanceolate to ovate, ± equal, carinate in fruit, becoming erect, ± shiny, rigid, margins entire, apex acuminate, strongly involute at tip; stamens included; anthers purple; pollen yellow; ovary crested; processes 6, prominent, low, central, triangular, margins minutely denticulate; style linear, ± equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 10–20 mm, becoming flexuous and mostly strongly deflexed in fruit. |
campanulate to ± stellate, 6–12 mm; tepals ± erect, almost white to pink, with prominent, darker midribs, lanceolate, ± equal, becoming rigid, spreading, carinate in fruit, margins entire, apex acute to acuminate, involute at tip; stamens included to ± equaling tepals or exserted; anthers purple to yellow; pollen yellow; ovary crestless or obscurely to prominently crested; processes 3 or 6, central, low, rounded to ± prominent, triangular, margins entire; style linear, ± equaling stamens; stigma capitate, unlobed or obscurely lobed; pedicel 5–25 mm. |
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Seed | coat shining; cells each with minute, central papilla. |
coat dull; cells smooth. |
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2n | = 14, 28. |
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Allium campanulatum |
Allium tolmiei |
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Phenology | Flowering late May–Aug. | |||||
Habitat | Generally sandy soils on open or shaded slopes | |||||
Elevation | 600–2600 m (2000–8500 ft) | |||||
Distribution |
CA; NV; OR
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w United States
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Discussion | Varieties 2 (2 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. 256. | FNA vol. 26, p. 272. | ||||
Parent taxa | Liliaceae > Allium | Liliaceae > Allium | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | A. austinae, A. bidwelliae, A. campanulatum var. bidwelliae | |||||
Name authority | S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) | Baker: Bot. Mag. 32: under plate 6227. (1876) | ||||
Web links |