Allium oleraceum |
Allium campanulatum |
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field garlic |
dusky onion, rosy Sierra onion, Sierra onion |
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Bulbs | 1 or more, not attached to rhizome, ovoid, 1.2–2 × 1–1.5 cm; outer coats enclosing bulbs, brown to grayish brown, fibrous, fibers close, ± parallel; inner coats white to light brown, not cellular. |
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. |
Leaves | withering from tip by anthesis, 2–4, sheathing proximal 1/2+ scape; blade fistulose proximally, solid distally, terete, linear to filiform, prominently ribbed proximally, channeled distally, 1.5–2.5 cm × 0.5–5 mm, margins and veins usually scabrid with minute teeth, apex acute. |
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. |
Scape | persistent, solitary, erect, terete, 25–100 cm × 4–8 mm. |
persistent, solitary or clustered, 1–3, erect, solid, terete, 10–30 cm × 1–5 mm. |
Umbel | persistent, erect, compact to ± loose, 0–40-flowered, subglobose, with few to many bulbils or with bulbils only; spathe bracts persistent, 2, 4–9-veined, lanceolate, unequal, apex acuminate into beak, beak long, slender, to 20 cm, ± equaling or longer than base. |
persistent, erect, loose, 10–50-flowered, ± globose, bulbils unknown; spathe bracts persistent, 2–3, 3–5-veined, ovate to lanceolate, ± equal, apex acuminate. |
Flowers | usually aborting before capsules mature, if present, campanulate, 6–8 mm; tepals erect, whitish or pinkish to purple, outer narrowly obovate, inner ± elliptic, unequal, margins entire, apex obtuse; stamens included; anthers yellow to reddish; pollen yellow; ovary crestless; style linear, equaling stamens; stigma capitate, unlobed; pedicel 15–60 mm. |
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. |
Seed | coat unknown; capsules only rarely produced. |
coat shining; cells each with minute, central papilla. |
2n | = 14, 28. |
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Allium oleraceum |
Allium campanulatum |
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Phenology | Flowering late Jul–Aug. | Flowering late May–Aug. |
Habitat | Roadsides and other disturbed ground | Generally sandy soils on open or shaded slopes |
Elevation | 600–2600 m (2000–8500 ft) | |
Distribution |
Europe [Introduced in North America] |
CA; NV; OR
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Discussion | Allium oleraceum is reported from New England, where it is sometimes found on roadsides and other disturbed ground. It persists and is spread easily by the bulbils. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 26, p. 238. | FNA vol. 26, p. 256. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. austinae, A. bidwelliae, A. campanulatum var. bidwelliae | |
Name authority | Linnaeus: Sp. Pl. 1: 299. (1753) | S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) |
Web links |