Allium tricoccum |
Allium platycaule |
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ramp, small white leek, wild leek |
broad-stem onion, flat-stem onion |
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Bulbs | 2–6, usually borne on short rhizome, ovoid-conic, 1.5–6 × 1.5–3 cm; outer coats enclosing 1 or more bulbs, brownish to grayish, reticulate, cells finely fibrous; inner coat white, obscurely cellular, cells irregularly arranged. |
1–5+, not clustered on stout primary rhizomes, renewal bulbs formed within coats of parent bulb, ovoid, 2–3 × 1.4–2.5 cm, increase bulbs ± equaling parent bulbs, rhizomes absent; outer coats enclosing 1 or more bulbs, gray or brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white, cells obscure, quadrate to rectangular, or not visible. |
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Leaves | ephemeral, usually absent at anthesis, 2–3, basal; blade solid, flat, elliptic to elliptic-lanceolate, (15–)20–30(–40) cm × 15–90 mm, tapering to long, slender petiole, margins entire. |
usually deciduous with scape, withering from tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, falcate, 10–30-cm × 8–18 mm, margins entire. |
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Scape | persistent, solitary, flexuous distally, terete, 10–40 cm × 2–4 mm. |
usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, strongly flattened, winged distally, 7–25 cm × 2–7 mm. |
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Umbel | persistent, erect, loose, (6–)30–50-flowered, obconic to ± hemispheric, bulbils unknown; spathe bracts persistent, 2, ± 3-veined, lanceolate to lance-ovate, ± equal, apex acute, beakless. |
persistent, erect, loose, 30–90-flowered, globose, bulbils unknown; spathe bracts persistent, 2–5, 10–15-veined, lanceolate to broadly ovate, ± equal, apex acuminate. |
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Flowers | campanulate, 4–7 mm; tepals erect, white to cream or yellowish, oblong to ovate, ± equal, not withering in fruit, margins entire, apex obtuse; stamens ± equaling tepals; anthers white to light yellow; pollen white; ovary crestless; style included, linear, shorter than stamens; stigma capitate, scarcely thickened, unlobed; pedicel 10–20 mm. |
stellate, 8–15 mm; tepals spreading, bright pink to rose, narrowly lanceolate, ± equal, becoming erect, rigid, constricted distal to ovary in fruit, margins entire, apex long-acuminate; stamens exserted; anthers yellow; pollen gray; ovary crestless; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed, apex acute; pedicel 10–25 mm. |
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Seed | coat shining; cells smooth. |
coat dull or shining; cells smooth. |
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2n | = 14. |
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Allium tricoccum |
Allium platycaule |
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Phenology | Flowering May–Jun. | |||||
Habitat | Rocky, sandy slopes | |||||
Elevation | 1500–2500 m (4900–8200 ft) | |||||
Distribution |
e North America
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CA; NV; OR
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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. 234. | FNA vol. 26, p. 274. | ||||
Parent taxa | Liliaceae > Allium | Liliaceae > Allium | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Solander: in W. Aiton, Hort. Kew 1: 428. (1789) | S. Watson: Proc. Amer. Acad. Arts 14: 234. (1879) | ||||
Web links |