Allium tricoccum |
Allium abramsii |
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ramp, small white leek, wild leek |
Abrams' allium, Abrams' 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. |
1–3, not clustered on stout, primary rhizome, ovoid to globose, 1–1.5 × 1–1.5 cm; outer coats enclosing 1 or more bulbs, gray to dark 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. |
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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. |
persistent, withering from tip by anthesis, 1, basally sheathing, sheath not extending much above soil surface; blade solid, terete, 12–30 cm × 1–3.5 mm. |
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Scape | persistent, solitary, flexuous distally, terete, 10–40 cm × 2–4 mm. |
persistent, solitary, erect, solid, terete, 6–15 cm × 1–3 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, compact, 10–45-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 3–5-veined, lanceolate, ± 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. |
campanulate to urceolate, 8–15 mm; tepals erect, rose-purple, linear to lanceolate, unequal, becoming rigid and ± keeled in fruit, apex acute, ± spreading-reflexed at tip, inner tepals slightly shorter and wider than outer, outer margins denticulate on distal 1/4, inner margins denticulate to erose and crisped throughout; stamens included; anthers yellow; pollen yellow; ovary crested; processes 6, prominent, ± triangular, margins entire; style linear, equaling stamens; stigma capitate, 3-lobed, lobes slender, recurved; pedicel 4–12 mm. |
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Seed | coat shining; cells smooth. |
coat dull or shining; cells minutely roughened. |
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2n | = 14. |
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Allium tricoccum |
Allium abramsii |
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Phenology | Flowering May–Jul. | |||||
Habitat | Granite sands in open coniferous forest | |||||
Elevation | 1400–2000 m (4600–6600 ft) | |||||
Distribution |
e 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.) |
Allium abramsii is known only from the central Sierra Nevada. (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. | ||||
Parent taxa | Liliaceae > Allium | Liliaceae > Allium | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | A. fimbriatum var. abramsii | |||||
Name authority | Solander: in W. Aiton, Hort. Kew 1: 428. (1789) | (Ownbey & Aase ex Traub) McNeal: Aliso 13: 417. (1992) | ||||
Web links |