Allium tricoccum |
Allium sharsmithiae |
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ramp, small white leek, wild leek |
Sharsmith's 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. |
usually solitary, not clustered on stout, primary rhizome, ovoid to globose, 1–1.8 × 1–1.5 cm; outer coats enclosing bulb, reddish brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats pale brown, 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, 15–25 cm × 1–4 mm. |
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Scape | persistent, solitary, flexuous distally, terete, 10–40 cm × 2–4 mm. |
persistent, solitary, erect, solid, terete, 4–17 cm × 1–2.5 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, 5–50-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 3–8-veined, lanceolate to lance-ovate, ± equal, apex long-acuminate to setaceous. |
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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. |
urceolate, 10–18 mm; tepals erect, deep reddish purple, linear-lanceolate to lance-ovate, ± equal, becoming rigid in fruit, margins entire, apex acute to obtuse, recurved-spreading at tips; stamens included; anthers yellow; pollen yellow; ovary crested; processes 6, prominent, ± triangular, margins entire, surfaces usually papillate; style linear, equaling stamens; stigma capitate, 3-lobed, lobes slender, recurved; pedicel 6–19 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 sharsmithiae |
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Phenology | Flowering Apr–May. | |||||
Habitat | Serpentine clay soil on talus slopes | |||||
Elevation | 500–1100 m (1600–3600 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.) |
Of conservation concern. Allium sharsmithiae is known only from the Mount Hamilton Range. (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. 252. | ||||
Parent taxa | Liliaceae > Allium | Liliaceae > Allium | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | A. fimbriatum var. sharsmithiae | |||||
Name authority | Solander: in W. Aiton, Hort. Kew 1: 428. (1789) | (Ownbey & Aase ex Traub) McNeal: Aliso 13: 417. (1992) | ||||
Web links |