Allium parishii |
Allium obtusum |
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Parish's onion, wild onion |
red Sierra onion, red Sierran onion |
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Bulbs | 1–2, not clustered on primary rhizome, without stalked basal increase bulbs, ovoid, 1–1.5 × 0.8–1.3 cm; outer coats enclosing bulbs, brown to reddish brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats pinkish to reddish brown, cells obscure, ± rectangular, vertically elongate. |
1–5, not clustered on stout primary rhizome, ovoid, 1–2 × 0.8–1.8 cm; outer coats enclosing 1 or more bulbs, brown, membranous, cellular-reticulate, cells quadrate, polygonal, or ± rectangular, ± transversely elongate, without fibers; inner coats white, reticulation absent or cells obscure, ± quadrate. |
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Leaves | persistent, withering from tip by anthesis, 1, basally sheathing, sheath not extending much above soil level; blade solid, terete, 5–30 cm × 1–3 mm. |
usually deciduous with scape, withering from tip at anthesis, 1–2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat or broadly channeled, ± falcate, 5–22 cm × 0.5–14 mm, margins entire. |
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Scape | persistent, solitary, erect, solid, terete, 5–25 cm × 1–3 mm. |
usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, terete, 2–17 cm × 0.5–2 mm. |
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Umbel | persistent, erect, compact, 6–15-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 5–7-veined, ovate, ± equal, apex acuminate. |
persistent, erect, compact, 6–65-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3(–5), 5-8-veined, ovate, ± equal, apex abruptly acuminate to apiculate. |
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Flowers | narrowly campanulate, 12–18 mm; tepals erect, spreading at tips, pale pink with darker midveins, lanceolate to lance-linear, ± equal, inner slightly shorter and narrower than outer, margins entire, apex acute, becoming rigid in fruit; stamens included; anthers yellow; pollen yellow; ovary crested; processes 6, prominent, ± triangular, margins entire to irregularly denticulate; style linear, equaling stamens; stigma capitate, scarcely thickened, minutely 3-lobed, lobes stout, ± spreading; pedicel 5–15 mm. |
campanulate, 4–12 mm; tepals erect, white or pink with dark purplish midveins, lanceolate to oblong-elliptic, ± equal, becoming papery in fruit, margins entire, apex obtuse to acute; stamens included; anthers yellow or purple; pollen yellow; ovary crested; processes 3, obscure to ± prominent, rounded, central, margins entire; style linear, equaling stamens or longer; stigma capitate, scarcely thickened, obscurely 3-lobed; pedicel 2–14(–20) mm. |
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Seed | coat dull or shining; cells minutely roughened. |
coat dull; cells ± smooth. |
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2n | = 14. |
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Allium parishii |
Allium obtusum |
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Phenology | Flowering Apr–May. | |||||
Habitat | Rocky, sandy desert slopes | |||||
Elevation | 900–1400 m (3000–4600 ft) | |||||
Distribution |
AZ; CA
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CA; NV
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Discussion | Varieties 2 (2 in the flora). Allium obtusum is known only from the 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. 249. | FNA vol. 26, p. 269. | ||||
Parent taxa | Liliaceae > Allium | Liliaceae > Allium | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | S. Watson: Proc. Amer. Acad. Arts 17: 380. (1882) | Lemmon: Pittonia 2: 69. (1890) | ||||
Web links |