Allium sanbornii |
Allium runyonii |
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Sanborn's onion |
Runyon's onion |
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Bulbs | 1–3, not clustered on stout, primary rhizome, ovoid, 1–2.5(–3) × 1.2–2 cm; outer coats enclosing 1 or more bulbs, dark reddish brown, chartaceous, lacking cellular reticulation or cells arranged in 2–3 rows distal to roots, ± quadrate, without fibers; inner coats light brown or white, cells obscurely quadrate. |
1–3, bearing cluster of short-stalked, basal bulbels, ovoid, 1.2–2 × 1.2–2 cm; outer coats enclosing 1 or more bulbs, brownish, reticulate, cells very coarse-meshed, open, fibrous; inner coats whitish, cells contorted, walls very sinuous. |
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Leaves | persistent, withering from tip by anthesis, 1, basally sheathing, sheath never extending much above soil level; blade solid, terete, 30–45 cm × 2–4 mm. |
green at anthesis, persistent, 3–6, basally sheathing; blade solid, flat, channeled, 10–40 cm × 1–4 mm, margins entire. |
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Scape | persistent, solitary, erect, ± solid, terete, 18–60 cm × 2–3 mm. |
persistent, often 2 or more successively produced from single bulb, erect, ± terete, 10–45 cm × 1–4 mm. |
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Umbel | persistent, erect, compact, 18–190-flowered, hemispheric to globose, bulbils unknown; spathe bracts persistent, 4, 3-veined, ovate, ± equal, apex long-acuminate. |
persistent, erect, loose, usually 10–25-flowered, hemispheric-globose, bulbils unknown; spathe bracts persistent, usually 3, 3–7-veined, ovate, ± equal, apex acuminate. |
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Flowers | campanulate, 5–9 mm; tepals erect, white to pink with darker midveins, unequal, becoming papery in fruit, margins entire or irregular to erose, apex acute or acuminate to long-acuminate; outer tepals lanceolate to ovate, reflexed at tip; inner 1/4–1/3 longer than outer, ovate to broadly ovate; stamens exserted; anthers yellow or purple; pollen yellow or white; ovary crested; processes 6, prominent, erect, ± triangular, margins entire; style linear, equaling stamens; stigma capitate, obscurely to distinctly 3-lobed, lobes erect or spreading, ± stout; pedicel 8–22 mm. |
urceolate, 5–7 mm; tepals erect, white with pinkish midribs, aging to pink, lanceolate, ± equal, becoming callous-keeled and permanently investing capsule, margins entire, apex obtuse or even emarginate to acute; stamens ± equaling tepals; anthers yellow; pollen yellow; ovary crestless; style linear, equaling stamens; stigma capitate, unlobed or obscurelylobed, pedicel 8–28 mm, elongating in fruit. |
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Seed | coat dull; cells minutely roughened. |
coat shining;, cells smooth. |
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2n | = 14. |
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Allium sanbornii |
Allium runyonii |
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Phenology | Flowering Mar–Apr. | |||||
Habitat | Sandy soils, Rio Grande plains | |||||
Elevation | 10–200 m (0–700 ft) | |||||
Distribution |
Calif and Oreg
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Tex Allium runyonii is known only from extreme southern Texas |
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Allium runyonii is known only from extreme southern Texas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 248. | FNA vol. 26, p. 241. | ||||
Parent taxa | Liliaceae > Allium | Liliaceae > Allium | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Alph. Wood: Proc. Acad. Nat. Sci. Philadelphia 20: 171. (1868) | Ownbey: Res. Stud. State Coll. Wash. 18: 198, fig. 4. (1951) | ||||
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