Allium perdulce |
Allium plummerae |
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plains onion |
tanners canyon onion |
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Bulbs | 2–20+, without basal bulbels, 1–2.5 × 1.2–2.8 cm; outer coats enclosing 1 or more bulbs, dark brown, reticulate, cells coarse-meshed, open, fibrous; inner coats whitish, cells regular, vertically elongate, walls not sinuous. |
usually 1 of a cluster, sometimes short-rhizomatous basally, elongate, to 5 × 1–1.5 cm; outer coats enclosing 1 or more bulbs, gray or brown, reticulate, cells very coarse-meshed, open, fibrous; inner coats whitish, cells vertically elongate and regular or obscure. |
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Leaves | persistent, green at anthesis, 3–5, sheathing; blade solid, flat, channeled, 8–30 cm × 1–2(–3) mm, margins entire. |
persistent, green at anthesis, 3–6, sheathing; blade solid, flat, broadly channeled, 25–50 cm × 3–7 mm, margins entire or minutely denticulate. |
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Scape | persistent, solitary, erect, ± terete, 10–20 cm × 1–3 mm. |
persistent, solitary, erect, terete or ± 4-angled, 30–50 cm × 1–3.5 mm. |
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Umbel | persistent, erect, loose, 5–25-flowered, hemispheric-globose, bulbils unknown; spathe bracts persistent, 2–3, 3–7-veined, ovate, ± equal, apex acuminate. |
persistent, erect, loose, 10–25-flowered, hemispheric-globose, bulbils unknown; spathe bracts persistent, 2–3, 3–5-veined, lanceolate, ± equal, apex long-acuminate. |
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Flowers | urceolate, 7–10 mm; tepals erect, white or pale pink with deep pink midribs to deep rose, lanceolate, ± equal, becoming callous-keeled and permanently investing capsule, margins entire, apex obtuse or acute; stamens included; anthers yellow or purple; pollen yellow; ovary crestless; style linear, ± equaling stamens; stigma capitate, unlobed or obscurely lobed; pedicel 3–17 mm, ± 2 times perianth at anthesis, elongating in fruit. |
± stellate, 5–10 mm; tepals spreading or reflexed, white or pink, lanceolate, ± equal, withering in fruit and exposing capsules, margins entire, apex acute, midrib becoming noticeably thickened; stamens ± equaling tepals to exserted; anthers purple; pollen light yellow; ovary conspicuously crested; processes 6, central, usually connate in pairs across septa, ± erect, flattened, to 2 mm, margins lacerate, usually well developed in fruit; style linear, equaling stamens; stigma capitate, unlobed or obscurely lobed; pedicel 15–25 mm, elongating in fruit. |
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Seed | coat dull or shining; cells minutely roughened. |
coat shining; cells each with minute, central papilla. |
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2n | = 28. |
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Allium perdulce |
Allium plummerae |
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Phenology | Flowering Jun–Sep. | |||||
Habitat | Rocky slopes, stream banks, and marshy ground, mountains | |||||
Elevation | 1600–2800 m (5200–9200 ft) | |||||
Distribution |
c North America
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AZ; Mexico |
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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. 241. | FNA vol. 26, p. 242. | ||||
Parent taxa | ||||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | S. V. Fraser: Trans. Kansas Acad. Sci. 42: 124. (1940) | S. Watson: Proc. Amer. Acad. Arts 18: 195. (1883) | ||||
Web links |