Allium cernuum |
Allium victorialis |
|
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lady's leek, nodding onion |
victory onion |
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Bulbs | 2–5+, clustered, often short-rhizomatous at base, rhizome not stout or iris-like, oblong, elongate, 1–3 × 0.8–1.5 cm; outer coats enclosing 1 or more bulbs, grayish or brownish, membranous, minutely striate, cells in regular vertical rows, narrowly elongate, fibers persistent, parallel, few; inner coats white to pink or reddish, cells in regular vertical rows, narrowly elongate. |
1–several, attached to ± oblique rhizome, cylindric-conic, 5–6 × 1–2 cm; outer coats enclosing 1 or more bulbs, light brown to grayish brown, reticulate, cells fine-meshed, open, ± fibrous; inner coat white to light brown, not appearing cellular, 10–18-veined, veins prominent, parallel. |
Leaves | persistent, green at anthesis, 3–5, basally sheathing, sheaths not extending much above soil level; blade solid, flat, channeled to broadly V-shaped in cross section, 10–25 cm × 1–6 mm, margins entire or denticulate. |
persistent, green at anthesis, 2–3, sheathing proximal 1/3–1/2 scape; blade solid, flat, narrowly lanceolate to broadly elliptic, 10–20 cm × 15–90 mm, base evidently petiolate, margins entire; petiole 1–20 cm. |
Scape | persistent, sometimes 2 or more produced successively from single bulb, usually clustered, nodding, solid, terete or ridged, particularly distally, sometimes flattened and narrowly winged, abruptly recurved near apex, 10–50 cm × 1–3 mm. |
persistent, solitary, erect, terete distally, 2-edged proximally, 30–70 cm × 2–3 mm. |
Umbel | persistent, cernuous, loose, 8–35-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 3-veined, lanceolate, ± equal, apex acuminate, beakless. |
persistent, erect, loose, 20–35-flowered, hemispheric, bulbels unknown; spathe bracts persistent, 1–2, 3–6-veined, lanceolate to ovate, ± equal, apex obtuse, nearly beakless. |
Flowers | campanulate, 4–6 mm; tepals ± erect, pink or white, elliptic-ovate, ± equal, withering in fruit, margins ± entire, apex ± obtuse, at least outer tepals strongly incurved, midribs not thickened; stamens exserted; anthers yellow; pollen yellow; ovary conspicuously crested; processes 6, flattened, ± triangular, margins entire or toothed; style exserted, linear, ± equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 6–25 mm, becoming stouter in fruit, elongating and bending abruptly upward from near point of attachment. |
stellate, 4–5 mm; tepals spreading, white or greenish white, outer lanceolate, inner narrowly ovate, ± equal, reflexed in age, withering in fruit, margins entire, apex acute or obtuse; stamens exserted; anthers yellow; pollen yellow; ovary crestless; style exserted, linear, equaling stamens or longer; stigma capitate, scarcely thickened; pedicel 10–30 mm. |
Seed | coat dull or shining; cells smooth, minutely roughened, or each with minute, central papilla. |
coat not known. |
2n | = 14. |
|
Allium cernuum |
Allium victorialis |
|
Phenology | Flowering Jul–Oct. | Flowering Jul–Aug. |
Habitat | Widely distributed on moist soils in mountainous and cool regions | Rocky areas |
Elevation | 600–3500 m (2000–11500 ft) | 0–30 m (0–100 ft) |
Distribution |
AL; AR; AZ; CO; DC; GA; IA; ID; IL; IN; KY; MD; MI; MN; MO; MT; NC; NE; NM; NY; OH; OR; PA; SC; SD; TN; TX; UT; VA; WA; WI; WV; WY; AB; BC; ON; SK; Mexico
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AK; e Asia |
Discussion | Allium cernuum is the most widespread North American species of the genus. It is closely related to A. stellatum, and the character commonly used to differentiate them has been umbel orientation. In both species, the inflorescence is nodding in bud, but in A. stellatum it usually becomes erect by anthesis. In A. cernuum the peduncle remains permanently recurved near the apex, although the inflorescence may sometimes become erect overall, or nearly so. While this character is helpful in identification, an almost exclusive reliance on it (even by one of the present authors in his youth) has obscured other clearer distinctions between the species and has confused their geographic ranges. More reliable characters for differentiating these species are bulb shape (elongate in A. cernuum, ovoid in A. stellatum) and perianth shape (campanulate in A. cernuum, stellate in A. stellatum). Unfortunately, perianth shape is often difficult to see in herbarium specimens. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Allium victorialis is found in North America only on Attu Island, where it is reported to be native, and on Unalaska Island, where it is reported to be introduced from Attu Island. Within this species, various subspecies and varieties have been described, but, as circumscribed, they are not clearly distinct. The North American plants have been known as subsp. platyphyllum, but until the variation within this widespread species can be worked out along natural lines, recognition of infraspecific taxa seems pointless. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 247. | FNA vol. 26, p. 234. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. allegheniense, A. oxyphilum, A. recurvatum | A. victorialis subsp. platyphyllum |
Name authority | Roth: Arch. Bot. (Leipzig) 1: 40. (1798) | Linnaeus: Sp. Pl. 1: 295. (1753) |
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