Allium nevii |
Allium fistulosum |
|
---|---|---|
Nevius' garlic, Nevius' onion |
Japanese bunching onion, Welsh onion |
|
Bulbs | 1–5+, not clustered on stout, primary rhizome, ovoid, 1–2 × 1–2 cm; outer coats enclosing 1 or more bulbs, light brown, membranous, ± reticulate, cells quadrate to polygonal, vertically oblong, without fibers; inner coats white or pink, cells obscure, quadrate. |
2–12+, borne on short rhizome, cylindric, 2–5 × 1–2.5 cm; outer coats enclosing 1 or more bulbs, white to light brown, membranous, without reticulation; inner coats white, cells obscure, quadrate. |
Leaves | usually persistent, withering from tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat or ± channeled, falcate, 12–25 cm × 2–3 mm, margins entire. |
persistent, 2–6, sheathing lower 1/4–1/3 of scape; blade terete, fistulose, 10–40 cm × 10–25 mm. |
Scape | persistent, 1–3, erect, solid, terete or somewhat flattened, 2-edged, not expanded proximal to inflorescence, 15–30 cm × 1–3 mm. |
persistent, solitary, erect, fistulose, inflated in middle, tapering to umbel, (12–)15–70 cm × 8–25 mm. |
Umbel | persistent, erect, compact, 10–30-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 5–6-veined, ovate, ± equal, apex acute. |
persistent, erect, compact, 50–100-flowered, globose to ovoid, bulbils unknown; spathe bracts persistent, 1–2, 1–3-veined, ovate, ± equal, apex acute. |
Flowers | campanulate to substellate, 6–8 mm; tepals spreading, rose-colored, lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate; stamens ± equaling tepals, or exserted; anthers blue-gray; pollen light blue or gray; ovary distinctly crested; processes 6, 2 per lobe, low, rounded, margins entire; style exserted, linear; stigma capitate, unlobed; pedicel 8–12 mm. |
narrowly campanulate to urceolate, 6–9 mm; tepals erect, yellowish white, withering in fruit, margins entire, apex acute, outer lanceolate, inner narrowly ovate, unequal; stamens long-exserted; anthers white to yellow; pollen white; ovary crestless; style linear, equaling stamens; stigma capitate, obscurely 3-lobed; pedicel 10–30 mm. |
Seed | coat dull; cells smooth. |
coat shining; cells 4–6-angled, ± rectangular. |
2n | = 14. |
|
Allium nevii |
Allium fistulosum |
|
Phenology | Flowering May–Jul. | Flowering Jul–Aug. |
Habitat | Heavy, rocky soils, wet meadows, or along streams | Disturbed areas |
Elevation | 30–1900 m (100–6200 ft) | |
Distribution |
OR; WA
|
AK; NT; cultivated in Europe; Asia [Introduced in North America] |
Discussion | Allium fistulosum is cultivated in Europe and Asia. It is reported to have escaped in Alaska and is established near the north end of Great Slave Lake. The species is to be expected elsewhere in Canada and the northern United States. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 267. | FNA vol. 26, p. 244. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. douglasii var. nevii | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) | Linnaeus: Sp. Pl. 1: 301. (1753) |
Web links |