Allium nevadense |
Allium tuberosum |
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Nevada onion |
Chinese chive, garlic chives, oriental garlic |
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Bulbs | 1–3, not clustered on stout, primary rhizome, with 0–2 stalked, basal bulbels, ovoid, 1–2 × 0.8–1.5 cm; outer coats enclosing 1 or more bulbs, brown, membranous, usually prominently cellular-reticulate, cells ± transversely elongate, intricately contorted, without fibers; inner coats white or pinkish, cells elongate, intricately contorted. |
1–3, borne on stout, ± horizontal rhizome, elongate, cylindric or conic, 0.5–1.5 × 0.7–2 cm; outer coats enclosing 1 or more bulbs, brown, reticulate, cells ± fine-meshed, open, fibrous; inner coats white, cells closely parallel, elongate. |
Leaves | persistent, 1, basally sheathing, sheath not extending much above soil surface; blade solid, terete, 10–20 cm × 1–3 mm. |
withering from tip by anthesis, 2–5, sheathing scape to ± soil level; blade solid, flat, carinate abaxially, 20–40 cm × 2–6 mm, margins entire. |
Scape | persistent, solitary, erect, ± solid, terete, 5–15 cm × 1–2.5 mm. |
persistent, solitary, erect, terete, 30–50 cm × 1–3 mm. |
Umbel | persistent, erect, compact, 5–25-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 3–7-veined, ovate to lanceolate, ± equal, apex acuminate. |
persistent, erect, loose, 20–50-flowered, hemispheric-globose, bulbils unknown; spathe bracts persistent, 1–3, 3–7-veined, lance-ovate, shorter than pedicel, apex acuminate. |
Flowers | stellate, 7–12 mm; tepals spreading, white or pinkish white with dark pink midveins, lanceolate to ovate, ± equal, becoming papery in fruit, margins entire, apex acute to acuminate; stamens included; anthers purple; pollen yellow; ovary crested; processes 6, prominent, ± triangular, margins entire to notched or shallowly toothed; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 8–16 mm. |
substellate, 4–9 mm; tepals spreading, white with green or brownish midveins, lanceolate to elliptic, ± equal, withering and exposing capsule, margins entire, apex obtuse or acute; stamens included; anthers purple; pollen white; ovary crestless; style linear, ± equaling stamens; stigma capitate, unlobed; pedicel 10–30 mm. |
Seed | coat dull; cells minutely roughened. |
coat shining; cells smooth, irregularly shaped, with ± sinuous walls. |
2n | = 14, 28. |
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Allium nevadense |
Allium tuberosum |
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Phenology | Flowering Apr–Jun. | Flowering Jul–Aug. |
Habitat | Sandy, rocky, or occasionally clay soils on desert plains and hillsides | Roadsides and other disturbed ground |
Elevation | 1400–1700 m (4600–5600 ft) | |
Distribution |
AZ; CA; CO; ID; NV; OR; UT
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IA; NE; WI; se Asia [Introduced in North America]
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Discussion | Allium tuberosum is cultivated in China, Siberia, and North America, and is reported to be established in New England. It may escape anywhere the species is cultivated. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 26, p. 248. | FNA vol. 26, p. 240. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. nevadense var. macropetalum | |
Name authority | S. Watson: Botany (Fortieth Parallel), 351, plate 38, figs. 1–3. (1871) | Rottler ex Sprengel: Syst. Veg. 2: 38. (1825) |
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