Allium campanulatum |
Allium elmendorfii |
|
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dusky onion, rosy Sierra onion, Sierra onion |
elmendorf's onion |
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Bulbs | 1–3, producing cluster of stalked basal bulbels distal to roots or filiform rhizomes to 10 cm and terminated by bulbels, ovoid, 1–2 × 0.6–1.4 cm; outer coats enclosing 1 or more bulbs, brown to gray, membranous, cellular-reticulate, cells ± quadrate, walls very sinuous, without fibers; inner coats pink to white, cells obscure, vertically elongate. |
1–3, larger bulbs each bearing 3–10 basal bulbels surrounding roots, not clustered on stout, primary rhizome, ovoid, 1–1.5 × 0.8–1.5 cm; outer coats enclosing 1 or more bulbs, thin, membranous, lacking reticulation, without persistent fibers; inner coats whitish, cells vertically elongate or contorted, walls very sinuous. |
Leaves | persistent, withering from tip by anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, distinctly concave-convex, 8–40 cm × 1–5 mm, margins entire. |
persistent, green at anthesis, 3–6, basally sheathing, sheaths not extending much above soil surface; blades solid, flat, channeled, 15–40 cm × 1–3 mm, margins entire. |
Scape | persistent, solitary or clustered, 1–3, erect, solid, terete, 10–30 cm × 1–5 mm. |
persistent, 1–3, clustered, erect, solid, terete, 15–40 cm × 1–4 mm. |
Umbel | persistent, erect, loose, 10–50-flowered, ± globose, bulbils unknown; spathe bracts persistent, 2–3, 3–5-veined, ovate to lanceolate, ± equal, apex acuminate. |
persistent, erect, loose, 10–30-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 3–4, 4–5-veined, ovate, ± equal, apex acuminate. |
Flowers | stellate, 5–8 mm; tepals spreading, rose to purple (rarely white) with darker purple crescent adaxially basally, lanceolate to ovate, ± equal, carinate in fruit, becoming erect, ± shiny, rigid, margins entire, apex acuminate, strongly involute at tip; stamens included; anthers purple; pollen yellow; ovary crested; processes 6, prominent, low, central, triangular, margins minutely denticulate; style linear, ± equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 10–20 mm, becoming flexuous and mostly strongly deflexed in fruit. |
± stellate to campanulate, 5–6 mm; tepals erect or ± spreading, ± flexuous, white or pinkish, lanceolate, ± equal, papery and withering away from fruit, margins entire or nearly so, apex obtuse, midribs thickened; stamens included; anthers yellow; pollen yellow; ovary crestless; style linear, equaling stamens; stigma capitate, unlobed to distinctly lobed; pedicel 1–2.5 mm, elongating in fruit. |
Seed | coat shining; cells each with minute, central papilla. |
coat shining; cells smooth. |
2n | = 14, 28. |
= 14. |
Allium campanulatum |
Allium elmendorfii |
|
Phenology | Flowering late May–Aug. | Flowering Mar–early Apr. |
Habitat | Generally sandy soils on open or shaded slopes | Sandy soil |
Elevation | 600–2600 m (2000–8500 ft) | 100–200 m (300–700 ft) |
Distribution |
CA; NV; OR
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TX |
Discussion | Of conservation concern. Allium elmendorfii is known only from the Carrizo sands of eastern Bexar, Frio, Wilson, and Atacosa counties. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Source | FNA vol. 26, p. 256. | FNA vol. 26, p. 255. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. austinae, A. bidwelliae, A. campanulatum var. bidwelliae | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) | M. E. Jones ex Ownbey: Res. Stud. State Coll. Wash. 18: 218, fig. 8. (1951) |
Web links |