Allium munzii |
Allium macropetalum |
|
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Munz's onion |
Arizona onion, largeflower onion |
|
Bulbs | usually solitary, not clustered on stout, primary rhizome, ovoid, 1–1.5 × 0.8–1.4 cm; outer coats enclosing single bulb, reddish brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows proximal to roots, ± quadrate, without fibers; inner coats pale brown to white or pink, cells obscure, quadrate. |
1–5, without basal bulbels, ovoid, 1.5–2.5 × 1–2 cm; outer coats enclosing 1 or more bulbs, brown, reticulate, cells usually coarse-meshed, open, fibrous; inner coats whitish, cells vertically elongate and regular or obscure. |
Leaves | persistent, withering from tip by anthesis, 1, basally sheathing, sheath not extending much above soil surface; blade solid, terete, 15–25 cm × 0.5–1.5 mm. |
persistent, green at anthesis, 2, sheathing; blade solid, channeled, semiterete, 8–20 cm × 1–3 mm, margins entire. |
Scape | persistent, solitary, erect, solid, terete, 15–35 cm × 1–2.5 mm. |
persistent, solitary, erect, terete or ± 4-angled, 5–20 cm × 1–4 mm. |
Umbel | persistent, erect, compact, 10–35-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 5–7-veined, lanceolate to ovate, ± equal, apex abruptly acuminate. |
persistent, erect, compact to loose, 10–20-flowered, hemispheric to globose, bulbils unknown; spathe bracts persistent, 2–3, 3–5-veined, ovate to lanceolate, ± equal, apex acute to short-acuminate. |
Flowers | campanulate, 6–8 mm; tepals erect, white with greenish midveins, becoming deep pink to red in fruit, ovate to nearly round, ± equal, becoming papery in fruit, margins entire to finely denticulate, apex obtuse (rarely acute), shallowly emarginate; stamens included; anthers yellow; pollen yellow; ovary crested; processes 6, prominent, ± triangular, margins entire, apex emarginate; style linear, equaling stamens; stigma capitate, 3-lobed, lobes slender, recurved; pedicel spreading, straight, 7–12 mm, becoming rigid and ± reflexed in fruit. |
campanulate, 8–12 mm; tepals spreading, pink with deeper pink or reddish midveins, lanceolate, ± equal, becoming papery in fruit, not investing capsule, margins entire, apex obtuse to acuminate, midrib scarcely thickened; stamens included; anthers yellow or purple; pollen yellow; ovary usually conspicuously crested; processes 6, central, usually connate in pairs across septa, ± erect, flattened, triangular, to 2 mm, margins entire, mostly well developed in fruit; style linear, equaling stamens; stigma capitate, unlobed or obscurely lobed; pedicel 5–20 mm. |
Seed | coat dull; cells minutely roughened. |
coat shining; cells smooth, without central papillae. |
2n | = 14. |
= 14. |
Allium munzii |
Allium macropetalum |
|
Phenology | Flowering Apr–mid May. | Flowering late Mar–Jun. |
Habitat | Clay soil on grassy slopes | Desert plains and hills |
Elevation | 400–900 m (1300–3000 ft) | 300–2500 m (1000–8200 ft) |
Distribution |
CA |
AZ; CO; NM; TX; UT
|
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 253. | FNA vol. 26. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | A. fimbriatum var. munzii | A. deserticola, A. reticulatum var. deserticola |
Name authority | (Ownbey & Aase ex Traub) McNeal: Aliso 13: 415. (1992) | Rydberg: Bull. Torrey Bot. Club 31: 401. (1904) |
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