Allium brandegeei |
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Brandegee's onion |
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Bulbs | 1–5, not clustered on stout, primary rhizome, ovoid to globose, 0.7–1.5 × 0.6–1.4 cm; outer coats enclosing 1 or more bulbs, brown to grayish brown, membranous, usually distinctly cellular-reticulate, cells isodiametric or ± narrowly hexagonal, transversely elongate, without fibers; inner coats red to purple or white, cells obscure, quadrate to ± transversely elongate. |
Leaves | usually persistent, green at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat or channeled, ± falcate, 8–27 cm × 1–3 mm, margins entire. |
Scape | persistent, solitary, erect, solid, terete, 3–10(–20) cm × 1–3 mm. |
Umbel | persistent, erect, compact, 8–25-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 7–10-veined, ovate, ± equal, apex acuminate. |
Flowers | campanulate, 5–8 mm; tepals erect, white with prominent green to purplish midvein, lanceolate to elliptic, ± equal, becoming involute at tip and rigid in fruit, margins entire, apex obtuse to acuminate; stamens included; anthers yellow; pollen yellow or white; ovary crestless or obscurely crested; processes 3, low, rounded, central, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 5–15 mm. |
Seed | coat shining; cells smooth. |
2n | = 14. |
Allium brandegeei |
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Phenology | Flowering late Apr–Jul. |
Habitat | Sandy, rocky soil |
Elevation | 1200–3300 m (3900–10800 ft) |
Distribution |
CO; ID; MT; NV; OR; UT; WY
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Source | FNA vol. 26, p. 266. |
Parent taxa | Liliaceae > Allium |
Sibling taxa | |
Synonyms | A. diehlii, A. minimum, A. tribracteatum var. diehlii |
Name authority | S. Watson: Proc. Amer. Acad. Arts 17: 380. (1882) |
Web links |