Allium acuminatum

Hooker

Fl. Bor.-Amer. 2: 184, plate 196. 1838

Synonyms: Allium acuminatum var. cuspidatum FernaldAllium cuspidatum unknown
Treatment appears in FNA Volume 26. Treatment on page 261. Mentioned on page 231, 262.
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Bulbs 1–12+, not basally clustered, not forming rhizomes, ovoid to ± globose, 0.8–1.6 × 0.9–1.6 cm; outer coats enclosing 1 or more renewal bulbs, ± yellow-brown, prominently cellular-reticulate, membranous, cells square or polygonal, walls thick, obscurely sinuous, without fibers; inner coats white, cells obscure, ± quadrate. Leaves persistent, withering from tip by anthesis, 2–3, basally sheathing, sheaths not extending much above soil surface; blade solid, subterete or ± channeled, 7–30 cm × 1–3 mm, margins entire. Scape persistent, solitary, erect, solid, terete, 10–35 cm × 1–3 mm. Umbel persistent, erect, loose, 10–40-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 3–7-veined, lanceolate to ovate, ± equal, apex acuminate. Flowers campanulate, 8–15 mm; tepals erect, pink to rose-purple, or white, lanceolate to lance-ovate, unequal, becoming rigid and keeled in fruit, margins finely denticulate (inner tepal more prominently so), apex acuminate, outer tepal longer and wider than inner, spreading to recurved at tip, inner tepal with strongly recurved tips; stamens included; anthers yellow; pollen yellow; ovary crested; processes 3, central, 2-lobed, rounded, minute, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, obscurely 3-lobed; pedicel 6–25 mm. Seed coat dull or shining; cells minutely roughened. 2n = 14.

Phenology: Flowering Apr–Jul.
Habitat: Dry slopes and plains
Elevation: 100–1500 m

Distribution

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B.C., Ariz., Calif., Colo., Idaho, Nev., Oreg., Utah, Wash., Wyo.

Discussion

References

None.

Lower Taxa

No lower taxa listed.