Overview

Distribution

Localities documented in Tropicos sources

Allium acuminatum Hook.:
China (Asia)
United States (North America)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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B.C.; Ariz., Calif., Colo., Idaho, Nev., Oreg., Utah, Wash., Wyo.
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National Distribution

Canada

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: E. of Cascade Mtns. in WA and OR to sw. MT, s. WY, w. CO, AZ, and n. CA; also Vancouver, B.C., San Juan Islands, and w. WA west of the Cascades. Peripheral.

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Physical Description

Morphology

Description

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.
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Diagnostic Description

Allium acuminatum can be distinguished from other species by the combination of having rose-colored outer tepals which are longer than the inner tepals, and by often having more than 2 concave leaves. The more common A. BREVISTYLUM also has rose-colored tepals, but its leaves are usually more than 4 mm wide.

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Synonym

Allium acuminatum var. cuspidatum Fernald; A. cuspidatum (Fernald) Rydberg
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Ecology

Habitat

Dry slopes and plains; 100--1500m.
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Life History and Behavior

Cyclicity

Flowering/Fruiting

Flowering Apr--Jul.
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Conservation

Conservation Status

National NatureServe Conservation Status

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Wikipedia

Allium acuminatum



Allium acuminatum, also known as the tapertip onion or Hooker's onion, a species in the genus Allium and is native to the Western United States and Canada. Its bulbs are small and spherical and smell like onions.[1] The flowers are pink to purple on a long stem which appear after the leaves have died.

The onions were eaten by first peoples in southern British Columbia. They were harvested in either early spring or late fall and usually cooked in pits.[1]

References

  1. ^ a b Turner, Nancy J. Food Plants of Interior First Peoples (Victoria: UBC Press, 1997) ISBN 0-7748-0606-0
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