Allium acuminatum

Hooker

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

IllustratedEndemic
Synonyms: Allium acuminatum var. cuspidatum Fernald Allium cuspidatum
Treatment appears in FNA Volume 26. Treatment on page 261. Mentioned on page 231, 262.

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, ± yellowbrown, 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 lanceovate, 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

V26 485-distribution-map.jpg

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

Discussion

Selected References

None.

Lower Taxa

None.

"thicker" is not a number."broad" is not a number.

... more about "Allium acuminatum"
versatile +  and dorsifixed +
cordate +  and linear +
Dale W. McNeal Jr. +  and T. D. Jacobsen +
Hooker +
whorled +, opposite +  and alternate +
dilated +
straight +
7 cm70 mm <br />0.07 m <br /> (30 cm300 mm <br />0.3 m <br />) +
channeled +  and subterete +
1mm;3mm +
conspicuous +
0.8cm +  and 1.6cm +
1 +  and 12 +
0.9 cm9 mm <br />0.009 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
roughened +  and smooth +
quadrate +, polygonal +  and square +
B.C. +, Ariz. +, Calif. +, Colo. +, Idaho +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
100–1500 m +
connate-coroniform +  and dilated +
sessile +  and pedicellate +
unisexual +  and bisexual +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
loculicidal +
membranaceous +  and leathery +
Dry slopes and plains +
paired +, paniculate +  and racemose +
persistent +
denticulate +
spreading +  and recurved +
longer and wider +
crested +
many;several +
spreading +  and erect +
0.6 cm6 mm <br />0.006 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
membranous +
zygomorphic +  and actinomorphic +
Flowering Apr–Jul. +
rounded +  and 2-lobed +
Fl. Bor.-Amer. +
persistent +
10cm +  and 35cm +
1mm +  and 3mm +
shining +  and dull +
wind-distributed +
1 +  and many +
obovoid +
Illustrated +  and Endemic +
adnate +  and free +
1 +  and several +
Allium acuminatum var. cuspidatum +  and Allium cuspidatum +
Allium acuminatum +
species +
pink;rose-purple or white +
persisting +
distinct +
keeled +, lanceolate +  and lanceovate +
unequal +
sepaloid +  and petaloid +
narrower +
10-40-flowered +
persistent +
sinuous +
9 +, 8 +  and 7 +