Allium nevadense

S. Watson

Botany (Fortieth Parallel), 351, plate 38, figs. 1–3. 1871.

IllustratedEndemic
Synonyms: Allium nevadense var. macropetalum M. Peck
Treatment appears in FNA Volume 26. Treatment on page 248. Mentioned on page 224, 229, 249, 260.

Bulbs 1–3, not clustered on stout, primary rhizome, with 0–2 stalked, basal bulbels, ovoid, 1–2 × 0.8–1.5 cm; outer coats enclosing 1 or more bulbs, brown, membranous, usually prominently cellular-reticulate, cells ± transversely elongate, intricately contorted, without fibers; inner coats white or pinkish, cells elongate, intricately contorted. Leaves persistent, 1, basally sheathing, sheath not extending much above soil surface; blade solid, terete, 10–20 cm × 1–3 mm. Scape persistent, solitary, erect, ± solid, terete, 5–15 cm × 1–2.5 mm. Umbel persistent, erect, compact, 5–25-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 3–7-veined, ovate to lanceolate, ± equal, apex acuminate. Flowers stellate, 7–12 mm; tepals spreading, white or pinkish white with dark-pink midveins, lanceolate to ovate, ± equal, becoming papery in fruit, margins entire, apex acute to acuminate; stamens included; anthers purple; pollen yellow; ovary crested; processes 6, prominent, ± triangular, margins entire to notched or shallowly toothed; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 8–16 mm. Seed-coat dull; cells minutely roughened. 2n = 14, 28.


Phenology: Flowering Apr–Jun.
Habitat: Sandy, rocky, or occasionally clay soils on desert plains and hillsides
Elevation: 1400–1700 m

Distribution

V26 442-distribution-map.jpg

Ariz., Calif., Colo., Idaho, Nev., Oreg., Utah.

Discussion

Selected References

None.

Lower Taxa

None.

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

... more about "Allium nevadense"
versatile +  and dorsifixed +
cordate +  and linear +
acute +  and acuminate +
Dale W. McNeal Jr. +  and T. D. Jacobsen +
S. Watson +
whorled +, opposite +  and alternate +
dilated +
straight +
10 cm100 mm <br />0.1 m <br /> (20 cm200 mm <br />0.2 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
conspicuous +
1;several +
1cm +  and 2cm +
1 +  and 3 +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
roughened +  and smooth +
elongate +
membranous +
Ariz. +, Calif. +, Colo. +, Idaho +, Nev. +, Oreg. +  and Utah. +
1400–1700 m +
connate-coroniform +  and dilated +
sessile +  and pedicellate +
unisexual +  and bisexual +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
loculicidal +
membranaceous +  and leathery +
Sandy, rocky, or occasionally clay soils on desert plains and hillsides +
paired +, paniculate +  and racemose +
pinkish +  and white +
persistent +
entire +  and notched or shallowly toothed +
gray +  and brown +
crested +
many;several +
spreading +  and erect +
0.8 cm8 mm <br />0.008 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
membranous +
zygomorphic +  and actinomorphic +
Flowering Apr–Jun. +
triangular +
Botany (Fortieth Parallel), +
persistent +
5cm +  and 15cm +
1mm +  and 2.5mm +
wind-distributed +
1 +  and many +
obovoid +
Illustrated +  and Endemic +
adnate +  and free +
1 +  and several +
Allium nevadense var. macropetalum +
Allium nevadense +
species +
pinkish white;white +
persisting +
distinct +
lanceolate +  and ovate +
sepaloid +  and petaloid +
narrower +
5-25-flowered +
persistent +
hemispheric +
9 +, 8 +  and 7 +