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dusky onion, rosy Sierra onion, Sierra onion

passey's onion

Bulbs

1–3, producing cluster of stalked basal bulbels distal to roots or filiform rhizomes to 10 cm and terminated by bulbels, ovoid, 1–2 × 0.6–1.4 cm;

outer coats enclosing 1 or more bulbs, brown to gray, membranous, cellular-reticulate, cells ± quadrate, walls very sinuous, without fibers;

inner coats pink to white, cells obscure, vertically elongate.

2–3+, not rhizomatous, ovoid, 1–2 × 1.2–2 cm;

outer coats enclosing 1 or more bulbs, light brown, reticulate, fibrous;

inner coats whitish to light brown, cells vertically elongate and regular or obscure.

Leaves

persistent, withering from tip by anthesis, 2, basally sheathing, sheaths not extending much above soil surface;

blade solid, flat, distinctly concave-convex, 8–40 cm × 1–5 mm, margins entire.

persistent, green at anthesis, 2–3, sheathing;

blade solid, flat, ± falcate, 10–20 cm × 3–6 mm, margins entire.

Scape

persistent, solitary or clustered, 1–3, erect, solid, terete, 10–30 cm × 1–5 mm.

persistent, solitary, erect, terete or ± winged-angled, mostly 10–20 cm × 1–2.5 mm.

Umbel

persistent, erect, loose, 10–50-flowered, ± globose, bulbils unknown;

spathe bracts persistent, 2–3, 3–5-veined, ovate to lanceolate, ± equal, apex acuminate.

persistent, erect, compact, 8–27-flowered, hemispheric-globose, bulbils unknown;

spathe bracts persistent, 2–4, mostly 1-veined, ovate, ± equal, apex acuminate to caudate.

Flowers

stellate, 5–8 mm;

tepals spreading, rose to purple (rarely white) with darker purple crescent adaxially basally, lanceolate to ovate, ± equal, carinate in fruit, becoming erect, ± shiny, rigid, margins entire, apex acuminate, strongly involute at tip;

stamens included;

anthers purple;

pollen yellow;

ovary crested;

processes 6, prominent, low, central, triangular, margins minutely denticulate;

style linear, ± equaling stamens;

stigma capitate, scarcely thickened, unlobed;

pedicel 10–20 mm, becoming flexuous and mostly strongly deflexed in fruit.

campanulate, 7–9 mm;

tepals erect, light pink, narrowly lanceolate to lance-ovate, becoming callous-keeled, persistent and permanently investing capsule, margins entire, apex acuminate, inner shorter and narrower than outer, outer strongly keeled and gibbous at base;

stamens included;

anthers yellow;

pollen yellow;

ovary obscurely crested;

processes 6, central, ± erect, rounded, minute, to 1 mm, margins entire;

style linear, equaling stamens;

stigma capitate, scarcely thickened, unlobed;

pedicel 10–18 mm.

Seed

coat shining;

cells each with minute, central papilla.

coat shining;

cells smooth, each with minute, central papilla.

2n

= 14, 28.

Allium campanulatum

Allium passeyi

Phenology Flowering late May–Aug. Flowering Jun.
Habitat Generally sandy soils on open or shaded slopes Shallow, stony, lithosolic soil over dolomitic limestone, hilltops
Elevation 600–2600 m (2000–8500 ft) 1400–1600 m (4600–5200 ft)
Distribution
from FNA
CA; NV; OR
[WildflowerSearch map]
[BONAP county map]
from FNA
UT
[BONAP county map]
Discussion

Of conservation concern.

Allium passeyi is known only from Box Elder County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 26, p. 256. FNA vol. 26, p. 242.
Parent taxa Liliaceae > Allium Liliaceae > Allium
Sibling taxa
A. aaseae, A. abramsii, A. acuminatum, A. ampeloprasum, A. amplectens, A. anceps, A. atrorubens, A. bigelovii, A. bisceptrum, A. bolanderi, A. brandegeei, A. brevistylum, A. burlewii, A. canadense, A. cepa, A. cernuum, A. columbianum, A. constrictum, A. coryi, A. cratericola, A. crenulatum, A. crispum, A. cuthbertii, A. denticulatum, A. diabolense, A. dichlamydeum, A. dictuon, A. douglasii, A. drummondii, A. elmendorfii, A. falcifolium, A. fibrillum, A. fimbriatum, A. fistulosum, A. geyeri, A. gooddingii, A. haematochiton, A. hickmanii, A. hoffmanii, A. howellii, A. hyalinum, A. jepsonii, A. kunthii, A. lacunosum, A. lemmonii, A. macropetalum, A. macrum, A. madidum, A. membranaceum, A. monticola, A. munzii, A. neapolitanum, A. nevadense, A. nevii, A. nigrum, A. obtusum, A. oleraceum, A. paniculatum, A. parishii, A. parryi, A. parvum, A. passeyi, A. peninsulare, A. perdulce, A. platycaule, A. plummerae, A. praecox, A. punctum, A. rhizomatum, A. robinsonii, A. rotundum, A. runyonii, A. sanbornii, A. sativum, A. schoenoprasum, A. scilloides, A. serra, A. sharsmithiae, A. shevockii, A. simillimum, A. siskiyouense, A. speculae, A. stellatum, A. textile, A. tolmiei, A. tribracteatum, A. tricoccum, A. triquetrum, A. tuberosum, A. tuolumnense, A. unifolium, A. validum, A. victorialis, A. vineale, A. yosemitense
A. aaseae, A. abramsii, A. acuminatum, A. ampeloprasum, A. amplectens, A. anceps, A. atrorubens, A. bigelovii, A. bisceptrum, A. bolanderi, A. brandegeei, A. brevistylum, A. burlewii, A. campanulatum, A. canadense, A. cepa, A. cernuum, A. columbianum, A. constrictum, A. coryi, A. cratericola, A. crenulatum, A. crispum, A. cuthbertii, A. denticulatum, A. diabolense, A. dichlamydeum, A. dictuon, A. douglasii, A. drummondii, A. elmendorfii, A. falcifolium, A. fibrillum, A. fimbriatum, A. fistulosum, A. geyeri, A. gooddingii, A. haematochiton, A. hickmanii, A. hoffmanii, A. howellii, A. hyalinum, A. jepsonii, A. kunthii, A. lacunosum, A. lemmonii, A. macropetalum, A. macrum, A. madidum, A. membranaceum, A. monticola, A. munzii, A. neapolitanum, A. nevadense, A. nevii, A. nigrum, A. obtusum, A. oleraceum, A. paniculatum, A. parishii, A. parryi, A. parvum, A. peninsulare, A. perdulce, A. platycaule, A. plummerae, A. praecox, A. punctum, A. rhizomatum, A. robinsonii, A. rotundum, A. runyonii, A. sanbornii, A. sativum, A. schoenoprasum, A. scilloides, A. serra, A. sharsmithiae, A. shevockii, A. simillimum, A. siskiyouense, A. speculae, A. stellatum, A. textile, A. tolmiei, A. tribracteatum, A. tricoccum, A. triquetrum, A. tuberosum, A. tuolumnense, A. unifolium, A. validum, A. victorialis, A. vineale, A. yosemitense
Synonyms A. austinae, A. bidwelliae, A. campanulatum var. bidwelliae
Name authority S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) N. H. Holmgren & A. H. Holmgren: Brittonia 26: 309, figs. 1, 4. (1974)
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