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Nevius' garlic, Nevius' onion

Jepson's onion

Bulbs

1–5+, not clustered on stout, primary rhizome, ovoid, 1–2 × 1–2 cm;

outer coats enclosing 1 or more bulbs, light brown, membranous, ± reticulate, cells quadrate to polygonal, vertically oblong, without fibers;

inner coats white or pink, cells obscure, quadrate.

1–2, not clustered on stout, primary rhizome, ovoid to subglobose, 1.5–2.5 × 1–2 cm;

outer coats enclosing single bulb, gray-brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers;

inner coats light brown or white, cells obscure, quadrate.

Leaves

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

blade solid, flat or ± channeled, falcate, 12–25 cm × 2–3 mm, margins entire.

persistent, withering from tip by anthesis, 1, basally sheathing, sheath not extending much above soil surface;

blade solid, terete, 22–42 cm × 1–4 mm.

Scape

persistent, 1–3, erect, solid, terete or somewhat flattened, 2-edged, not expanded proximal to inflorescence, 15–30 cm × 1–3 mm.

persistent, solitary, erect, solid, terete, 25–37 cm × 1–3 mm.

Umbel

persistent, erect, compact, 10–30-flowered, hemispheric, bulbils unknown;

spathe bracts persistent, 2, 5–6-veined, ovate, ± equal, apex acute.

persistent, erect, ± compact, 20–60-flowered, hemispheric, bulbils unknown;

spathe bracts persistent, 3–4, 4–5-veined, ovate, ± equal, apex long-acuminate.

Flowers

campanulate to substellate, 6–8 mm;

tepals spreading, rose-colored, lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate;

stamens ± equaling tepals, or exserted;

anthers blue-gray;

pollen light blue or gray;

ovary distinctly crested;

processes 6, 2 per lobe, low, rounded, margins entire;

style exserted, linear;

stigma capitate, unlobed;

pedicel 8–12 mm.

campanulate, 7–8.5 mm;

tepals erect, white, flushed with pink near dark pink midveins, ovate-elliptic, ± equal, becoming papery in fruit, margins erose, apex acute to apiculate, outer tepals with reflexed tips;

stamens included;

anthers yellow;

pollen yellow;

ovary crested;

processes 6, prominent, ± triangular, margins erose;

style linear, equaling stamens;

stigma capitate, 3-lobed, lobes slender, recurved;

pedicel 7–20 mm.

Seed

coat dull;

cells smooth.

coat dull or shining;

cells minutely roughened.

2n

= 14.

= 14.

Allium nevii

Allium jepsonii

Phenology Flowering May–Jul. Flowering late May–early Jul.
Habitat Heavy, rocky soils, wet meadows, or along streams Clay soils, including serpentine
Elevation 30–1900 m (100–6200 ft) 300–600 m (1000–2000 ft)
Distribution
from FNA
OR; WA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Allium jepsonii is disjunct in the foothills of the Sierra Nevada.

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

Source FNA vol. 26, p. 267. FNA vol. 26.
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. 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. 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. 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
Synonyms A. douglasii var. nevii A. sanbornii var. jepsonii
Name authority S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) (Ownbey & Aase ex Traub) S. S. Denison & McNeal: Madroño 36: 127. (1989)
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