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red skinned onion, redskin onion

Geyer's onion

Bulbs

2–3+, usually clustered, short-rhizomatous at base, rhizome not stout or iris-like, oblong, 2–3 × 1–1.5 cm;

outer coats enclosing single bulb, ± reddish brown, membranous, striations fine, cells narrow, elongate, vertical;

inner coats deep red to white, finely striate, cells narrow, vertically elongate.

2–10+, not rhizomatous, ovoid or more elongate, 1–2.5 × 0.8–2 cm;

outer coats enclosing 1 or more bulbs, gray or brown, reticulate, cells rather coarse-meshed, open, fibrous;

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

Leaves

persistent, green at anthesis, 3–6, basally sheathing, sheaths not extending much above soil level;

blade solid, terete, 3-angled, 15–30 cm × 1–4 mm, margins entire.

persistent, usually green at anthesis, usually 3–5, sheathing less than 1/4 scape;

blade solid, ± straight, flat, channeled, (6–)12–30 cm × 1–3(–5) mm, margins entire or denticulate.

Scape

persistent, 1–2, clustered, erect, solid, slightly compressed, 10–40 cm × 1–3 mm.

persistent, solitary, erect, terete or somewhat 2-angled, 10–50 cm × 1–3 mm.

Umbel

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

spathe bracts persistent, 2–4, 2–3-veined, ovate-lanceolate, ± equal, apex obtuse.

persistent, erect, compact, 10–25-flowered, hemispheric to globose, not producing bulbils, or 0–5-flowered, largely replaced by ovoid, acuminate bulbils;

spathe bracts persistent, 2–3, mostly 1-veined, ovate to lanceolate, ± equal, apex acuminate, beakless.

Flowers

campanulate, 6–8 mm;

tepals erect, white to rose, with darker midvein, broadly ovate to lance-ovate, ± equal, becoming rigid and permanently investing capsule, margins entire, apex acute;

stamens included;

anthers white;

pollen white to dark gray;

ovary crested;

processes 6, rounded, short, densely papillose;

style linear, equaling stamens;

stigma capitate, scarcely thickened, unlobed;

pedicel 1–2 cm.

urceolate-campanulate, (4–)6–8(–10) mm;

tepals erect or spreading, pink to white, ovate to lanceolate, ± equal, not withering in fruit and permanently investing fruit, or withering if fruit not produced, midribs papillose, becoming callous-keeled, margins often obscurely toothed, apex obtuse to acuminate;

stamens included;

anthers yellow;

pollen yellow;

ovary when present, inconspicuously crested;

processes 6, central, low, distinct or connate in pairs across septa, ± erect, rounded, margins entire, becoming variously developed or obsolete in fruit;

style linear, ± equaling stamens;

stigma capitate, unlobed or obscurely lobed;

pedicel becoming rigid and stiffly spreading in fruit, 8–13 mm.

Seed

coat dull;

cells minutely roughened.

coat shining;

cells each with minute, central papilla.

2n

= 14.

Allium haematochiton

Allium geyeri

Phenology Flowering Mar–May.
Habitat Dry slopes and ridges of clay or stony soil
Elevation 50–800 m (200–2600 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

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

Key
1. Umbel fully floriferous, not producing bulbils, ovaries mostly all producing seeds.
var. geyeri
1. Umbel not fully floriferous, producing 0–5, mostly sterile flowers, flowers mostly replaced by ovoid, acuminate bulbils.
var. tenerum
Source FNA vol. 26, p. 246. FNA vol. 26, p. 237.
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. 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. 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
Subordinate taxa
A. geyeri var. geyeri, A. geyeri var. tenerum
Synonyms A. marvinii
Name authority S. Watson: Proc. Amer. Acad. Arts 14: 227. (1879) S. Watson: Proc. Amer. Acad. Arts 14: 227. (1879)
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