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Sanborn's onion

Runyon's onion

Bulbs

1–3, not clustered on stout, primary rhizome, ovoid, 1–2.5(–3) × 1.2–2 cm;

outer coats enclosing 1 or more bulbs, dark reddish brown, chartaceous, lacking cellular reticulation or cells arranged in 2–3 rows distal to roots, ± quadrate, without fibers;

inner coats light brown or white, cells obscurely quadrate.

1–3, bearing cluster of short-stalked, basal bulbels, ovoid, 1.2–2 × 1.2–2 cm;

outer coats enclosing 1 or more bulbs, brownish, reticulate, cells very coarse-meshed, open, fibrous;

inner coats whitish, cells contorted, walls very sinuous.

Leaves

persistent, withering from tip by anthesis, 1, basally sheathing, sheath never extending much above soil level;

blade solid, terete, 30–45 cm × 2–4 mm.

green at anthesis, persistent, 3–6, basally sheathing;

blade solid, flat, channeled, 10–40 cm × 1–4 mm, margins entire.

Scape

persistent, solitary, erect, ± solid, terete, 18–60 cm × 2–3 mm.

persistent, often 2 or more successively produced from single bulb, erect, ± terete, 10–45 cm × 1–4 mm.

Umbel

persistent, erect, compact, 18–190-flowered, hemispheric to globose, bulbils unknown;

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

persistent, erect, loose, usually 10–25-flowered, hemispheric-globose, bulbils unknown;

spathe bracts persistent, usually 3, 3–7-veined, ovate, ± equal, apex acuminate.

Flowers

campanulate, 5–9 mm;

tepals erect, white to pink with darker midveins, unequal, becoming papery in fruit, margins entire or irregular to erose, apex acute or acuminate to long-acuminate;

outer tepals lanceolate to ovate, reflexed at tip;

inner 1/4–1/3 longer than outer, ovate to broadly ovate;

stamens exserted;

anthers yellow or purple;

pollen yellow or white;

ovary crested;

processes 6, prominent, erect, ± triangular, margins entire;

style linear, equaling stamens;

stigma capitate, obscurely to distinctly 3-lobed, lobes erect or spreading, ± stout;

pedicel 8–22 mm.

urceolate, 5–7 mm;

tepals erect, white with pinkish midribs, aging to pink, lanceolate, ± equal, becoming callous-keeled and permanently investing capsule, margins entire, apex obtuse or even emarginate to acute;

stamens ± equaling tepals;

anthers yellow;

pollen yellow;

ovary crestless;

style linear, equaling stamens;

stigma capitate, unlobed or obscurelylobed, pedicel 8–28 mm, elongating in fruit.

Seed

coat dull;

cells minutely roughened.

coat shining;, cells smooth.

2n

= 14.

Allium sanbornii

Allium runyonii

Phenology Flowering Mar–Apr.
Habitat Sandy soils, Rio Grande plains
Elevation 10–200 m (0–700 ft)
Distribution
from USDA
Calif and Oreg
[WildflowerSearch map]
[BONAP county map]
from USDA
Tex Allium runyonii is known only from extreme southern Texas
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

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

Allium runyonii is known only from extreme southern Texas.

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

Key
1. Stigma obscurely 3-lobed; tepal apex acute; anthers mostly yellow; flowering late Jun–Aug.
var. sanbornii
1. Stigma distinctly 3-lobed; tepal apex acuminate to long-acuminate; anthers mostly purple; flowering late Jun–Jul.
var. congdonii
Source FNA vol. 26, p. 248. FNA vol. 26, p. 241.
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. 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. 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. passeyi, A. peninsulare, A. perdulce, A. platycaule, A. plummerae, A. praecox, A. punctum, A. rhizomatum, A. robinsonii, A. rotundum, 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. sanbornii var. congdonii, A. sanbornii var. sanbornii
Name authority Alph. Wood: Proc. Acad. Nat. Sci. Philadelphia 20: 171. (1868) Ownbey: Res. Stud. State Coll. Wash. 18: 198, fig. 4. (1951)
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