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tanners canyon onion

Bulbs

usually 1 of a cluster, sometimes short-rhizomatous basally, elongate, to 5 × 1–1.5 cm;

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

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

Leaves

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

blade solid, flat, broadly channeled, 25–50 cm × 3–7 mm, margins entire or minutely denticulate.

Scape

persistent, solitary, erect, terete or ± 4-angled, 30–50 cm × 1–3.5 mm.

Umbel

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

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

Flowers

± stellate, 5–10 mm;

tepals spreading or reflexed, white or pink, lanceolate, ± equal, withering in fruit and exposing capsules, margins entire, apex acute, midrib becoming noticeably thickened;

stamens ± equaling tepals to exserted;

anthers purple;

pollen light yellow;

ovary conspicuously crested;

processes 6, central, usually connate in pairs across septa, ± erect, flattened, to 2 mm, margins lacerate, usually well developed in fruit;

style linear, equaling stamens;

stigma capitate, unlobed or obscurely lobed;

pedicel 15–25 mm, elongating in fruit.

Seed

coat shining;

cells each with minute, central papilla.

2n

= 28.

Allium plummerae

Phenology Flowering Jun–Sep.
Habitat Rocky slopes, stream banks, and marshy ground, mountains
Elevation 1600–2800 m (5200–9200 ft)
Distribution
from FNA
AZ; Mexico
[BONAP county map]
Source FNA vol. 26, p. 242.
Parent taxa 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. 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
Name authority S. Watson: Proc. Amer. Acad. Arts 18: 195. (1883)
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