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Grand Coulee onion

little river canyon onion

Bulbs

1–5+, not clustered on stout, primary rhizome, ovoid, 1–1.5 × 0.8–1.4 cm;

outer coats enclosing 1 or more bulbs, brownish, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers;

inner coats white, cells obscure, quadrate.

1–5+, not rhizomatous, ovoid, 1–5 × 1–2 cm;

outer coats usually enclosing single bulb, grayish or brownish, reticulate, cells very fine-meshed, open;

inner coats whitish, cells vertically elongate, regular.

Leaves

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

blade solid, flat, broadly channeled, falcate, 10–35 cm × 1–3(–5) mm, margins entire.

persistent, green at anthesis, 3+, sheathing;

blade solid, flat, channeled, 10–30 cm × 1–2 mm, margins entire.

Scape

persistent, solitary, erect, solid, terete, enlarged apically but distinctly constricted just proximal to inflorescence, 15–20 cm × 1.5–4 mm.

persistent, solitary (sometimes 2 in cultivated plants), erect, terete, 20–30 cm × 1–3 mm.

Umbel

persistent, erect, compact, 15–30-flowered, hemispheric to globose, bulbils unknown;

spathe bracts persistent, 3, 5–7-veined, ovate, ± equal, apex acute.

persistent, erect, compact, 10–15-flowered, hemispheric-globose, bulbels unknown;

spathe bracts persistent, 3, usually 1-veined, lanceolate, ± equal, apex long-acuminate.

Flowers

± stellate, 7–8 mm;

tepals spreading, light pink to rose with prominent green or reddish midribs, narrowly lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate;

stamens exserted;

anthers blue-gray;

pollen light blue to gray;

ovary crested;

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

style exserted, linear;

stigma capitate, unlobed;

pedicel 10–20 mm.

± campanulate, 5–6 mm;

tepals widely spreading, pinkish, elliptic, ± equal, remaining thin and withering over ovary, margins entire, apex obtuse, involute at tip;

stamens included;

anthers light yellow;

pollen white to light yellow;

ovary crested;

processes 6, central, horizontally spreading, flattened, triangular, margins entire;

style linear, equaling stamens;

stigma capitate, obscurely 3-lobed;

pedicel 9–20 mm.

Seed

coat shining;

cells smooth.

coat shining;

cells each with minute, central papilla.

2n

= 14.

= 14.

Allium constrictum

Allium speculae

Phenology Flowering May–Jul. Flowering Jun.
Habitat Shallow, lithosolic soils, often dry and sandy On gneiss “flat-rocks” and sandy soil of Piedmont
Elevation 300–500 m (1000–1600 ft) 300 m (1000 ft)
Distribution
from FNA
WA
[WildflowerSearch map]
[BONAP county map]
from FNA
AL; GA
[BONAP county map]
Discussion

Of conservation concern.

Allium constrictum is known only from Douglas, Grant, and Lincoln counties.

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

Of conservation concern.

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

Source FNA vol. 26. 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. campanulatum, A. canadense, A. cepa, A. cernuum, A. columbianum, 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. 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. 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. constrictum
Name authority (Ownbey & Mingrone) P. M. Peterson: Syst. Bot. 13: 211. (1988) Ownbey & Aase: Rhodora 61: 70. (1959)
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