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yellowflower onion

rock onion

Bulbs

1–5, without basal bulbels, ovoid, 1–1.8 × 0.7–1.5 cm;

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

inner coats whitish or brownish, cells intricately contorted, walls not sinuous.

1–3, not clustered on stout, primary rhizome, globose to ovate, 0.6–2 × 0.5–1.5 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, lacking cellular reticulation.

Leaves

persistent, green at anthesis, 3–5, sheathing;

blade solid, flat, channeled, 10–30 cm × 1–3 mm, margins entire.

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

blade solid, flat or channeled, ± falcate, 12–38 cm × 2–3 mm, margins entire.

Scape

persistent, solitary, erect, ± terete, 10–30 cm × 1–3 mm.

persistent, solitary, erect, solid, ± terete, not expanded proximal to inflorescence, 9–32 cm × 0.5–4 mm.

Umbel

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

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

persistent, erect, loose, 10–20-flowered, globose, bulbils unknown;

spathe bracts persistent, 2, 3–7-veined, lanceolate to lance-ovate, ± equal, apex abruptly acute.

Flowers

campanulate to ± stellate, 6–9 mm;

tepals spreading, bright yellow, sometimes tinged with red, fading with age and sometimes upon drying, ovate to lanceolate, ± equal, becoming papery and rigid in fruit, margins entire, apex obtuse or acute, midribs somewhat thickened;

stamens included;

anthers yellow;

pollen yellow;

ovary crestless or rarely crested;

processes 6, central, low, sometimes distinct or connate in pairs across septa, rounded, margins entire;

style linear, ± equaling stamens;

stigma capitate, unlobed or obscurely lobed;

pedicel 5–20 mm.

campanulate, 5–7 mm;

tepals spreading, white or pinkish with prominent red midveins, narrowly lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate;

stamens equaling tepals or exserted;

anthers yellow;

pollen yellow;

ovary crested;

processes 3, thick, obtuse, margins entire;

style linear, equaling stamens;

stigma capitate, scarcely thickened, unlobed;

pedicel 5–20 mm.

Seed

coat shining;

cells smooth.

coat dull;

cells ± smooth.

2n

= 14.

= 14.

Allium coryi

Allium macrum

Phenology Flowering Apr–May. Flowering Apr–May.
Habitat Rocky slopes and plains, mountains Barren, gravelly soils
Elevation 800–1400 m (2600–4600 ft) 100–1400 m (300–4600 ft)
Distribution
from FNA
TX
[BONAP county map]
from FNA
OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Allium coryi is known only from western Texas.

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

Source FNA vol. 26, p. 239. FNA vol. 26, p. 267.
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. 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. 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. equicaeleste
Name authority M. E. Jones: Contr. W. Bot. 17: 21. (1930) S. Watson: Proc. Amer. Acad. Arts 14: 233. (1879)
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