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autumn onion, prairie onion

prairie onion, textile onion, white wild onion

Bulbs

1–5+, usually clustered, often short-rhizomatous at base, rhizome not stout or iris-like, ovoid, 2–4 × 1–2.5 cm;

outer coats enclosing 1 or more bulbs, grayish or brownish, membranous, fibers parallel, few, or sometimes reticulate, cells obscure, finely meshed;

inner coats whitish to pinkish, cells obscure, ± quadrate.

1–3+, not rhizomatous, without basal bulbels, ovoid, 1.2–2.5 × 1–2 cm;

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

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

Leaves

persistent, green at anthesis, 3–5, basally sheathing, sheaths never extending much above soil level;

blade solid, flat, channeled, 14–35 cm × 1–5 mm, margins ± entire.

persistent, green at anthesis, 2, sheathing;

blade solid, ± straight, channeled, semiterete, 10–40 cm × 1–3(–5) mm, margins entire or denticulate.

Scape

persistent, solitary, erect, or, if nodding at anthesis, becoming erect, solid, terete or ± 4-angled, particularly distally, 20–50 cm × 1–3.5 mm.

persistent, solitary, erect, ± terete, 5–30(–40) cm × 1–3 mm.

Umbel

persistent, nodding, becoming erect, ± loose, 9–40-flowered, hemispheric, bulbils unknown;

spathe bracts persistent, 2, 2–4-veined, lanceolate, ± equal, apex acuminate.

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

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

Flowers

stellate, 5–8 mm;

tepals spreading, deep pink, elliptic-lanceolate, ± equal, withering in fruit, margins entire, apex acute, midribs not thickened;

stamens exserted;

anthers yellow;

pollen yellow;

ovary conspicuously crested;

processes 6, distinct, flattened, ± triangular, margins entire or toothed;

style exserted, linear, ± equaling stamens;

stigma capitate, scarcely thickened, unlobed;

pedicel 0–20 mm.

urceolate to campanulate, 5–7 mm;

tepals erect, white or rarely pink, with red or reddish brown midribs;

outer whorl broadly ovate to lanceolate, unequal, becoming callous-keeled and permanently investing capsule, margins often obscurely toothed apically, apex obtuse to acuminate;

inner whorl narrower, margins entire, apex distinctly spreading;

stamens included;

anthers yellow;

pollen yellow;

ovary ± conspicuously crested;

processes 6, central, distinct or connate in pairs across septa, ± erect, rounded, to 1 mm, margins entire, becoming variously developed or obsolete in fruit;

style linear, equaling filaments;

stigma capitate, unlobed or obscurely lobed;

pedicel 5–20 mm.

Seed

coat dull;

cells minutely roughened.

coat shining;

cells ± smooth, without central papillae.

2n

= 14.

= 14, 28.

Allium stellatum

Allium textile

Phenology Flowering Jul–Oct. Flowering May–Jun.
Habitat Often on calcareous soils Dry plains and hills
Elevation 300–2200 m (1000–7200 ft) 300–2400 m (1000–7900 ft)
Distribution
from FNA
AR; IA; IL; KS; MI; MN; MO; ND; NE; OK; SD; TN; TX; WI; MB; ON; SK
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; IA; ID; KS; MN; MT; ND; NE; NM; NV; SD; UT; WA; WY; AB; MB; SK
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 26. FNA vol. 26, p. 243.
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. sanbornii, A. sativum, A. schoenoprasum, A. scilloides, A. serra, A. sharsmithiae, A. shevockii, A. simillimum, A. siskiyouense, A. speculae, 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. speculae, A. stellatum, A. tolmiei, A. tribracteatum, A. tricoccum, A. triquetrum, A. tuberosum, A. tuolumnense, A. unifolium, A. validum, A. victorialis, A. vineale, A. yosemitense
Synonyms A. aridum, A. reticulatum, A. reticulatum var. playanum
Name authority Ker Gawler: Bot. Mag. 38: plate 1576. (1813) A. Nelson & J. F. Macbride: Bot. Gaz. 56: 470. (1913)
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