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two-edged onion

Blue Mt. onion

Bulbs

1–5; ovoid;

outer coats enclosing 1 or more bulbs, membranous; more or less prominently cellular-reticulate;

cells transversely elongate; in regular vertical rows, narrowly rectangular; without fibers.

Leaves

usually deciduous with scape, withering from tip at anthesis, 2;

blades solid; flat, falcate, 7–26 cm × 4–6 mm.

Scapes

usually forming abscission layer and deciduous with leaves after seeds mature; solitary; erect; solid, flattened, narrowly winged, 5–15 cm × 1–3 mm.

Umbels

persistent; erect; more or less compact, 15–35-flowered, hemispheric;

pedicels 7–17(20) mm;

spathe bracts 2.

Flowers

8–12 mm;

tepals spreading, linear-lanceolate; more or less equal, light pink with diffuse greenish midveins;

margins entire;

apex acute;

stamens more or less equaling tepals;

ovary crested with 6 inconspicuous processes;

stigma scarcely thickened, unlobed.

2n

=14.

Allium anceps

Allium dictuon

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Heavy, usually barren, clay soils, rocky openings in sagebrush steppe. Flowering May–Jun. 700–1900 m. BR, BW, Owy. CA, ID, NV. Native.

[This taxon does not have a floristic treatment in Flora of Oregon.]

Source Flora of Oregon, volume 1, page 136
Nick Otting, Richard Brainerd, Barbara Wilson
Flora of Oregon, volume 1
Sibling taxa
A. acuminatum, A. ampeloprasum, A. amplectens, A. bisceptrum, A. bolanderi, A. brandegeei, A. campanulatum, A. cernuum, A. crenulatum, A. dictuon, A. douglasii, A. falcifolium, A. fibrillum, A. geyeri, A. lemmonii, A. macrum, A. madidum, A. membranaceum, A. nevadense, A. nevii, A. nigrum, A. parvum, A. peninsulare, A. platycaule, A. punctum, A. robinsonii, A. sanbornii, A. schoenoprasum, A. siskiyouense, A. tolmiei, A. triquetrum, A. unifolium, A. validum, A. vineale
A. acuminatum, A. ampeloprasum, A. amplectens, A. anceps, A. bisceptrum, A. bolanderi, A. brandegeei, A. campanulatum, A. cernuum, A. crenulatum, A. douglasii, A. falcifolium, A. fibrillum, A. geyeri, A. lemmonii, A. macrum, A. madidum, A. membranaceum, A. nevadense, A. nevii, A. nigrum, A. parvum, A. peninsulare, A. platycaule, A. punctum, A. robinsonii, A. sanbornii, A. schoenoprasum, A. siskiyouense, A. tolmiei, A. triquetrum, A. unifolium, A. validum, A. vineale
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