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two-edged 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 yosemitense

Distribution
[WildflowerSearch map]
[BONAP county 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.

Source Flora of Oregon, volume 1, page 136
Nick Otting, Richard Brainerd, Barbara Wilson
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. 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
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