Friday, November 20, 2015

Swamp Onion (Allium validum)

7/11/07 Middle Fork Bishop Creek near Lake Sabrina, Inyo National Forest, Eastern Sierra, Inyo County, CA

7/6/02 Onion Valley at 9,200' elevation.
Eastern Sierra, Inyo County, CA

8/15/04 Little Lakes Valley Trailhead @ 10,250' elevation.
Mosquito Flat, Rock Creek, Eastern Sierra, Inyo County, CA 

7/8/00 Onion Valley, Eastern Sierra, Inyo County, CA


COMMON NAME: Swamp Onion

SPECIES: Allium validum

FAMILY: Alliaceae (Onion & Garlic Family)


LOCATION: 9.200' elevation. Abundant near streams, wet/boggy areas approaching trailheads, campground and parking lot at Onion Valley, Eastern Sierra, Inyo County, CA


Treatment from The Jepson Manual (1993):

Bulb 3–5 cm, oblong-ovoid, clustered on short, stout rhizome; outer coat brown to gray, fibrous, vertically lined

Stem 50–100 cm, angled

Leaves 3–6, ± = stem, flat or ± keeled

Inflorescence: flowers 15–40; pedicels 7–12 mm

Flower 6–10 mm; perianth parts ± erect, narrowly lanceolate, acuminate, entire, rose to white; stamens exserted; ovary crest 0

Ecology: Common. Wet meadows

Elevation: 1200–3400 m.  

Bioregional distribution: Northwestern California, High Cascade Range, High Sierra Nevada, Warner Mountains 

Distribution outside California: to British Columbia, Idaho, Nevada

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