Sunday, January 29, 2017

Lewisia nevadensis (Nevada Lewisia, Nevada Bitterroot)

 7/9/2016 Meadow off Hwy. 108 (Sonora Pass Hwy.) at 9,400' elevation, 
Stanislaus National Forest, Sierra Nevadas, Tuolumne County, CA



COMMON NAME: Nevada Lewisia, Nevada Bitterroot

SPECIES: Lewisia nevadensis

FAMILY: Montiaceae (Miner's Lettuce Family)

LIFE LIST DATE: 7/9/2016

LOCATION: Meadow off Hwy. 108 (Sonora Pass Highway) at 9,400' elevation, Stanislaus National Forest, Sierra Nevada range, Tuolumne County, CA


Treatment from Jepson eFlora:

Leaf: few to many, +- open-rosetted, 3--13 cm, thread-like to narrowly lanceolate, entire, tapered to base, tip obtuse. 

Inflorescence: 1-flowered (or 2--3-flowered cyme); flowers +- exserted from leaves; bracts 2, below stem middle, 6--18 mm, erect, lanceolate, margins entire, translucent; pedicel 10--40 mm. 

Flower: sepals 2, 1/2--2/3 × corolla, widely ovate, entire to +- jagged (obscurely or irregularly toothed), tips +- acute, spreading; petals 5--10, 9--20 mm, +- obovate, white or pale-pink, tips blunt or +- pointed; stamens 6--15; stigmas 3--6. 

Fruit: 5--10 mm. 

Seed: 20--50, 1.3 mm. 

Ecology: Grassy meadows, moist gravel flats, open forest; 

Elevation: 1300--3000 m. 

Bioregional Distribution: KR, NCoRH, CaRH, SNH, TR, PR, Wrn, SNE; 

Distribution Outside California: to Washington, Rocky Mountains. 

Flowering Time: May--Aug 

Note: Hybridizes with Lewisia triphylla

Synonyms: Calandrinia nevadensis A. Gray; Claytonia grayana Kuntze; Lewisia bernardina Davidson; Lewisia pygmaea (A. Gray) B.L. Rob. var. nevadensis (A. Gray) Fosberg

eFlora Treatment Author: John M. Miller & Lauramay T. Dempster

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