This was really an ID that needed a hand lens.

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

125

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

120

Cistanthe tweedyi (formerly Lewisia tweedyi )

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

116

Eriogonum umbellatum I think
biology.burke.washington.edu/herbarium/imagecollection.ph...

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

103

Clematis occidentalis

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

101

Lewisia rediviva (Bitterroot) on Tronsen Ridge
Portulacaceae
bitter-root
Lewisia rediviva Pursh on USDA Plants Profile
Lewisia rediviva Pursh on wikipedia
Lewisia rediviva Pursh at Burke Museum, University of Washington

Tronsen Ridge
Wenatchee National Forest, Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

092

Penstemon confertus
yellow penstemon, lesser yellow beardtongue

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

087

Cistanthe tweedyi (formerly Lewisia tweedyi )

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

085

Cymopterus terebinthinus

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

075

Eriogonum ovalifoliumvar. nivale

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

074

Delphinium glareosum , Olympic Larkspur

Delphinium tend to growy on sunny rock slide sort of slopes.

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

069

Draba paysonii

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

064

Eriogonum strictum (Blue Mountain buckwheat )
Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

056

Phacelia sericea
silky phacelia
USDA Plants Profile
Info from NARGS

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

052

Erigeron compositus
cutleaf daisy, trifid mountain fleabane

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

043

Ivesia tweedyi
Tweedy's ivesia, Tweedy's mousetail

Tronsen Ridge
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1800 m (5900) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

039

biology.burke.washington.edu/herbarium/imagecollection.ph...

Mount Lillian Trail 1601, Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1700 m (5600) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

022

Lewisia triphylla
The only Lewisia without a basal rosette according to Wildflowers of the Pacific Northwest
by Turner and Gusafson

In the Montiaceae (formerly Portulacaceae) family

Wet area just off Mount Lillian Trail 1601
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1700 m (5600) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

018

Cistanthe tweedyi (formerly Lewisia tweedyi ) growing in a natural rock garden

Mount Lillian Trail 1601
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1700 m (5600) feet

en.wikipedia.org/wiki/Cistanthe_tweedyi

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

016

Balsamorhiza sagittata
(arrowleaf balsamroot)

Mount Lillian Trail 1601
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1670 m (5500) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

007

Forest Road 9716
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1500 m (4900) feet

en.wikipedia.org/wiki/Cistanthe_tweedyi

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

002

Castilleja thompsonii

near Mount Lillian Trail 1601
Wenatchee National Forest
Chelan County, Washington, USA
Elevation about 1700 m (5600) feet

Northwestern Chapter of the. North American Rock Garden Society field trip to Tronsen Ridge

Chelan County (Washington State, USA) 4 July 2010.

Sources for identification: The Butterflies of Cascadia (Pyle, 2002, pp.112-3), Butterflies of America at butterfliesofamerica.com/parnassius_smintheus_magnus.htm and The Butterflies and Moths of North America at www.butterfliesandmoths.org/species?l=1346 .

This taxonomy is verified at the Inetgrated Taxonomy Information Service at www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN... .

Common name: Rocky Mountain Parnassian, Mountain Parnassian.

Bob Pyle writes: "Parnassians are frequent companions of hikers in the mountains and forests. Clodius earlier and lower, Smintheus higher and later...Smintheus flies in colder places and temperatures than most butterflies, sometimes in falling snow."