Vascular Plants - Caryophyllaceae - Silene:
Silene acaulis
moss campion 
Blooms: June - August
Habit: herb
Duration: perennial
Origin: Native
Distribution: Alaska to Oregon, and south in the Rocky Mountains to Arizona
Habitat: Rock crevices and talus slopes at high elevations in the mountains
Species Description:

General: Cushion-like perennial from a woody root and branched crown, forming dense mats up to 3 dm. broad; flowering stems 3-6 cm. tall.
Leaves: Leaves mostly basal, staying attached for many years, linear to linear-lanceolate, sessile, 4-10 mm. long, glabrous or scabrous.
Flowers: Flowers single, from nearly sessile or with peduncles up to 4 cm. long, usually dioecious; calyx tubular, 5-lobed, 3-10 mm. long, pinkish; petals 5, pink to lavender, 8-12 mm. long, the claw about twice as long as the blade; blade appendages 2, very small or lacking; stamens 10; styles 3.
Fruits: Capsule 3-celled, opening by 6 teeth.
Accepted Name:
Silene acaulis (L.) Jacq.
Synonyms:
Cucubalus acaulis L.
Silene acaulis Linnaeus) Jacquin ssp. exscapa (Allioni) de Candolle
Silene exscapa Allioni
Xamilensis acaulis (L.) Tzvelev

Treated in Flora of the PNW as:
Silene acaulis
Additional Resources:

PNW Herbaria Specimens: View list of all Silene acaulis specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Silene acaulis specimens in the WTU Herbarium database.

Washington Flora Checklist: Silene acaulis treatment.

E-Flora BC: Silene acaulis atlas page.

CalPhotos: Silene acaulis images.

USDA Plants Database: Silene acaulis.
Additional photographs of Silene acaulis:
(click on a thumbnail to view larger photo)

Ben Legler, 2004

Ben Legler, 2004

Jim Riley

Jim Riley

Dana Visalli

Dana Visalli

Bud Kovalchik

Bud Kovalchik

Bud Kovalchik

Tim Hagan, 2004

Douglas Houck, 2009

Rod Gilbert, 2008

Rod Gilbert, 2007

Rod Gilbert, 2007

Craig Althen, 2012

Ray Izumi, 2010

Ray Izumi, 2010

Gary Brill, 2006

Gary Brill, 2014

Susan McDougall, 2014

Susan McDougall, 2014

Gary Brill, 2015

Gary Brill, 2015

Richard Ramsden, 2016

Richard Ramsden, 2016

Richard Ramsden, 2017

Craig Althen, 2012

Craig Althen, 2012
(password required)

Burke Museum


©2018 Burke Museum of Natural History and Culture.
All Rights Reserved. Box 353010, University of Washington,
Seattle, WA 98195-3010, Phone: 206-543-5590.
On the UW campus at 17th Avenue NE and NE 45th Street.
Washington Native Plant Society
WA Native Plant Society