Vascular Plants - Caryophyllaceae - Saponaria:
Saponaria ocymoides
Page Author: Don Knoke
rock soapwort 
Blooms: June - July
Habit: herb
Duration: perennial
Origin: Introduced from Europe
Distribution: Garden plant, occasionally escaping but rarely persistent, in the Pacific Coast states and a few states in eastern United States.
Habitat: Old gardens, waste sites and rocky places.
Species Description:

General: Rhizomatous perennial with over-wintering leafy shoots, the stems procumbent, much-branched, 5-25 cm. tall.
Leaves: Leaves opposite, the petiole 0.5-1 cm. long, not winged; blades 1-veined, spatulate to ovate-lanceolate, 0.6-2.5 cm. long and 0.3-1.4 cm. wide.
Flowers: Inflorescence a spreading, lax cyme; pedicles 2-6 mm. long; calyx united into a tube 7-12 mm. long, purple, oblong-cylindric, glandular-pubescent; petals 5, red to pink or white, 8-15 mm. long, clawed; stamens 10, attached to the petals; styles 2, filiform, 12-15 mm. long.
Fruits: Capsules cylindric to ovoid, 6-8 mm. long, opening by 4 teeth.
Accepted Name:
Saponaria ocymoides L.

Treated in Flora of the PNW as:
(not treated in H&C)
Additional Resources:

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

WTU Herbarium Specimens: View list of Saponaria ocymoides specimens in the WTU Herbarium database.

Washington Flora Checklist: Saponaria ocymoides treatment.

E-Flora BC: Saponaria ocymoides atlas page.

CalPhotos: Saponaria ocymoides images.

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

Richard Old

Richard Old
(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