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Montana Field Guide

Montana Field Guides

Bouncing-bet - Saponaria officinalis
Other Names:  Common Soapwort, Soapweed, Crow Soap

Non-native Species

Global Rank: GNR
State Rank: SNA
C-value: 0

Agency Status


External Links

General Description
Rhizomatous perennial with glabrous foliage. Stems simple, to 60 cm. Leaves lanceolate to obovate, 3–8 cm long, short-petiolate or sessile. Inflorescence a terminal, branched, bracteate, many-flowered, open to congested cyme. Flowers: calyx 15–20 mm long, united into a veiny tube below and short, triangular lobes above; petals clawed, white to pinkish; the blade 8–15 mm long with erose to entire margins and 2 small adaxial scales; stamens 10; styles 2. Capsule ovoid-cylindric,15–20 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range


Range Comments
Introduced to most of temperate North America; an escaped garden ornamental native to Europe (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 25

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)



  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
  • Web Search Engines for Articles on "Bouncing-bet"
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Citation for data on this website:
Bouncing-bet — Saponaria officinalis.  Montana Field Guide.  .  Retrieved on , from