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Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Tiarella trifoliata (Threeleaf foamflower)
Weyand, Phyllis

Tiarella trifoliata

Tiarella trifoliata L.

Threeleaf Foamflower, Three-leaved Foamflower, Western Foamflower

Saxifragaceae (Saxifrage Family)



USDA Native Status: L48 (N), AK (N), CAN (N)

Tiny white flowers hanging in loose clusters in narrow branched racemes atop leafy stems. Flowers: Calyx about 1/4" (6 mm) wide, with 5 lobes attached to a pale green, cup-like base about 1/16" (2 mm) long, upper lobe largest; petals 5.

There are two forms of this flower. If the leaves are cut to the top of the leafstalk, this is the variety trifoliata; if the leaves are lobed but not cut, then this is the variety unifoliata.


From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb

Bloom Information

Bloom Time: May , Jun , Jul , Aug


USA: AK , CA , ID , MT , OR , WA
Canada: BC
Native Distribution: Alaska south to central California and east to Idaho and western Montana.
Native Habitat: Moist woods, along stream banks.

Find Seed or Plants

View propagation protocol from Native Plants Network.

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Additional resources

USDA: Find Tiarella trifoliata in USDA Plants
FNA: Find Tiarella trifoliata in the Flora of North America (if available)
Google: Search Google for Tiarella trifoliata


Record Modified: 2015-09-30
Research By: TWC Staff

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