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Bransford, W.D. and Dolphia
Tiarella trifoliata var. unifoliata
Tiarella trifoliata L. var. unifoliata (Hook.) Kurtz
Oneleaf foamflower, Sugar scoop, Western foamflower
Synonym(s): Tiarella trifoliata ssp. unifoliata, Tiarella unifoliata
USDA Symbol: TITRU
Western foamflower is a colony-forming perennial that forms short rosettes of deep-green, rounded, toothed leaves. The leafy flowering stalk, usually 6-8 in. high, carries horizontal to nodding, cup-shaped, white flowers followed by curious fruits which look like old-fashioned sugar scoops. Leaves remain evergreen through the year.
Plant CharacteristicsDuration: Perennial Habit: Herb Flower:
Fruit: Size Class:
Bloom InformationBloom Color: White
Bloom Time: May , Jun , Jul
, WA Canada: BC Native Distribution: CA
Coast Ranges to s. AK,
w. to s.w. Alt. & w. MT Native Habitat:
Shaded north slopes below 2000 ft.
Growing ConditionsLight Requirement: Shade
Soil Description: Cool, damp (in summer) soils.
Conditions Comments: Not Available
PropagationDescription: Not Available
Seed Collection: Not Available
Seed Treatment: Not Available
Commercially Avail: yes
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Santa Barbara Botanic Garden
- Santa Barbara, CA
Record Last Modified: 2007-01-01
Research By: TWC Staff