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Bransford, W.D. and Dolphia
Maianthemum dilatatum (Alph. Wood) A. Nelson & J.F. Macbr.
False lily of the valley, Canada Mayflower
Synonym(s): Maianthemum bifolium ssp. kamtschaticum, Maianthemum bifolium var. kamtschaticum, Maianthemum kamtschaticum
USDA Symbol: madi
An erect stalk, 2-4 in. high, bears two broad, glossy-green, heart-shaped leaves and a terminal, spiky cluster of tiny, white flowers. Subsequent berries are red. Since each stalk comes from an extensive, horizontal, underground root system, a single plant can, in time, produce hundreds of above-ground triads – two leaves and a flower cluster. Grows in the low patches and has slender racemes of tiny white flowers held stiffly erect just above heart-shaped leaves.
The genus name, from the Greek maios (May) and anthemon (flower), refers to time of flowering. This plant, which spreads by underground roots, makes an attractive ground cover in woodland gardens.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf Complexity: Simple Fruit:
Red Size Class:
Bloom InformationBloom Color: White
Bloom Time: May , Jun , Jul
, WA Canada: BC Native Distribution: AK,
s. along the coast to Marin Co., CA
& e. to n. ID Native Habitat:
Moist, shaded stream banks & woods
Growing ConditionsLight Requirement: Shade
Soil Moisture: Moist , Wet
Soil pH: Acidic (pH<6.8)
Soil Description: Moist soils.
Conditions Comments: An extremely aggressive ground cover that should be used with caution as it seems happiest when invading areas where it is not wanted. Will grow in nutrient poor sites.
BenefitConspicuous Flowers: yes
Propagate by rhizome
division or seed. Plant seeds fresh (when berries turn red) in late summer Seed Collection:
Not Available Seed Treatment:
Not Available Commercially Avail:
National Wetland Indicator Status
|Status:|| FAC || FAC || FAC |
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.
From the National Suppliers Directory
According to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Oregon Native Plant Nursery
- Woodburn, OR
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:
Native Seed Network
- Corvallis, OR
Record Last Modified: 2008-12-17
Research By: TWC Staff