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Home > Landscaping > Native Plants for Western Washington Gardens and Restoration Projects



Geum macrophyllum

Large-leaved Avens

Flowering Period: May, Jun May June
Flower color: yellow
Mostly sunny Partial sun
Wet soil Moist soil


At a Glance: Hairy perennial with short rhizomes and big leaves topped by small yellow flowers.

Height: Up to 3 feet (1 meters).
Growth Form: Herb.
Stems: Hairy.
Leaves: Basal leaves long stalked, with heart to kidney shaped terminal segments many times larger that the several leaflets below; stem leaves few, stalkless or nearly so, deeply 3 lobed or 3 parted; color: light green.
Flowers: Saucer-shaped, petals to 6mm long, single or in a few-flowered cluster at the tips of the branches; primary color: bright-yellow.
Flowering Period: May, June.
Fruits: Clusters of short hairy achenes that have elongate styles with an "S" shape at the tip, cling to any rough surface like fur or clothing; size: 1 cm diameter; color: green-brown.

Geum macrophyllum
Photo © 2003, Starflower Foundation
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Sun/Shade Tolerance Hydrology Elevation Range
full sun > 80%
mostly sunny 60%-80%
partial sun and shade 40%- 60%
mostly shady 60%-80%
full shade > 80%

wet
moist
dry

Wetland Indicator Status:
FACW (facultative wetland)
low elevation
mid elevation
sub-alpine
high elevation


Soil Preferences
(data not available)

Habitat Preferences
Aquatic and Wetland:
Ponds or lakes
Shallow pools
Sloughs
Swales or wet ditches
Seasonally inundated areas
Marshes or swamps
Aquatic bed wetlands
Emergent wetlands
Scrub-shrub wetlands
Forested wetlands
Bogs, fens
Seeps, springs
Shorelines and Riparian:
Lake shores
Bog margins
Streams or rivers
Stream or river banks
Riparian corridors
River bars
Floodplains
Bottomlands
Alluvial areas
Saltwater Areas:
In or near saltwater
Mud flats
Tidal areas
Estuaries
Saltmarshes
Brackish water
Seashores
Coastal dunes or beaches
Rocky or Gravelly Areas:
Coastal bluffs
Cliffs
Rocky slopes
Outcrops
Crevices
Glacial outwash
Gullies
Slide areas
Sub-alpine and Alpine:
Heaths
Snow beds
Tundra
Avalanche tracks
Forests and Thickets:
Forests and woods
Open forests
Coniferous forests
Old growth forests
Deciduous forests
Mixed forests
Nurse logs
Forest edges, openings, or clearings
Thickets
Meadows and Fields:
Pastures or fields
Meadows or grassy areas
Mossy areas
Disturbed Areas:
Roadsides
Trailsides
Logged sites
Burned areas
Disturbed sites


Wildlife Value
(data not available)

Ethnobotanical Uses and Other Facts
Medicinal Uses: The Nuxalk made tea with the roots for stomach pain. The leaves were poulticed on boils by the Nuxalk, Quileute, Snohomish and Quinault. The Quileute and the Klallam chewed the leaves during labor, because these plants appeared at the same time that seals gave birth to their pups. The S. Vancouver Island Salish ate the leaves before visiting a dying person to guard against germs. Chehalis women made tea from the leaves to avoid conception, this only worked after the woman had given birth. Cowichan men chewed the leaves and fed them to their wives when they were pregnant to "straighten the womb" and aid delivery. The Squamish used the leaves to make a diuretic tea. An eyewash was also prepared from the leaves. The Haida boiled the roots to make a steambath to treat rheumatism.
Food Uses: Roots were used for flavoring stews and fish.
Name Info: "Macrophyllum" means big leaf, matching the common name nicely.


Suggested References



The landscaping and restoration information provided on this page is taken from the Starflower Foundation Image Herbarium. All photographs © Starflower Foundation unless otherwise noted.