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Pacific silverweed
Scientific Name: Argentina egedii ssp. groenlandica
Family: Rosaceae
Category: Dicot
Growth: Forb/herb
Duration: Perennial
Other Names:
Pacific Silverweed
Pacific silverweed, known scientifically as Argentina pacifica, is also commonly referred to as silverweed cinquefoil or simply silverweed. It is sometimes classified as Potentilla anserina ssp. pacifica or as P. egedii.
Considerations for Pets
- This is a low-growing plant.
- It spreads by runners.
Considerations for Children
- This is a low-growing plant.
- It spreads by runners.
Taxonomy and Nomenclature
- Scientific Name: Argentina pacifica
- Synonyms: Potentilla anserina ssp. pacifica, Potentilla pacifica, Potentilla egedii var. grandis, P. egedii, Argentina anserina
- Family: Rosaceae (Rose Family)
- Taxonomic Rank: Subspecies (e.g., Potentilla anserina ssp. pacifica)
Distribution and Habitat
- Pacific silverweed grows along the Pacific Coast from Alaska to southern California.
- It is found in marshes, tidal flats, and near the ocean, including sandy beaches and beach dunes.
- It thrives in saline wetlands.
Morphological Characteristics
- It is a low-growing perennial, typically reaching about 6 inches in height.
- Leaves are pinnately compound, with silvery undersides.
- The plant spreads by runners.
- Leaves can grow up to 15 inches long.
- Petioles are nearly hairless and upright to spreading.
Ethnobotanical Information
- Pacific silverweed roots were a staple food for Northwest Coast Indian peoples, eaten raw, boiled, or roasted.
- It is one of two important "root" foods, along with Springbank clover, used by native groups of British Columbia.
Interactions with Other Organisms
- It can be found competing with Gorse.
Further Information
- UCSC Natural Reserves
- The Watershed Nursery (www.thewatershednursery.com)
- CalPhotos
- Discover Life