The BioFiles - Bill Hubick

Pacific Silverweed (Argentina pacifica)

Source: Wikipedia

Argentina pacifica
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Argentina
Species:
A. pacifica
Binomial name
Argentina pacifica
Synonyms
  • Potentilla pacifica Howell
  • Potentilla anserina subsp. pacifica (Howell) Rousi

Argentina pacifica, sometimes called pacific silverweed,[1] silverweed cinquefoil,[2] or simply silverweed,[3] is a low-growing perennial plant with pinnate leaves and yellow flowers. The edible roots were valued by indigenous peoples of the Pacific Northwest Coast.

Description

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It is a low-growing (15 cm or 6 in) perennial plant. It has pinnately compound green leaves with silvery undersides. The yellow, saucer-shaped flowers appear from late spring through summer.

Taxonomy

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The plant is a member of the species aggregate known as Argentina anserina or Potentilla anserina.[4]

Distribution and habitat

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Pacific silverweed spreads very quickly in moist areas. Preferring salt marshes, river estuaries and shorelines, they are often seen growing alongside springbank clover.[5] They need sun and regular water.

Uses

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Pacific silverweed is important in Pacific Northwest coastal indigenous cultures. Indigenous people dig for its edible roots. As an important vegetable, families maintained rights to access patches through potlatch.[6] New plants can grow from small root fragments, and with some attention families could guarantee patches persisted for generations, perhaps over thousands of years.[7] Northwest Coast peoples used to dig them in spring with yew-wood shovels before pit-cooking them or boiling them with eulachon grease. Cooked roots have a slightly bitter sweet-potato flavour. Northwest Coast peoples also washed them or mashed them into cakes and dried them for winter.[5]

References

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  1. ^ Chuck Kozak (1999). "An incomplete and ever-evolving catalogue of native plants of Montara Mountains". Retrieved 4 February 2015.
  2. ^ Paul Slichter. "Cinquefoils West of the Cascade Mountains of Oregon and Washington". Retrieved 4 February 2015.
  3. ^ "Washington Native Plant Society". Retrieved 4 February 2015.
  4. ^ Arne Rousi (1965). "Biosystematic studies on the species aggregate Potentilla anserina L.". Annales Botanici Fennici. 2 (1): 47–112. JSTOR 23724290.
  5. ^ a b Turner, Nancy (2004). Plants of Haida Gwaii (Second ed.). Winlaw BC: SONO NIS PRESS. pp. 140–141. ISBN 1-55039-176-3.
  6. ^ Turner, Nancy (9 January 2017). ""Expert Opinion of Dr Nancy J. Turner"". Nancy Turner.
  7. ^ Deur, Douglas (2005). Keeping it Living: Traditions of Plant Use and Cultivation on the Northwest Coast of North America. Seattle, Washington: University of Washington Press. ISBN 0774812672.