Argentina egedei, known as Eged's silverweed, is a flowering perennial plant in the rose family, Rosaceae. It is also sometimes called "Pacific silverweed", though this usually (and more precisely) refers to A. pacifica.
Eged's silverweed is a low-growing herbaceous plant with creeping red stolons up to long. The leaves are NaNcm (-2,147,483,648inches) long, evenly pinnate into in crenate leaflets NaNcm (-2,147,483,648inches) long and 2 cm broad, thinly covered with a few silky white trichomes (called hairs). The sparsity of the hairs is a useful distinction from A. anserina, which is more densely hairy.
The flowers are produced singly on 5–15 cm long stems, 2–3.5 cm diameter with five yellow petals. The fruit is a cluster of dry achenes.
It was formerly classified in the genus Potentilla as Potentilla egedei. It is considered a member of the Argentina anserina species aggregate, or is alternatively treated as a subspecies of A. anserina by some botanists.
It is a halophyte native to Arctic and cool temperate coasts of the Northern Hemisphere, most commonly growing in salt marshes. The southern limits of the range are California and Long Island, New York in North America, and the Baltic Sea and coastal eastern Siberia in Eurasia.