Argentina egedei

Argentina egedei
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Argentina
Species:
A. egedei
Binomial name
Argentina egedei
Synonyms

Argentina anserina subsp. egedei
Potentilla anserina subsp. egedei
Potentilla egedei

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.

Description

Eged's silverweed is a low-growing herbaceous plant with creeping red stolons up to 80 centimetres (31 in) long. The leaves are 10–40 cm (4–15+12 in) long, evenly pinnate into in crenate leaflets 3–5 cm (1+14–2 in) 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.[citation needed]

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.

Taxonomy

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.[citation needed]

Distribution and habitat

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.[citation needed]

References

  1. ^ "The International Plant Names Index". Retrieved 4 February 2015.