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Geum rossii subspecies turbinatum

Geum rossii

Geum rossii subspecies turbinatum
Geum rossii subspecies turbinatum. Synonym: Acomastylis rossii.  (Alpine Avens)
Rosaceae (Rose Family)

Subalpine, alpine. Meadows. Summer.
Above: Lizard Head Trail, June 27, 2007 and Lake Hope Trail, August 11, 2014.
Left: Lizard Head Trail, July 3, 2004.

Alpine Avens is often found in huge colonies, especially near tree line and on tundra.  Its finely cut shiny leaves, maroon buds (at two and seven o'clock and center), and very bright shiny yellow flowers make it a handsome and noticeable plant.  Its leaves are often four-to-eight inches long below tree-line but are barely an inch or two long on Alpine Tundra. 

Because of its shiny yellow flower petals, Geum rossii is often mistaken for a Buttercup

The Geum genus name was given by Linnaeus in 1753, and the species was named Sieversia rossii in 1823, Geum rossii in 1825, and then Acomastylis rossii in 1906. 

"Geum" is a Latinized version of an ancient Greek word, perhaps "geus" (or "geuo"), meaning, "to give flavor" as some plants given this name were commonly used for flavoring.

The specific epithet is for the Arctic explorer, Captain James Ross (of the Ross Ice Shelf fame), who collected the first specimen of this plant for science on Melville Island in 1820 when he accompanied W. E. Parry to the Northwest Territories of Canada. (More biographical information about Ross.)

Geum rossii subspecies turbinatum
Geum rossii subspecies turbinatum. Synonym: Acomastylis rossii.  (Alpine Avens)
Rosaceae (Rose Family)

Subalpine, alpine. Meadows. Summer.
Madden Peak, June 23, 2004.

Extensive patches of Geum rossii are common.

Geum rossii subspecies turbinatum
Geum rossii subspecies turbinatum. Synonym: Acomastylis rossii.  (Alpine Avens)
Rosaceae (Rose Family)

Subalpine, alpine. Meadows. Summer.
Shoulder of Helmet Peak, August 18, 2005.

Geum rossii subspecies turbinatum
Geum rossii subspecies turbinatum. Synonym: Acomastylis rossii.  (Alpine Avens)
Rosaceae (Rose Family)

Subalpine, alpine. Meadows. Summer.
Shoulder of Helmet Peak, August 18, 2005.

Geum rossii leaves turn a warm, shiny maroon in the fall and often blanket many acres of cool woods and tundra with a deep glow.

Range map © John Kartesz,
Floristic Synthesis of North America

State Color KeySpecies present in state and native
Species present in state and exotic
Species not present in state

County Color Key

Species present and not rare
Species present and rare
Species extirpated (historic)
Species extinct
Species noxious
Species exotic and present
Native species, but adventive in state
Eradicated
Questionable presence

Range map for Geum rossii