Geum glaciale : Glacier Aven

Taxonomy

Scientific Name:

Kingdom: Plantae

Division:

Class: Dicoteldonae (two seed-leaves)

Family: Rosaceae (Rose Family)

Genera: Geum (Avens) (Lat. Ancient latin name for these plants several origins have been suggested.)

Species: glaciale (Glacier)

English Name(s):

Glacier Aven,

First Nation Names:



Description

Structure:

Leaves:

  • Pinnately divided with 5-7 pairs of entire (not lobed) to subentire leaflets.
  • Mainly basal (from base).
  • Petioles (stalks) short, densely villous (fury) from soft yellowish white hairs.
  • Upper surface glabrous (hairless) underside densely villous from soft yellowish white hairs.

Reproductive Parts:

  • Flower solitary 3-4cm in diamter, atop a leafy, densely villous, stem.
  • Sepals 5 alternating with small sepal-like bracts.
  • Bracts linear (narrow), shorter than sepal lobes.
  • Petals 5-8, yellow, oval in shape, 1.5-2.0cm long.
  • Stamens (male parts) numerous.
  • Pistils (female parts) numerous, 1-cavitied.
  • Styles long, sharply curved or hooked, feathery and persistent (not falling off) on fruit.

Seed:

  • Fruit is a seed-like achene (nutlet), with short stiff hairs, born on a dry, cone-shaped receptacle.
  • Achenes with 2-3cm long, plumose (feathery) styles.

Not to Be Confused With:

  • The other Geums (Avens). Geum macrophyllum (Large-leaf Aven) can be distinguished by the large terminal lobes on its leaves. Geum rossii (Ross's Aven) can be distinguished by its hairless leaves and stem and smaller flowers.

Biology

Physiology:

Life Cycle:

Seasonal Cycle:

  • Plants deciduous (dieing back) from rhizomes (rootstalk).
  • Flowers appear soon after snowmelt.

Ecology

Animal Uses:

Habitat:

  • Stony alpine slopes or dry heath.

Uses

Modern:

Industrial:

Medicinal:

  • 1tbsp of chopped roots boiled in 250ml milk or water maked a tea taken for dysentry. 500-750ml in a day sipped over several hours is usually needed.
  • 2tbsp boiled for 20 minutes in 1 liter of water and drunk in small dosses for 2-3 days is said to be good for uterine bleeding, excessive menstral bleeding, and middle of the month spotting.
  • 5ml of dried plant material boiled in 250ml water makes a tea that is drunk between meals to relieve inflamation and irritability of the stomach lining.

Food:

    Traditional Gwich'in:

    Folklore:

      Industrial:

        Medicinal:

          Food:

            Traditional Other:

            Folklore:

            • When kept in the house Avens are thought to render the devil powerless there.

            Industrial:

              Medicinal:

              • In England roots were marinated in wine and eaten as a remedy for heart trouble.
              • Roots were sometimes mixed in ale as a stomach medicine.

              Food:

                Images


                Range Maps

                World Range: Amphi-beringian, arctic-alpine; in AK, YT and barely into NWT in the Richradson and Mackenzie Mountains.

                Prov/State Abrev. List


                In Yukon: South to about 63N.

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