Home Ericaceae Arctostaphylos Arctostaphylos uva-ursi (kinnikinick, common bearberry)

uva – grape (Latin)

ursi – bear (Latin)

Native range: North Eurasia, North America

Arctostaphylos uva-ursi 25924

Leaves:

  • alternate
  • simple
  • entire
  • obtuse
  • slightly revolute (rolled backwards)
  • glabrous (smooth/no pubescence)
  • 0.5-0.75” long

Arctostaphylos uva-ursi leaves

Flowers:

  • inflorescence – cluster on short stalks (terminal racemes)
  • flowers small, nodding, pendulous
  • 5 petals, fused, urn shaped
  • pink & white
  • 8–10 stamen

Arctostaphylos uva-ursi inflorescence

Arctostaphylos uva-ursi inflorescence underside

Fruit:

  • berry
  • small (1/3–1/2”)
  • red

Common bearberry ("Kinnikinnick", Arctostaphylos uva-ursi) - fruits and leaves

Other characteristics:

  • red stems
  • prostrate shrub
  • evergreen

Relevant info:

  • sunny areas, drought tolerant
  • “kinnikinnick” – Algonquin word meaning smoking mixture
    • Native Americans and later early pioneers smoked dried leaves (alone or mixed with other leaves, tobacco, and/or the dry inner bark of red osier dogwood) in pipes
  • Meriwether Lewis described fruits in 1806 to be “tasteless and insipid”
  • example cultivars:
    • ‘Massachusetts’ from seed collected in Massachusetts
    • ‘Vancouver Jade’ from Victoria, BC

Ecology & Adaptations:

  • Alaska south to CA and New Mexico, east to the Atlantic Coast; circumboreal
  • Coastal bluffs and prairies, rocky balds, dry subalpine meadows, and dry coniferous forest
  • nectar in flowers attracts pollinators (hummingbirds, bees, thrips)
  • mycorrhizal associations aid drought and low nutrient tolerance
  • leathery leaves last, which helps conserve nutrients in nutrient-poor soils
  • fire tolerant – latent buds on the horizontal stems and dormant buds on the stem base or root crown that allow sprouting of surviving plants or root stems after fire; hard-coated seeds persist in the seedback and help population recover after fire
  • fruits resistant to bacteria and fungi but attract animals, which aid in seed dispersal