Home Rosaceae Rubus Rubus spectabilis (salmonberry)

spectabilis – sightly (Latin), as in remarkable or showy, probably referring to the flowers

Native range: W. North America

Rubus spectabilis 4 RF

Leaves:

  • alternate
  • ternately compound Terminal leaflet stalked and largest
  • lower leaflets pinched together suggest butterfly shape
  • doubly serrate

Rubus spectabilis 1582

Flowers:

  • solitary
  • pink, purplish red
  • delicate
  • nodding
  • many pistils

Rubus spectabilis 39139

Fruit:

  • aggregate of drupelets
  • ranging in color from yellow to red
  • “Salmon berry” color ranges from salmon-colored to pink when ripe

Rubus spectabilis 9613

Other characteristics:

  • rhizomatous shrub (may be considered aggressive by gardeners and foresters)
  • deciduous
  • peeling bark on older stems, slender thorns on younger

Relevant info:

  • important food for Native Americans and First Nations, though mushier and less sweet than other native berries

Ecology & Adaptations:

  • crest in Washington, Alaska south to California, east to Idaho.
  • found in lowland moist woods and swamps to mid- elevations in the mountains
  • often abundant along stream edges and avalanche tracks, as well as on river terraces, gravel bars and in forest openings
  • often forming dense, clonal thickets via rhizomes
  • vegetative reproduction:
    • via rhizomes and layering
    • can spread as downward arching aerial canes become buried by litter, subsequently root, and produce new aerial shoots
  • pollination:
    • by hummingbirds
    • flower nectar provides food for pollinators, such as bees and other insects, as well as rufous hummingbird.
  • seed dispersal:
    • consumption by birds and large mammals, especially, disperse seeds after exposing them to acids that weaken seed coat and aid water absorption and germination
    • long period of fruiting (2 months) increases chances of seed dispersal by animals
  • wildlife:
    • food and cover for birds and mammals
    • leaves and young shoots are eaten by deer, elk, mountain goats, moose
    • stem, foliage, cambium, and bark eaten by rabbits, porcupine, and beaver
    • fruit eaten by coyote, black bear, grizzly bear, and many smaller mammals, as well as a variety of birds, including the ruffed grouse, northern bobwhite, and various thrushes and towhees
    • seeds consumed by mice and other small rodents
  • succession – responds rapidly to disturbance, establishing as a pioneer species and spreads via rhizomes
  • tolerates low-oxygen conditions – vegetative reproduction through rhizomes enables species to spread in low-oxygen conditions of wetlands
  • resistant to fire:
    • following fire, re-sprouts vigorously from the stump, root crown, stem base or root stock, and from a dense network of rhizomes below ground
    • seeds remain viable in soil for years and germinate in large numbers after fire
  • shade tolerant – vegetative reproduction maintains colonies in shaded forest understory
  • develops on nitrogen-rich soils