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Salmonberry - Invasive Weed Species Information

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in salmonberries is layering, where a portion of the stem makes contact with soil and begins to grow roots. Buds located near the bottom of the stem or the top of the roots may also regenerate a plant after severe damage.


Salmonberries also go through sexual reproduction which begins with the process of pollination by an insect, bird, or other pollinators

Salmonberry - Rubus spectabilis Flower
Salmonberry - Rubus spectabilis Leaves

Reproduction: Salmonberries are capable of reproducing both 

sexually and asexually. One method of asexual reproduction

Salmonberry Flower

Salmonberry Leaves

Native to Northern America, Salmonberry is a shrub growing to 1–4 metres tall, with perennial, not biennial woody stems that are covered with fine prickles. The leaves are trifoliate (with three leaflets), 7–22 cm long, the terminal leaflet larger than the two side leaflets. Leaf margins are toothed.


Flowers are 2–3 cm in diameter, with five pinkish-purple petals; they are produced from early spring to early summer. The berries ripen from early May to late July  (later in cooler climates), and resembles a large glossy yellow to orange-red raspberry 1.5–2 cm long with many drupelets.

Salmonberries are found in moist forests and stream margins, especially in coastal forests. In open areas they often form large thickets, and thrive in the open spaces under stands of red alder (Alnus rubra).

How To Identify Salmonberry?

Leaf: Large green trifoliate, toothed leaf

Flower: Pinkish-purple petals

Stem: Woody and covered with fine prickles

Salmonberry Leaves, Flower and Fruit
Salmonberry - Rubus spectabilis Berry Fruit

Salmonberry Leaves, Flower and Fruit

Salmonberry - Rubus spectabilis ID Guide

Salmonberry - Rubus spectabilis ID Guide V4.gif

Why Is Salmonberry A Problem?

Salmonberry is an important component of the ecosystem in its native habitat, it provides food for a number of mammals, birds and invertebrates.


However, it forms dense stands that exclude other vegetation, it can invade grassland and the shrub layer of woodland, and compete with conifer seedlings in regenerating woodland.

What Is Salmonberry - (Rubus spectabilis)?

Habitat: Terrestrial, prefers wet / damp soil
Distribution in Ireland: Sparse distribution but locally abundant in some places.

Status: Established
Family name: Rosaceae

European Communities (Birds and Natural Habitats) Regulations 2011 non-native invasive plant species A-Z (Updated 2017)

There are currently 35 invasive plant species listed in the European Communities (Birds and Natural Habitats) Regulations (annex 2, Part 1)...


Click on a species from the following list to find out more regarding non-native species subject to restrictions under Regulations 49 and 50.

  1. American Skunk-CabbageLysichiton americanus

  2. Brazilian Giant-RhubarbGunnera manicata

  3. Broad-Leaved RushJuncus planifolius

  4. Cape PondweedAponogeton distachyos

  5. Cord-GrassesSpartina (all species and hybrids)

  6. Curly Waterweed - Lagarosiphon major

  7. Dwarf Eel-GrassZostera japonica

  8. FanwortCabomba caroliniana

  9. Floating PennywortHydrocotyle ranunculoides

  10. Fringed Water-LilyNymphoides peltata

  11. Giant HogweedHeracleum mantegazzianum

  12. Giant KnotweedFallopia sachalinensis

  13. Giant-RhubarbGunnera tinctoria

  14. Giant SalviniaSalvinia molesta

  15. Himalayan BalsamImpatiens glandulifera

  16. Himalayan KnotweedPersicaria wallichii

  17. Hottentot-FigCarpobrotus edulis

  18. Japanese KnotweedFallopia japonica

  19. Large-Flowered WaterweedEgeria densa

  20. Mile-a-Minute WeedPersicaria perfoliata

  21. New Zealand PigmyweedCrassula helmsii

  22. Parrots FeatherMyriophyllum aquaticum

  23. Red AlgaGrateloupia doryphora

  24. RhododendronRhododendron ponticum

  25. SalmonberryRubus spectabilis

  26. Sea-Buckthorn Hippophae rhamnoides

  27. Spanish Bluebell Hyacinthoides hispanica

  28. Three-Cornered LeekAllium triquetrum

  29. WakameUndaria pinnatifida

  30. Water ChestnutTrapa natans

  31. Water FernAzolla filiculoides

  32. Water LettucePistia stratiotes

  33. Water-PrimroseLudwigia (all species)

  34. WaterweedsElodea (all species)

  35. WireweedSargassum muticum

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