Fauna
Plant

Cluster Rose

Rosa pisocarpa

Also known as Swamp Rose, Pea Fruit Rose

Cluster rose forms dense, tangled thickets along Pacific Northwest streams and wetland margins, providing vital cover for nesting songbirds and small mammals. Fragrant pink blossoms open in small clusters throughout early summer, giving way to bright egg-shaped hips that persist into winter as foliage turns brilliant yellow and red. Straight paired prickles situated at the stem nodes help anchor branches while deterring larger browsing mammals.

FloweringPacific NorthwestThicket-Forming
Cluster Rose reference
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—observations
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—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & preyAutotrophic (Photosynthesis)
Predators
  • Mule Deer
  • Black Bears
  • Cedar Waxwings
ThreatsHabitat loss, wetland drainage, and invasive weed competition
HabitatsStreambanks, wet meadows, marsh margins, and moist open woodlands
Life span20–50+ years
Classification
  1. OrderRosales
  2. FamilyRosaceae
  3. GenusRosa
  4. SpeciesRosa pisocarpa
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Wild fruits and berries have toxic look-alikes; never eat based on app identification alone.
Responsible observation
  • Identification: Look for pairs of straight prickles directly below the stem nodes to separate it from look-alikes.
  • Habitat Spotting: Search moist streambanks and marsh borders during early summer for pink floral clusters.
Related species
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