Appearance ²

Thorny shrub with curved, cane-like stems. Five to ten sharply-pointed leaflets per leaf (stem of leaflets). Clusters of white to pink flowers in May to June. Bright red rose-hips develop in August and remain on the plant through winter.

Introduction ²

Brought to the United States from Japan in 1866 as root stock for other rose plants and for erosion control and cattle “fences.”

Similar Native Plants ²

Swamp rose (Rosa palustris), but the invasive has more flowers and grows to be larger.

Impacts on Ecosystem ²

Creates dense thickets in many environments that push out native species. Especially takes over open lands.

Citations ²

https://www.nps.gov/plants/alien/fact/romu1.htm
http://www.invasivespeciesinfo.gov/plants/multiflorarose.shtml
http://se-eppc.org/manual/multirose.html

Sources and Credits

1. (c) David Shand, some rights reserved (CC BY-ND), http://www.flickr.com/photos/14508691@N08/4808282311
2. (c) gburg2016, some rights reserved (CC BY-SA)

More Info

• iNat taxon page
• African Plants - a photo guide
• Biodiversity Heritage Library
• BOLD Systems BIN search
• Calflora
• CalPhotos
• eFloras.org
• Flora Digital de Portugal
• Flora of North America (beta)
• Global Biodiversity Information Facility (GBIF)
• Go Botany
• HOSTS - a Database of the World's Lepidopteran Hostplants
• IPNI (with links to POWO, WFO, and BHL)
• Jepson eFlora
• Maryland Biodiversity Project
• NatureServe Explorer 2.0
• NBN Atlas
• New Zealand Plant Conservation Network
• OregonFlora.org
• SEINet Symbiota portals
• Tropicos
• USDA PLANTS database
• VASCAN by Canadensys
• World Flora Online
• 日本のレッドデータ検索システム
• 植物和名−学名インデックス YList

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