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Japanese rose – Rosa rugosa
Terhi Ryttäri, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Johanna Kolehmainen, Creative Commons Attribution Noncommercial Share-Alike 4.0
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Japanese rose – Rosa rugosa
Johanna Kolehmainen, Creative Commons Attribution Noncommercial Share-Alike 4.0
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Japanese rose – Rosa rugosa
Johanna Kolehmainen, Creative Commons Attribution Noncommercial Share-Alike 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Jouko Rikkinen, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Terhi Ryttäri, Creative Commons Attribution Noncommercial 4.0
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Japanese rose – Rosa rugosa
Terhi Ryttäri, Creative Commons Attribution Noncommercial 4.0
Japanese rose
(fi: kurtturuusu, sv: vresros)
Rosa rugosa
Distribution in Finland
Resident, invasive alien species that has escaped from cultivation. Becomes rarer towards north, rare in Lapland.
Origin and general distribution
Northeastern Asia.
Growing form
A deciduous shrub that forms extensive stands via root sprouts.
Size
30–120 cm high.
Stem
The leaf arrangement is spiral. The leaves are stipulate. The lamina is imparipinnate with 5–9 leaflets. The leaflets are thick, rugose, densely pubescent beneath and serrate.
Leaf
The flowers are bisexual and solitary, paired or in groups of three. The pedicel is covered with glandular hairs. The sepals are entire, covered with glandular hairs, erect and persistent after flowering. The corolla is 6–10 cm wide, typically with five petals and red or white.
Root
The stem is lignified and branched. The branches are stout and ascending – erect. The stem and branches are densely pubescent and densely prickly. The prickles are straight and the size varies.
Flower
Flowers from midsummer to early autumn (VI–IX).
Fruit and seed
The heps (2–2.5 cm) are turnip-shaped, glabrous and red.
Habitat
Roadsides, ruderal waste grounds, sandy and stony sea shores, used as an ornamental shrub.
Additional information
Invasive alien species.
Organism groups
Endangered status in Finland
ENDANGERED CATEGORY (International Union for Conservation of Nature (IUCN) classification)
CR Critically endangered
EN Endangered
VU Endangered
NT Near threatened
LC Least concern
2019 NA - not applicable
2010 NA - not applicable
Regulations
Finland’s National Strategy on Invasive Alien Species (GR 2012)
Government Decree on Managing the Risk Caused by Alien Species (704/2019, VN 912/2023)