BugwoodWiki Article

Seaside rose
Rosa rugosa Thunb.


Rosa rugosa is a deciduous, multi-stemmed shrub. Stems are erect to arching, to 5 ft (1.5 m), often much branched, tomentose when young and densely prickly. Prickles from large to small are slender and straight. Larger prickles near the base may be tomentose and are usually glabrous at the point. It sends out woody rhizomes which can expand or create infestations.
Leaves are alternate with 5–9 leaflets about 0.8-2 in (2–5 cm) long by 0.6-1.2 in (1.5–3 cm) wide. Leaflets are widely elliptical, acute, with broadly cuneate or rounded base. Leaf tops are leathery, dark green, conspicuously bullate or rugose, and rather shiny. Back of leaves are green-grey, hairy with netlike veins. Leaf margin bluntly and simply crenate-serrate, involute, edge of teeth often deflexed. Petiole and rachis are hairy, with many prickles. Stipules are pale green, hairy, 1 x 0.4-0.6 in (2.5 × 1–1.5 cm), divergent, the free part broadly ovate or deltoid.
Flowers usually solitary or few together, 2.4-3.5 in (6–9 cm) across and fragrant. The five petals vary in color from bright purplish-pink to white. There are 200–250 stamens per flower, and usually more than a hundred styles.
Fruit is a hip as in other roses. Hips begin dull green to orange ripening to glossy and brilliant red.
Ecological Threat
R. rugosa can tolerate some salinity and has become an invasive problem in many coastal regions, where it can form monotypic stands. It can change A native of temperate and coastal areas of East Asia, it was has been introduced around the world for ornamental purposes. It is now found in natural areas in Australia, New Zealand, Europe and North America.


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EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Invasive List - This map identifies those states that list this species on their invasive species list. For more information, visit Invasive.org

State Invasives List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Rosidae
Order: Rosales
Family: Rosaceae
Genus: Rosa

Other System Links

Plants: RORU
Bayer: ROSRG
GRIN: 32156
ITIS: 24811
NPDN Host: 34315


Category: Shrub or Subshrub