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Genus Rosa Family Rosaceae

Description: Erect trailing or scandent shrubs, mostly with prickles, glabrous to pubescent, glandular hairs also often present.

Leaves pinnate, rarely 1-foliolate, leaflets mostly toothed; stipules fused to petiole.

Flowers showy, solitary or in corymbs. Hypanthium urn-shaped, floral parts strongly perigynous. Sepals usually 5. Petals 5 or more. Stamens numerous, inserted on rim of hypanthium. Carpels numerous, ovaries superior, styles protruding through a narrow aperture in hypanthium.

Achenes included within enlarged swollen hypanthium commonly known as a 'hip'.


Distribution and occurrence: World: 250 species, Europe, Asia & North America. Australia: c. 8 species (naturalized), Qld, N.S.W., Vic., Tas., S.A.

Many species and hybrids are cultivated for their flowers.

Text by G. J. Harden & A. N. Rodd
Taxon concept:

Taxa not yet included in identification key
Rosa luciae,    Rosa wichuraiana

 Key to the species 
1Hypanthium and hip glabrous and without prickles or sometimes with scattered fine prickles; outer sepals pinnatifid2
Hypanthium and hip densely hairy or covered with bristles or fine prickles; outer sepals entire or shortly lobed3
2Leaves glandular below; peduncles with glandular hairs and fine pricklesRosa rubiginosa
Leaves not glandular; peduncles glabrous, without prickles
                       Back to 1
Rosa canina
3Branches, hypanthium and hip densely hairy, prickles absent from hypanthium and hip; flowers with prominent bractsRosa bracteata
Branches, hypanthium and hip glabrous, covered with bristles or fine prickles; flowers without prominent bracts
                       Back to 1
4
4Leaves with 3 or rarely 5 leafletsRosa laevigata
Leaves with 9–15 leaflets
                       Back to 3
Rosa roxburghii

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