New York Metropolitan Flora

Nomenclature

Rosa L., Sp. Pl. 1: 491. 1753. Gen. Pl., ed. 5, 217. 1754. LECTOTYPE: Rosa centifolia L., designated by Britton & Brown (1913), Rosa cinnamomea L., Britton & Wilson (1923), or Rosa canina L., Rehder (1949).

Key to the species of Rosa

1. Styles united into a column, protruding from the orifice of the hypanthium; stems climbing or trailing...2
1. Styles distinct, only slightly if at all exserted, usually only the stigma is exserted; erect to arching, usually colonial shrubs...4

2. Flowers pink; leaflets 3 or 5; stipules entire or nearly so...Rosa setigera
2. Flowers white; leaflets 7 or 9...3

3. Stipules pectinate and glandular-toothed...Rosa multiflora
3. Stipules dentate...Rosa wichuriana

4. Outer sepals pinnatifid or at least with narrow lateral lobes...5
4. Outer sepals entire...7

5. Lower leaf surfaces glabrous or nearly so; leaf teeth glandless...Rosa canina
5. Lower leaf surfaces glandular; leaf teeth glandular...6

6. Styles pubescent; sepals erect and persistant in fruit...Rosa eglanteria
6. Styles glabrous; sepals soon deciduous...Rosa micrantha

7. Leaflets rugose, densely soft-pubescent beneath; young branches, thorns, leaf rachises, and pedicels densely pubescent...Rosa rugosa
7. Leaflets not rugose, glabrous, or slightly pubescent beneath; young branches, thorns, and often other parts glabrous or stipitate-glandular...8

8. Infrastipular thorns strong and slightly curved toward the base of the plant; internodal thorns or prickles absent or occasional at base of plant...11
8. Infrastipular thorns absent or straight; internodal spines often of similar shape and size...9

9. Sepals persistent and connivent as a beak on fruit; flowers borne on lateral branches from stems of previous year; prickles absent or confined to base...Rosa blanda
9. Sepals deciduous in fruit; flowers borne on current year’s stems; prickles found throughout the stem...10

10. Stems with hundreds or thousands of prickles; stipules herbaceous, expanded above...Rosa nitida
10. Stems with few prickles; stipules fine, linear...Rosa carolina

11. Pedicels and hypanthia smooth, glabrous; sepals erect on the mature fruit...12
11. Pedicels and hypanthia glandular-hispid; sepals widely spreading on mature fruit...13

12. Flowers double...Rosa majalis
12. Flowers single...Rosa cinnamomea

13. Leaves finely serrate; stipules firm, linear, or with parallel sides...Rosa palustris
13. Leaves coarsely serrate; stipules herbaceous, dilated toward the apex...Rosa virginiana

List of Rosa Species

References to Rosa

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• Bartgis, R. 1991. Cypripedium candidum and six other additions to the known flora of Maryland. Castanea 56: 220-1.
• Becker, H. F. 1963. The fossil record of the genus Rosa. Bull. Torrey Bot. Club 90: 99-110.
• Belder, J. 1980. Nomenclatural difficulties of Rosa virginiana. Gartn.-Bot. Briefe 63: 32-3. (In German; English summary)
• Bell, L. 1972. Rose signatures. Morris Arbor. Bull. 23: 59-66.
• Best, G. N. 1890. Remarks on the group Cinnamomeae of the North American roses. Bull. Torrey Bot. Club 17: 142-9.
• Bond, T. E. T. 1945. On sepal phyllody in roses and some related phenomena. Experimental data and a quantitative interpretation. New Phyt. 44: 220-30.
• Boulenger, G. A. 1937. Introduction a l'etude du genre Rosa. Les caracteres morphologiques passes en revue au point de vue de leur valeur pour la systematique. Bull. Jard. Bot. Etat 14: 241-73. (In French; see also revisions of certain sects. in vols. 9, 10, 12, 13, 14.)
• Boutineau, E. 1883. De la fleur des Rosacees. Contribution a l'etude des ovaires inferes. Paris. , 44 pages.
• Boynton, K. R. 1931. Rosa rugosa. Addisonia 16: 91-2 [19-20], pl. 522.
• Bruneau, A. et.al. 2007. Phylogenetic relationships in the genus Rosa: new evidence from chloroplast DNA sequences and an appraisal of current knowledge. Syst. Bot. 32: 366-378.
• Burbeck, J. H. 1975. Wild roses of the northeast. Amer. Rose 23(1): 17.
• Christen, D. C.; Matlack, G. R. 2009. The habitat and conduit functions of roads in the spread of three invasive plant species. Biological Invasions 11: 453-465. (Microstegium vimenium, Rosa multiflora, Tussilago farfara)
• Cockerell, T. D. A. 1929. The evolution and classification of roses. Torreya 29: 97-103.
• Crepin, F. 1889. Sketch of a new classification of roses. J. Roy. Hort. Soc. 11: 217-28.
• Crepin, F. 1896. Rosae americanae I. Observation upon the genus Rosa in North America. Bot. Gaz. 22: 1-34.
• Crepin, F. 1869. Primitia monographiae rosarum. Materiaux pour servir a l'histoire des roses. 856 pp. Gand [Ghent], Belgium. 1869-1882.
• Crepin, F. 1887. Nouvelles remarques sur les roses americaines. Bull. Soc. Roy. Bot. Belgique 26: 40-9. (See also Ibid. 28(2):18-33. 1889.)
• Crocker, W.; Barton, L. V. 1931. After-ripening, germination, and storage of certain rosaceous seeds. Contr. Boyce Thompson Inst. Pl. Res. 3: 385-404.
• Decker, S. R. et.al. 1991. Nutritional evaluation of winter foods of wild turkeys. Canad. J. Zoology 69: 2128-2132.
• Dirr, M. A. 1978. Tolerance of seven woody ornamentals to soil-applied sodium chloride. J. Arboric. 4(7): 162-5.
• Drummond, B. A. 2005. The selection of native and invasive plants by frugivorous birds in Maine. Northeastern Naturalist 12: 33-44.
• Eckardt, N. 1987. Element stewardship abstract for Rosa multiflora - rambler rose.
• Erlanson, E. W. 1934. Experimental data for a revision of the North American wild roses. Bot. Gaz. 96: 197-259.
• Erlanson, E. W. 1928. Ten new American species and varieties of Rosa. Rhodora 30: 109-21.
• Erlanson, E. W. 1929. Cytological conditions and evidences for hybridity in North American wild roses. Bot. Gaz. 87: 443-506.
• Erlanson, E. W. 1931. Sterility in wild roses and in some species hybrids. Genetics 16: 75-96.
• Erlanson, E. W. 1938. Phylogeny and polyploidy in Rosa. New Phyt. 37: 72-81.
• Erlanson, E. W. 1929. The phenological procession in North American wild roses in relation to the polyploid series. Pap. Michigan Acad. Sci. 11: 137-50.
• Evans, J. E. 1983. A literature review of management practices for multiflora rose (Rosa multiflora). Natural Areas Journal 3: 6-15.
• Fagerlind, F. 1951. Influence of the pollen-giver on the production of hips, achenes and seeds in the "Canina roses". Acta Horti Berg. 16: 121-68.
• Fagerlind, F. 1958. Hip and seed formation in newly formed Rosa polyploids. Acta Horti Berg. 17: 229-56.
• Fernald, M. L. 1918. Rosa blanda and its allies of northern Maine and adjacent Canada. Rhodora 20(233): 90-6.
• Fernald, M. L. 1948. Some minor forms of Rosa. Rhodora 50(594): 145-7.
• Flory, W. S. 1950. Pollen condition in some species and hybrids of Rosa with a consideration of associated phylogenetic factors. Virginia J. Sci. 1: 11-59.
• Gleason, H. A. 1945. A botanist looks at a rose. J. New York Bot. Gard. 46: 215-20.
• Grossi, C.; Raymond, O.; Jay, M. 1998. Flavonoid and enzyme polymorphisms and taxonomic organisation of Rosa sections: Carolinae, Cinnamomeae, Pimpinellifoliae and Synstylae. Biochem. Syst. Ecol. 26: 857-871.
• Gustafsson, Å. 1944. The constitution of the Rosa canina complex. Hereditas 30: 405-28.
• Harkness, J. 1980. Rose classification. The Plantsman 2(3): 179-81.
• Heath, P. V. 1992. The type of Rosa carolina Linne. Calyx 2(2): 80.
• Heath, P. V. 1997. Commentary on the proposal to reject Rosa eglanteria Linne, with supplementary proposals to amend and authorize. Calyx 5: 121-6.
• Herring, P. 1925. Classifications of Rosa. Dansk Bot. Ark. 4(9): 1-24.
• Herron, P.M. et.al. 2007. Invasive plants and their ecological strategies: prediction and explanation of woody plant invasion in New England. Diversity and Distributions 13: 633-644.
• Huebner, C. D. 2003. Vulnerability of oak-dominated forests in West Virginia to invasive exotic plants: temporal and spatial patterns of nine exotic species using herbarium records and land classification data. Castanea 68: 1-14.
• Hunter, J. C.; Mattice, J. A. 2002. The spread of woody exotics into the forests of a northeastern landscape, 1938-1999. J. Torrey Bot. Soc. 129: 220-227.
• Hurst, C. C. 1941. Notes on the origin and evolution of our garden roses. I. Ancient garden roses (2000 B.C. to A.D. 1800). J. Roy. Hort. Soc. 66: 73-82.
• Hurst, C. C. 1941. Notes on the origin and evolution of our garden roses. II. Modern garden roses (1800-1940). J. Roy. Hort. Soc. 66: 242-50, 282-9.
• Jackson, G. 1934. The morphology of the flowers of Rosa and certain closely related genera. Amer. J. Bot. 21: 453-66.
• Jackson, G. 1926. The morphology and anatomy of the flowers of Rosa and certain closely related genera. M.S. Thesis Cornell Univ., Ithaca, NY56 figs. + 33 p.
• Jarvis, C. E. 1992. Seventy-two proposals for the conservation of types of selected Linnaean generic names, the report of Subcommittee 3C on the lectotypification of Linnaean generic names. Taxon 41: 552-83.
• Jesse, L. C. et.al. 2006. Insect pollinators of the invasive plant, Rosa multiflora (Rosaceae), in Iowa, USA. Weed Biol. Manag. 6: 235-240.
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• Kellogg, A. A. et.al. 2011. Morphological studies of developing Rubus prickles suggest that they are modified glandular trichomes. Botany 89: 217-226.
• Kemp, J. R. et al. et.al. 1993. Floral development of Rosa setigera. Canad. J. Bot. 71(1): 74-86.
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• Koopman, W. J. M. et.al. 2008. AFLP markers as a tool to reconstruct complex relationships: a case study in Rosa (Rosaceae). Amer. J. Bot. 95: 353-366.
• Kuhns, L. J.; Fretz, T. A. 1979. Potential use of leaf enzymes for identification of roses. Ohio Rep. Res. Devel. Agric. Home Econ. Nat. Res. 64(4): 51-3. (Ref. in Bibliogr. Agric., 44(3-4): 021561. 1980.)
• LaFleur, N. et.al. 2009. Does frugivory by European starlings (Sturnus vulgaris) facilitate germination in invasive plants? J. Torrey Bot. Soc. 136: 332-341.
• Lewis, W. H. 1958. A monograph of the genus Rosa in North America. III. R. setigera. Southw. Naturalist 3: 154-74.
• Lewis, W. H. 1957. A monograph of the genus Rosa in North America east of the Rocky Mountains. Ph.D. Thesis Univ. Virginia459 p. (Diss. Abstr. 17:2389. 1957.)
• Lewis, W. H. 1970. Species roses in the United States and their relation to modern roses. Amer. Rose Ann. 55: 78-85.
• Lewis, W. H. 1958. Minor forms of North American species of Rosa. Rhodora 60(717): 237-43.
• Lewis, W. H. 1958. The roses of Virginia and West Virginia. Castanea 23: 77-88.
• Lewis, W. H. 1957. An introduction to the genus Rosa with special reference to R. acicularis. Virginia J. Sci. 8: 197-202.
• Lewis, W. H. 2008. Rosa carolina (rosaceae) subspecies and hybrids in eastern and midwestern United States, Canada, and Mexico. Novon 18: 192-198.
• Lotowycz, B. 1994. An occurrence of Rosa nitida on Long Island. Long Island Botanical Society Newsletter 4: 2.
• Lundgren, M. R. 2004. Influence of land use and site characteristics on invasive plant abundance in the Quinebaug Highlands of southern New England. Northeastern Naturalist 11: 313-332.
• Masse, R. J.; Vulinec, K. 2010. Possible impact of multiflora rose on breeding-bird diversity in riparian forest fragments of central Delaware. Northeastern Naturalist 17: 647-658.
• McDonnell, M. J. 1986. Old field vegetation height and the dispersal pattern of bird-disseminated woody plants. Bull. Torrey Bot. Club 113: 6-11.
• Meiners, S. J. 2007. Apparent competition: an impact of exotic shrub invasion on tree regeneration. Biological Invasions 9: 849-855. (Lonicera maackii & Rosa multiflora)
• Melville, R. 1967. The problem of classification in the genus Rosa. Bull. Jard. Bot. Nat. Belg. 37: 39-44.
• Mercure, M.; Bruneau, A. 2008. Hybridization between the escaped Rosa rugosa (Rosaceae) and native R. blanda in eastern North America. Amer. J. Bot. 95: 597-607.
• Merriam, R. W. 2003. The abundance, distribution and edge associations of six non-indigenous, harmful plants across North Carolina. J. Torrey Bot. Soc. 130: 283-291.
• Mikanagi, Y.; Yokoi, M.; Ueda, Y.; Saito, N. 1995. Flower flavonol and anthocyanin distribution in subgenus Rosa. Biochem. Syst. Ecol. 23: 183-200.
• Myers, J. A. et.al. 2004. Seed dispersal by white-tailed deer: implications for long-distance dispersal, invasion, and migration of plants in eastern North America. Oecologia 139: 35-44.
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• Ritz, C. M.; Wissemann, V. 2003. Male correlated non-matroclinal character inheritance in reciprocal hybrids of Rosa section Caninae (DC.) Ser. (Rosaceae). Pl. Syst. Evol. 241: 213-221.
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• Rydberg, P. A. 1923. Rosa palustris. Addisonia 8: 37-8.
• Schmid, F. C. 1958. Cedar waxwings and fox sparrows feed on multiflora rose. Wilson Bull. 70: 194-195.
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• Sherburne, J. A. 1972. Effects of seasonal changes in the abundance and chemistry of the fleshy fruits of northeastern woody shrubs on patterns of exploitation by frugivorous birds. Ph.D. Dissertation Cornell University, Ithaca, NY157 p.
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