Rosa spp.
Family: Rosaceae
Rosa image
Patrick Alexander  
Hypanthium globose to urceolate, with a constricted orifice; sep usually long-attenuate or prolonged into a foliaceous tip, often persistent in fr; pet large, spreading at anthesis, pink to red, white, or yellow; stamens very numerous, inserted near the orifice of the hypanthium on relatively short filaments; ovaries mostly numerous, inserted on the bottom or also on the sides of the hypanthium; styles usually barely exserted, distinct or ┬▒united; fr a bony achene; mature hypanthium, called a hip, commonly colored and pulpy or fleshy; shrubs or woody vines, usually prickly; lvs pinnately compound with 3-11 serrate lfls, the stipules commonly large and adnate to the petiole; x=7. Genus beset with hybridization and polyploidy. 100+, mainly N. Temp. The application of the names R. spinosissima and R. cinnamomea is now so confused that both have been abandoned in Flora Europaea. We do likewise.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
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Rosa
Image of Rosa alba
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Image of Rosa amblyotis
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Image of Rosa arvensis
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Image of Rosa bakeri
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Image of Rosa bella
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Image of Rosa bolanderi
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Image of Rosa brownii
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Image of Rosa caeruleimontana
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Image of Rosa collaris
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Image of Rosa conjuncta
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Image of Rosa copelandii
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Image of Rosa corymbifera
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Image of Rosa corymbiflora
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Image of Rosa crenulata
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Image of Rosa davyi
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Image of Rosa durandii
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Rosa
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Image of Rosa floridana
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Image of Rosa glutinosa
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Image of Rosa granulata
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Image of Rosa granulifera
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Image of Rosa gratissima
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Image of Rosa helenae
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Image of Rosa humilis
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Image of Rosa indica
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Image of Rosa johnstonii
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Rosa
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Image of Rosa koreana
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Image of Rosa lancifolia
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Rosa
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Image of Rosa maximowicziana
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Image of Rosa mirifica
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Image of Rosa moschata
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Image of Rosa moyesii
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Rosa
Image of Rosa nitida
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Image of Rosa obtusiuscula
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Image of Rosa oligocarpa
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Image of Rosa oreophila
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Image of Rosa pandorana
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Image of Rosa pendulina
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Image of Rosa pimpinellifolia
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Image of Rosa piscatoria
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Image of Rosa platyacantha
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Image of Rosa pratincola
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Image of Rosa pringlei
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Image of Rosa puberulenta
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Image of Rosa pyrifera
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Image of Rosa richardii
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Image of Rosa rotundata
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Image of Rosa roxburghii
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Image of Rosa rudiuscula
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Image of Rosa salictorum
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Rosa
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Image of Rosa sericea
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Image of Rosa serrulata
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Image of Rosa sonomensis
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Image of Rosa subserrulata
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Rosa
Image of Rosa texarkana
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Image of Rosa underwoodii
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Image of Rosa villosa
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Image of Rosa williamsii
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Image of Rosa x alba
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Image of Rosa x dulcissima
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Image of Rosa x harisonii
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Image of Rosa x noisettiana
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Image of Rosa x palustriformis
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Image of Rosa xanthina
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Image of Rosa yainacensis
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