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Rosa
Family: Rosaceae
Rosa image
Patrick Alexander  
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Vascular plants of NE US and adjacent Canada
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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Show all taxa || << 1 - 50 taxa >>
Rosa abyssinica
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Rosa acicularis
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Rosa aciculata
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Rosa agrestis
Image of Rosa agrestis
Rosa alba
Image of Rosa alba
Rosa alberti
Image of Rosa alberti
Rosa albertii
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not available
Rosa alcea
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Rosa amblyotis
Image of Rosa amblyotis
Rosa anatonensis
Image of Rosa anatonensis
Rosa arizonica
Image of Rosa arizonica
Rosa arkansana
Image of Rosa arkansana
Rosa arvensis
Image of Rosa arvensis
Rosa bakeri
Image of Rosa bakeri
Rosa banksiae
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Rosa beggeriana
Image of Rosa beggeriana
Rosa bella
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Rosa blanda
Image of Rosa blanda
Rosa bolanderi
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Rosa bourgeauiana
Image of Rosa bourgeauiana
Rosa bracteata
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Rosa bridgesii
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Rosa brownii
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Rosa brunonii
Image of Rosa brunonii
Rosa caeruleimontana
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Rosa californica
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Rosa canina
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Rosa cantabrigiensis
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Rosa carolina
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Rosa cathayensis
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Rosa caudata
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Rosa centifolia
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Rosa chinensis
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Rosa chrysocarpa
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Rosa cinnamomea
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Rosa collaris
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Rosa conjuncta
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Rosa copelandii
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Rosa corymbifera
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Rosa corymbiflora
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Rosa crenulata
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Rosa cymosa
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Rosa damascena
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Rosa davidii
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Rosa davurica
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Rosa davyi
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Rosa deamii
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Rosa dumalis
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Rosa dumetorum
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Rosa durandii
Image of Rosa durandii
The National Science Foundation
Developments of SEINet, Symbiota, and associated specimen databases have been supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)