roses

(Rosa spp.)

Overview
prairie rose
 

Rosa (rose) is a genus of perennial, woody, flowering plants with worldwide distribution. It occurs on every continent except Greenland and Antarctica. There are about 140 species of rose worldwide, at least 33 in North America north of Mexico, and 5 in Minnesota, not including plantings in parks and gardens. Most are erect shrubs, some are climbing vines (lianas), some are sprawling stems that may climb over other vegetation. Many hybrids and cultivars have been developed as garden roses. Rose stems are often armed with sickle-shaped, hook-like prickles. The prickles are usually referred to as thorns. However, true thorns are modified stems, while the prickles on roses are outgrowths of the outer layer of stem tissue.

     
           
 
Description
 
 

Roses have woody stems that are often covered with thorn-like prickles. The leaves are usually pinnately divided into 5 to 11 leaflets, sometimes ternately divided into 3 leaflets, rarely simple. The leaflets are usually toothed and often have prickles on the underside. The lateral leaflets are stalkless or short-stalked. The terminal leaflet is almost always short-stalked. The flowers of all roses have 5 petals except for a single Chinese species that has 4 petals and for flowers that are doubled. The berry-like fruit is called a hip.

 
     
 
Distribution
 
 

Distribution Map

 

Sources

2, 3, 4, 5, 7, 8, 24, 28, 29, 30.

 
  11/9/2019      
         
 
Taxonomy
 
  Kingdom Plantae (green algae and land plants)  
  Subkingdom Viridiplantae (green plants)  
  Infrakingdom Streptophyta (land plants and green algae)  
  Superdivision Embryophyta (land plants)  
  Division Tracheophyta (vascular plants)  
  Subdivision Spermatophytina (seed plants)  
  Class Magnoliopsida (flowering plants)  
  Superorder Rosanae  
 

Order

Rosales (roses, elms, figs, and allies)  
 

Family

Rosaceae (rose)  
  Subfamily Rosoideae  
  Tribe Roseae  
       
 

Subordinate Taxa

 
 

multiflora rose (Rosa multiflora)

prairie rose (Rosa arkansana)

prickly rose (Rosa acicularis ssp. sayi)

smooth rose (Rosa blanda var. blanda)

Wood’s rose (Rosa woodsii var. woodsii)

 
       
 

Synonyms

 
 

 

 
       
 

Common Names

 
 

rose

 
       

 

 

 

 

 

 

 

 

 

       
Visitor Photos
   

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Alfredo Colon
       
  rose (Rosa sp.)    
       
MinnesotaSeasons.com Photos
   

prairie rose (Rosa arkansana)

  prairie rose   prairie rose
       

prickly rose (Rosa acicularis ssp. sayi)

  prickly rose   prickly rose
       

smooth rose (Rosa blanda var. blanda)

  smooth rose   smooth rose
       

 

Camera

     
Slideshows
   
  Rosa sp.
Virens (Latin for greening)
 
  Rosa sp.  
     

 

slideshow

       
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Visitor Sightings
   

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Alfredo Colon
8/9/2019

Location: Woodbury, Minnesota

rose (Rosa sp.)


     
     
 
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Binoculars


Created: 11/9/2019

Last Updated:

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