smooth rose

smooth rose

 

 

 

 

 

 

 

 

 

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Rosa blanda var. blanda


Taxonomy

Family:

Rosaceae (rose)

 

Subfamily:

Rosoideae

 

Tribe:

Roseae

 

Genus:

Rosa

 

Subgenus:

Rosa

 

Section:

Rosa


Nativity

Native

Status

Common and ubiquitous

Habitat

Dry to moderate moisture. Prairies, open woodlands, forest margins, thickets, dunes, fencerows, roadsides, railroads. Full to partial sun.

Flowering

Early June to Late June

Flower Color

Pink or reddish

Height

36 to 48


Identification

This is a 36 to 48 tall, erect, perennial shrub that rises on a single stem or a tight cluster of 2 to 4 stems from a root crown and rhizomes. It often forms loose colonies.

The stems are erect, slender, and weak. First-year stems and branches are reddish-brown to dark purplish-brown and have no prickles. As they age they become gray and rough and the lower portion of the stem develops slender, straight prickles. The upper portion of the plant remains relatively free of prickles.

The leaves are alternate, deciduous, 2 to 3½ long, and 2 to 2¾ wide. They are on hairy, to13 16 long leaf stalks. At the base of the leaf stalk is a pair of leaf-like stipules that are fused to the base of the leaf stalk. The stipules are untoothed or may have a few glandular teeth above the middle. The leaves are pinnately divided into usually 7, sometimes 5 or 9, leaflets.

The leaflets are elliptical to inversely egg-shaped, 1 to 19 16 long, and to wide. They are angled or rounded at the base and blunt or rounded at the tip. The upper surface is dark green, dull, and hairless. The lower surface is paler green and softly hairy. The margins are singly toothed with 10 to 17 sharp, forward-pointing teeth per side. The lower quarter of the margin is untoothed.

The inflorescence is a solitary flower or cluster of 2 to 4 flowers at the ends of lateral branches of woody, previous year’s stems.

The flowers are 1½ to 2 in diameter. They are on hairless, to ¾ long stalks. There are 5 green, to 1 long, 1 16 to wide sepals; 5 pink or reddish, ¾ to13 16 long and wide petals; and numerous stamens and styles. The hypanthium is hairless.

The fruit is an achene surrounded by the mature floral tube (hip). The hip is red, nearly spherical to egg-shaped, berry-like, and to ¾ in diameter. It matures in early August to mid-September.

 
Similar
Species

Other roses have prickles throughout, including on new growth.


Range Range Map   Sources: 2, 3, 5, 7, 8.
 
Sightings

Cherry Grove Blind Valley SNA

Crow-Hassan Park Reserve

Elm Creek Park Reserve

Kellogg-Weaver Dunes SNA
Weaver Dunes Unit

Lake Rebecca Park Reserve

Morton Outcrops SNA

Old Mill State Park

Sibley State Park

Twin Lakes SNA

Wild River State Park


Comments

 


Images  
Plant smooth rose   smooth rose        
               
Leaf smooth rose   smooth rose        
               
Stem smooth rose   smooth rose        
               
Fruit smooth rose            

Synonyms

Rosa blanda var. carpohispida

Rosa rousseauiorum

Rosa subblanda

Rosa williamsii

 
Common
Names

meadow rose

prairie rose

smooth rose

smooth wild rose


 

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