170 DKSCHIITIONS OF THE SHRUBS 



KEY TO SOME POPULAR SINGLE ROSES 



* Stems more or less densely covered with both prickles and bristles ; 



sepals remaining on the large globular fruit. Erect shrubs with no 



tendency to climbing habit. (A.) 



A. Tall, to C feet ; leaves with 5-9 rough thick shining oval blades ; 

 flowers about 3 inches broad, either white, pink, or purple ; fruit 

 (1 inch) brick-red with long more or less spreading sepals. JAP- 

 ANESE ROUGH-LEAVED ROSE (249) Rosa rugosa. 

 A. Low, bushy, 1-4 feet ; leaves with 3-9 often resinous blades ; 

 flowers solitary, about 2 inches broad, deep rose color; fruit 

 (|-1 inch) with long erect sepals. PRICKLY ROM; Rosa acicu- 

 laris. 



A. Low, 1-4 feet; leaves with 7-11 small, 1 inch or less, smooth 

 not resinous blades; flowers clustered; fruit smooth (| inch), 

 with long spreading sepals. ARKANSAS ROSE Rosa arkansana. 



* Stems armed with stout recurved spines or prickles and without soft 



hairs (except possibly at base) ; sepals of the calyx spreading and 

 dropping off from the fruit. Straggling bushes with a slight ten- 

 dency to climbing habits. All are deciduous. (B.) 



B. Fruit oblong and nearly smooth Q-f inch long); leaf-blades 5-7, 

 coarsely serrate. (C.) 



C. Leaf-blades regularly once-serrate. DOG ROSE (250) Rosa 

 canina. 



C. Leaf-blades twice-serrate. SWEETBRIER or EGLANTINE (251) 



- Rosa rubiginosa. 

 B. Fruit globular and bristly, about ^ inch long. (D.) 



D. Leaf-blades 5-9 (commonly 7), finely serrate. (E.) 



E. Leaf-blades elongated, thin. SWAMP ROSE (252) Rosa 



Carolina. 



E. Leaf-blades thick, dark green and shining above ; stems 

 brownish red. GLOSSY ROSE (253) Rosa virginiana (1\. 

 lucida). 



D. Leaf-blades commonly 5 (rarely 7), coarsely serrate; fruit. 

 with spreading and early deciduous sepals. PASTURE ROSE 



(254) Rosa humilis. 



D. Leaf-blades 3 (rarely 5), hairy beneath ; flowers deep red fad- 

 ing to whitish ; plant often decidedly climbing. PRAIRIE ROSE 



(255) Rosa setigera. 



B. Fruit globular ; with erect persistent sepals, nearly \ inch in 

 diameter, smooth or nearly so ; steins nearly free from prickles, 

 KVKLY WILD HOSE (250) Rosa bhlnila. 



