442 THE PLANT LIFE OF MARYLAND 



ROSACEAE. 



Opulaster opulifolius (L.)Kuntze. Ninebark. 



Midland and Mountain Zones; along streams. 

 Washington County, Hancock (745). 



Spiraea salicifolia L. Willow-leaved Meadow-Sweet. 



Throughout the state; along streams and in open moist situations, being 



common in the Midland and Mountain Zones. 

 Montgomery County, Gaithersburg (1735). 



Spiraea tomentosa L. Hardhack. 



Throughout the state; along streams and in open moist situations; 



infrequent. 

 Worcester County, Bosiron (1064). 



Spiraea corymbosa Raf. Corymbed Spiraea. 



Upper Midland District and Mountain Zone; in dry forests; infrequent. 

 Washington County, near Rohrersville (1768). 



Porteranthus trifoliatus (L.) Britton. Indian Physic. 



In Cecil County and throughout the Midland and Mountain Zones; in dry 

 forests and open situations; common. 



Rubus odoratus L. Purple-flowering Raspberry. 



Upper Midland District and Mountain Zone; in dry forests, preferring 



rocky slopes among sandstone boulders; frequent. 

 Allegany County, Cumberland (867). 



Rubus occidentalis L. Black Raspberry. 



Throughout the state; in moist forests and flood plains; common. 



Rubus alleghaniensis Porter. Mountain Blackberry. 



Upper Midland District and Mountain Zone; in dry forests and open 

 situations; frequent. 



Rubus cuneifolius Pursh. Sand Blackberry. 



Coastal Zone; in open dry situations; preferring sandy soil; common in 



the southern counties of the Eastern Shore, not observed north of 



Greensborough, Caroline County. 

 Worcester County, Snow Hill (1051). 



Rubus villosus Ait. Bush Blackberry. 



Coastal Zone. 



Rubus hispidus L. Swamp Blackberry. 



Throughout the state; in moist forests; swamps and bogs; common. 



Rubus canadensis L. Low Running Blackberry. 



Throughout the state; in dry open situations; common. 



Dalibarda repens L. Dalibarda. 



Mountain Zone; in moist forests and swamps; frequent. 

 Garrett County, Boiling Spring (1965). 



