Pyrus melanocarpa (Michx.) Willd. (Aroma melanocarpa 



(Michx.) Ell.) Black chokeberry. 



Thickets. 



Rosa Carolina L. (R. humilis Marsh, in part.) Carolina rose. 



Dry banks. 

 Rosa eglanteria L. (R. rubiginosa L.) Sweetbrier. 



Old fence rows and thickets. 

 Rosa virginiana Mill Virginia rose. 



Swampy places. 

 Rubus argutus Link Highbrush blackberry. 



Old fields and fence rows. 



Rubus argutus X R. flagellaris 



Found in Magnolia Swamp only, locations 54 and 55. 



Rubus cuneifolius Pursh Sand blackberry. 



Rare in poor dry soil. 



Rubus flagelaris Willd. (R. procumbens of the 1919 "Flora of the District 

 of Columbia.") 



Fields and roadsides. 

 Rubus hispidus L Swamp blackberry. 



Introduced into native azalea garden with collected plants. 

 Rubus occidentalis L Black raspberry. 



Old fields and thickets. 

 Rubus phoenicolasius Maxim Wineberry. 



Southwest base of Mount Hamilton. 



LEGUMLNOSAE 



Amphicarpa bracteata (L.) Fern Hogpeanut. 



Woods. Cleistogamous flowers, developed at the end of slender leafless 

 branches, produce single-seeded pods in the soil or leafmold. 



Amphicarpa bracteata var. comosa (L.) Fern. (A. pitcheri T. & G.) 3 



Pitchers hogpeanut. 

 Moist soil along watercourses or swamp margins. 



Apios americana Medic Potatobean groundnut. 



Wet soil along river and streams. 

 Baptisia tinctoria (L.) R. Br Wild-indigo. 



Dry hillsides. 



3 Both species and variety frequently grow together and hybridize freely, giving rise 

 to many intermediate forms that have confused botanists for many years. 



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