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(Arabis canadensis), wild onion (Allium cerniinm), and blue violet (Viola 
sororia). 
In large part, the vegetation of the west slope is similar, with this 
difiference, however, that the ground layer is more open. The larkspur 
is much less abundant, and in some of the steepest places, Viola triloba is 
almost the only plant growing under the few scattered trees. Rock 
ledges and scattered limestone slabs are lichen-covered, and patches of 
xerophytic mosses occur here and there. 
Fig. 33. Reforested slopes of a hill at Anderson’s Ferry. The right hand slope 
is toward the Ohio river. 
At the edge of the bare clifif, are red oak and Ostrya with spring 
beauty (Claytonia virginica), meadow rue (Thalictrnm dioicum), alum 
root (Heuchera americana), and early saxifrage (Saxifraga virginiensis) 
beneath them (dg. ^ 4 ). As the slope becomes gentle above the top of 
the cliff, this association gives way to a more mesophytic one. On the 
flat hilltop, basswood and ash are found, together with numerous small 
sugar maples. Instead of the xerophytic herbs of the steep hillsides, are 
