130 SANDUSKY FLORA. 



ASCLEPIAS, L. Milkweed. 



A. incarnata, L. Swamp Milkweed. 

 Common. 



A. INCARNATA PULCHRA, PerS. 



Castalia ; rare. 

 A. obtusifolia, Michx.* 



In sand, Margaretta Ridge, Castalia cemetery, 



southern Perkins ; rare. 

 A. phytolaccoides, Pursh. Poke Milkweed. 



In nine places, but scarce. Put-in-Bay. 

 A. purpurascens, L. Purple Milkweed. 



Perkins, Margaretta, Groton, Marblehead, 



Catawba; infrequent. 

 A. quadrifolia. Jacq. 



Huron River and Perkins ; rare. 

 A. sullivantii, Engelm.* 



Oxford and Sandusky ; scarce. 

 A. syriaca, L. Common Milkweed or Silkweed. 



Common. 



A. tuberosa, L. Butterfly-weed. Pleurisy-root. 

 Frequent. Put-in-Bay. North Bass. 



A. VERTICILLATA, L. 



Southern Margaretta, Groton, Marblehead, 

 Catawba; scarce. 



CONVOLVULACE^E. 



CONVOLVULUS, L. Bindweed. 



C. arvensis, L. Small Bindweed. 

 Sandusky and Islands; local. 



C. SEPIUM, L. ( CALYSTEGIA SEPIUM, R. Br.) 



Hedge Bindweed. 



Common. A rank weed in corn fields in Perkins. 

 On portions of the bay shore of Cedar Point so 

 thick as to make walking difficult. 



