66 



V. The Grass Association. 



(Plate V, fig. 1.) 



For want of a better term this has been called the grass 

 association. It constitutes the transition from the marsh 

 proper to the marsh border. It is characterized not only by 

 a great variety of grasses, but by many of the Compositse and 

 such plants as the turtlehead, the vervains, and others that 

 are typical of wet meadows. The following grasses are among 

 those found here: 



Bromus ciliatus L. 

 Calamagrostis canadensis (Michx.) 

 Elymus striatus Willd. 

 Glyceria nervata (Willd.) Trin. 

 Glyceria pallida (Torr.) Trin. 

 Glyceria acutiflora Torr. 

 Leersia oryzoides (L.) SW. 

 Phalaris arundinacea L. 



The other more common species of plants are as follows: 



Ambrosia artemisoefolia L. 

 Ambrosia trifida L. 

 Asclepias incarnata L. 

 Aster paniculatus Lam. 

 Aster novoB-anglice L. 

 Bidens connata Muhl. 

 Bidens cernua L. 

 Chelone glabra L. 

 Eupatorium perfoliatum L, 

 Eupatorium purpureum L, 

 Galium L. (several species) 

 Impatiens pallida Nutt. 

 Impatiens biflora Walt. 

 Lobelia cardinalis L. 

 Lobelia syphilitica L. 

 Mimulus ring ens L. 

 Myosotis scorpioides (True F.) 

 Phytolaca decandra L. 

 Polygonum Hydropiper L. 



Roman Wormwood 



Giant Ragweed 



Swamp Milkweed 



Panicled Aster 



New England Aster 



Swamp Beggar-ticks 



Stick-tight 



Turtlehead 



Boneset 



Joe-Pye Weed 



Bedstraw 



Pale Touch-me-not 



Spotted Touch-me-not 



Cardinal-flower 



Great Lobelia 



Monkey Flower 



Forget-me-not 



Scoke 



Water Pepper 



