SLENDER NAIAD 

 (Najas gracillima) 



Minnesota to Maine, 

 Missouri and Virginia. 



Resembles Northern Naiad 

 but has longer, slenderer 

 leaves and oblong, dull seeds 



HOKNED-PONDWEED 

 (Zannichellia 



palustris) 



Fresh and al- 

 kali water inland 

 from Alaska to 

 Newfoundland, Cal- 

 ifornia, Texas and 

 Florida; and fresh 

 and brackish water 

 along each coast. 



Leaves are 

 in pairs at each 

 joint, where there 

 often are clusters 

 of oblong, slender- 

 tipped seeds. 



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