NORTHERN NAIAD 

 (Najas flexilis) 



British Columbia to 

 Alberta and Oregon; and South 

 Dakota to Newfoundland, 

 Missouri and Virginia. 



Tops of plants are often 

 almost out of sight under 

 water, as in other naiads. 

 There are two leaves at each 

 joint, and sometimes short 

 branches make it look as 

 though there were more. 

 Single seeds are half -hidden 

 between leaf bases and stems. 

 They are long- oval and shiny 

 under a thin, dull skin. 



SOUTHERN NAIAD 

 (Najas guadalupensis) 



Fresh water inland from Oregon to 

 Quebec, California, Texas and Florida; 

 and fresh and slightly brackish water 

 along the Atlantic Coast. 



Resembles Northern Naiad but has 

 stubby, straight leaves and oblong, 

 dull seeds. The plant pictured is a 

 large type that grows in the South. It 

 resembles non-blooming Slender and Leafy 

 Pondweeds but has all its leaves in 

 pairs. 



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