Family: Alismataceae
                                    
                                    
				
                                    
Group: Monocot
                                    
                                    
				
                                    
Substrate:
					
                                   Terrestrial
					
                                    
                                    
				
                                    
Habit:
					
                                    Herb
					 
                                    
                                    
				
                                    
Perennation:
					
                                    Annual
					
                                    
                                    
				
                                    
Native Range: United States, the West Indies, Mexico, Central America and South America.
                                    
                                    
				
                                    
IRC SOUTH FLORIDA Status:
					
                                    Critically Imperiled
					
              
                
                
				
                                     
Map of select IRC data for peninsular Florida
                                    
				
                                    SOUTH FLORIDA Occurrence:
				  
                                    Present
			      
                                    
                                    
		    
                                    
SOUTH FLORIDA Native Status:
					
                                    Native
                                    
                                    
                                    
				
                                    
South Florida History and Distribution: This was reported as possibly extirpated in South Florida in 
Gann et al. (2002; pp 141-142), based on herbarium specimens collected from the early to mid-1800s to 1948 in the Florida Keys, and a single collection in 1982 from Big Cypress National Preserve on the Monroe County mainland (
Black and Black s.n. FTG). A new collection in South Florida was made in 2016 by Keith Bradley in Collier County in a roadside ditch near Immokalee (
4002 USF); this discovery has also been reported on 
iNaturalist. George Wilder and Jean McCollom (2018) reported 
Echinodorus berteroi at Corkscrew Swamp Sanctuary based on their specimen collected between October 2015 and October 2017 (39496 SWF). In December 2017, Randy Mears made a collection nearby in Lee County at the junction of Corkscrew Road and Alico Road east of I-75 (
s.n. USF). This is an extremely rare plant in Florida and the southeastern United States, and should be assessed for listing by the State of Florida and FNAI.
                                    
                                    
				
                                    
SOUTH FLORIDA Cultivated Status:
					
                                    Not Cultivated
					
                                    
                                    
	            
                                    
Comments: For images, click on the USDA PLANTS or Atlas of Florida Vascular Plants links below.
                                    
                                    
				
          
            Synonyms:
           E. cordifolius, misapplied.
          
					
				
          
            FLORIDA KEYS Occurrence:
          
				  
						Presumed Extirpated
			      
				  
				  
		      
            
FLORIDA KEYS Native Status:
					
            			Presumed Extirpated
	            	
					
					
				
              
IRC FLORIDA KEYS Status:
					
						Presumed Extirpated
					
					
					
                                   
				
                                      
Map of select IRC data for the Florida Keys
                                    
				
          Florida Keys History and Distribution: First collected between 1838 and 1853 by John Loomis Blodgett on the island of Key West.  Reported in 
1913  by John Kunkel Small for pools and limestone sinkholes in the lower Keys.  It was collected in the middle Keys in 1892 by Joseph H. Simpson and in 1948 by J.S. Haeger.  Haeger's collection is the last known report of this from the Florida Keys.  For more information on E. berteroi, see IRC's 
species account.