Family: Cactaceae
                                    
                                    
				
                                    
Group: Dicot
                                    
                                    
				
                                    
Substrate:
					
                                   Terrestrial
					
                                    
                                    
				
                                    
Habit:
					
                                    Shrub
					 
                                    
                                    
				
                                    
Perennation:
					
                                   Perennial
					
                                    
                                    
				
                                    
Native Range: South Florida and the West Indies (Cuba, Bahamas).
                                    
                                    
				
          
            Florida Natural Areas Inventory State Status:
          
					
                                    Critically Imperiled
					
                                    
                                    
				
                                    
IRC SOUTH FLORIDA Status:
					
                                    Critically Imperiled
					
              
                
                
				
                                     
Map of South Florida Locations
                                    
				
                                    SOUTH FLORIDA Occurrence:
				  
                                    Present
			      
                                    
                                    
		    
                                    
SOUTH FLORIDA Native Status:
					
                                    Native
                                    
                                    
                                    
				
                                    
South Florida History and Distribution: Ranked as critically imperiled in Rare Plants of South Florida (
Gann et al. 2002; pp 496-497) based on four occurrences in two conservation areas (Long Key State Park, National Key Deer Refuge) and three non-conservation areas (privately owned Layton Hammock, privately owned Teatable Hammock and privately owned hammock on Lower Matecumbe Key) in the Monroe County Keys. New plants have been found at Key Tree Cactus Preserve on Upper Matecumbe Key in Islamorada and Teatable Hammock is now protected within Lignumvitae Key State Park. Plants at the remaining two private parcels are considered possibly extirpated.
                                    
                                    
				
                                    
SOUTH FLORIDA Cultivated Status:
					
                                    Cultivated
					
                                    
                                    
	            
                                    
Comments: For a recent taxonomic revision of this and other Caribbean 
Pilosocereus, see 
Franck et al. (2019). For a current review of 
P. robinii, see the U.S. Fish and Wildlife 
Species Profile. See also our 
Natives For Your Neighborhood website and Florida Natural Areas Inventory's 
 Field Guide to the Rare Plants of Florida page (Chafin 2000). For a digitized image of Elbert Little's Florida range map, visit the 
Exploring Florida website. Some records of this in South Florida may refer to 
P. millspaughii.
                                    
                                    
				
          
            Synonyms:
           P. bahamensis; Pilosocereus polygonus, misapplied.
          
					
				
          
            FLORIDA KEYS Occurrence:
          
				  
						Present
			      
				  
				  
		      
            
FLORIDA KEYS Native Status:
					
            			Native
	            	
					
					
				
              
IRC FLORIDA KEYS Status:
					
						Critically Imperiled
					
					
					
                                   
				
                                      
Map of Florida Keys Locations
                                    
				
          Florida Keys History and Distribution: First collected in 1834 or 1835 by Reverend Alva Bennett on the island of Key West.  Reported in  
1913 by John Kunkel Small for hammocks on the island of Key West.  We consider this native and extant from the upper Keys to the lower Keys.  For more information on this in the Florida Keys, see IRC's 
species account.