|                    Wild-allamanda, Hammock viperstail
                      |  
              
                |                    Pentalinon luteum  
                      |  
              
                |                    Apocynaceae 
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                 Landscape Uses:
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                 Accent vine. | 
               
                Ecological Restoration Notes:  | 
               
              
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                | Availability: | 
               
              
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                 Available at native plant nurseries in central Florida. Available in Lake Worth at Amelia's SmartyPlants, Available in Key West at Key West Botanical Garden. | 
               
              
                | Description: | 
               
              
                |   | 
                 Clambering or twining woody vine with glossy leaves and attractive yellow flowers. | 
               
              
                | Height: | 
               
              
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                 N/A; vine with stems to 10 feet or more in length. | 
               
              
                | Growth Rate: | 
               
              
                |   | 
                 Moderate. | 
               
              
                | Range: | 
               
              
                |   | 
                 Monroe County Keys north to St. Lucie and Lee counties; the West Indies and the Bay Islands of Honduras. | 
               
              
                | Habitats: | 
               
              
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                 Pinelands, hammocks and coastal thickets. | 
               
              
                | Soils: | 
               
              
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                 Moist, well-drained to moderately well-drained sandy, limestone, or organic soils, with or without humusy top layer. | 
               
              
                | Nutritional Requirements: | 
               
              
                |   | 
                 Low; it grows in nutrient poor soils. | 
               
              
                | Salt Water Tolerance: | 
               
              
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                 Low; does not tolerate long-term flooding by salt or brackish water. | 
               
              
                | Salt Wind Tolerance: | 
               
              
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                 High; can tolerate moderate amounts of salt wind without significant injury. | 
               
              
                | Drought Tolerance: | 
               
              
                |   | 
                 High; does not require any supplemental water once established. | 
               
              
                | Light Requirements: | 
               
              
                |   | 
                 Full sun. | 
               
              
                | Flower Color: | 
               
              
                |   | 
                 Yellow. | 
               
              
                | Flower Characteristics: | 
               
              
                |   | 
                 Showy, about 2" wide. | 
               
              
                | Flowering Season: | 
               
              
                |   | 
                 All year; peak spring-summer. | 
               
              
                | Fruit: | 
               
              
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                 Two-parted pod of elongated, slender incurved follicles. | 
               
              
                | Wildlife and Ecology: | 
               
              
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                 Larval host plant for polka-dot wasp moths (Syntomeida epilais). | 
               
                     
                | Horticultural Notes: | 
               
              
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                | Comments: | 
               
              
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                 An attractive twining vine with glossy leaves.  The sap is poisonous if ingested, is irritating to the eyes and can cause a skin rash. | 
               
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