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                | Button snakeroot, Button rattlenakemaster
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                | Eryngium yuccifolium  
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                | Apiaceae 
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                | Landscape Uses:
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                |  | Primarily recommended for natural landscapes and habitat restorations.  Also wildflower gardens. |  
                | Ecological Restoration Notes: |  
                |  |  |  
                | Availability: |  
                |  | Widely available in central Florida. Available at native plant nurseries in northeast Florida. |  
                | Description: |  
                |  | Medium to large herbaceous wildflower. |  
                | Height: |  
                |  | About 1-2 feet in height; to 4 feet when in flower.  As broad as tall except when in flower. |  
                | Growth Rate: |  
                |  | Moderate. |  
                | Range: |  
                |  | Widespread in eastern and central North America west to Texas and south to Miami-Dade and Collier counties.  Presumed extirpated in Miami-Dade County.  Very rare or extirpated in Broward County; collected twice west of Deerfield Beach and last reported from the Indian Trace Water Management Basin in 1989. Not documented on barrier islands in South Florida, but possibly historically present; it grows well at Pan’s Garden in Palm Beach. |  
                | Habitats: |  
                |  | Wet pinelands. |  
                | Soils: |  
                |  | Wet to moist, seasonally inundated sandy or calcareous soils, without humus. |  
                | Nutritional Requirements: |  
                |  | Low; it grows in nutrient poor soils. |  
                | Salt Water Tolerance: |  
                |  | Low; does not tolerate flooding by salt or brackish water. |  
                | Salt Wind Tolerance: |  
                |  | Low; salt wind may burn the leaves. |  
                | Drought Tolerance: |  
                |  | Low; requires moist to wet soils and is intolerant of long periods of drought. |  
                | Light Requirements: |  
                |  | Full sun. |  
                | Flower Color: |  
                |  | Greenish. |  
                | Flower Characteristics: |  
                |  | Inconspicuous. |  
                | Flowering Season: |  
                |  | Summer. |  
                | Fruit: |  
                |  | A pair of inconspicuous carpels pendent from a supporting axis. |  
                | Wildlife and Ecology: |  
                |  | Attracts native bees and other beneficial insects. |  
                | Horticultural Notes: |  
                |  |  |  
                | Comments: |  
                |  | See also the Florida Wildflower Foundation's  Flower Friday page. |  |  | 
        
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                |  |  
                | Susan Lerner, cultivated at Pan's Garden, Town of Palm Beach, Florida, USA. |  
              
                |  |  
                | Susan Lerner, cultivated at Pan's Garden, Town of Palm Beach, Florida, USA. |  
              
                |  |  
                | Susan Lerner, cultivated at Pan's Garden, Town of Palm Beach, Florida, USA. |  |  |  |