Saltmarsh cordgrass, Smooth cordgrass
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Spartina alterniflora var. glabra
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Poaceae
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Landscape Uses:
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Primarily recommended for natural landscapes and habitat restorations. |
Ecological Restoration Notes: |
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Utilized as a water and substrate stabilizer in tidal swamp restorations in South Florida. Natural populations are very rare. |
Availability: |
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Grown by one or two native plant nurseries in South Florida. |
Description: |
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Medium herbaceous grass. |
Height: |
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Emergent 1-2 feet above the water. Spreading from underground stems (rhizomes) and forming patches much broader than tall. |
Growth Rate: |
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Moderate. |
Range: |
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Widespread along the eastern coastline of North American west to Texas and south to Miami-Dade County and the Monroe County mainland; northeastern coast of South America. Very rare in South Florida. Perhaps never naturally present or natural populations extirpated in Broward County; now cultivated there. Reported in error for the Monroe County Keys. |
Habitats: |
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Coastal marshes. |
Soils: |
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Wet, inundated brackish or saline soils. |
Nutritional Requirements: |
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High; requires rich organic soils for optimal growth. |
Salt Water Tolerance: |
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High; tolerates flooding by salt water. |
Salt Wind Tolerance: |
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Moderate; grows near salt water, but is protected from direct salt spray by other vegetation. |
Drought Tolerance: |
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Low; requires moist to wet soils and is intolerant of long periods of drought. |
Light Requirements: |
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Full sun. |
Flower Color: |
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Brownish inflorescence. |
Flower Characteristics: |
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Inconspicuous. |
Flowering Season: |
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Summer-fall. |
Fruit: |
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Inconspicuous caryopsis. |
Wildlife and Ecology: |
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Larval host plant for Aaron's skipper (Poanes aaroni). |
Horticultural Notes: |
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Can be grown from division, and by seed with difficulty. |
Comments: |
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Imperiled and sporadic in South Florida, perhaps due to widespread modifications to coastal hydrology |
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