Green antelopehorn
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Asclepias viridis
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Apocynaceae
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Landscape Uses:
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Primarily recommended for natural landscapes and habitat restorations. Also butterfly gardens. |
Ecological Restoration Notes: |
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A somewhat rare understory herb in pine rocklands. |
Availability: |
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Rarely grown by native plant nurseries. |
Description: |
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Small to medium herb with erect or sprawling stems and oblong leaves. |
Height: |
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About 6-24 inches in height. Taller than broad, but then falling over and spreading. |
Growth Rate: |
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Moderate. |
Range: |
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Eastern and central United States west to Texas and south to central Florida; disjunct in Miami-Dade County and the Monroe County Keys. In the Monroe County Keys, disjunct from Miami-Dade County to the pine rocklands of Big Pine Key, where very rare. |
Habitats: |
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Pine rocklands. |
Soils: |
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Moist, well-drained limestone soils, without humus. |
Nutritional Requirements: |
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Low; it grows in nutrient poor soils. |
Salt Water Tolerance: |
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Low; does not tolerate flooding by salt or brackish 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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High; does not require any supplemental water once established. |
Light Requirements: |
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Full sun. |
Flower Color: |
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Green with purple hoods. |
Flower Characteristics: |
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Showy, about 1/2" wide. |
Flowering Season: |
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Winter-summer; peak spring. |
Fruit: |
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Pod (follicle) with wind dispersed seeds, wide at the base and tapering toward the tip. |
Wildlife and Ecology: |
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Larval host plant for monarch (Danaus plexippus) and queen (Danaus gilippus) butterflies; possible larval host for soldier (Danaus eresimus) butterflies. Nectar plant for monarch butterflies. Attracts native bees and other beneficial insects. |
Horticultural Notes: |
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Can be grown from seed. |
Comments: |
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The plant is poisonous to livestock. See also the Florida Wildflower Foundation's Flower Friday page and Monarchs & Milkweed flyer.
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Lilly Anderson-Messec via her Instagram account @lilliumbyrd.
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Lilly Anderson-Messec via her Instagram account @lilliumbyrd.
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