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Wild-allamanda, Hammock viperstail
Pentalinon luteum

Copyright by: Roger L. Hammer

General Landscape Uses: Accent vine.

Availability: Native plant nurseries.

Description: Clambering or twining woody vine with glossy leaves and attractive yellow flowers.

Dimensions: 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.

Map of select IRC data from peninsular Florida.

Habitats: Pinelands, hammocks and coastal thickets.

Soils: 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: Low; does not tolerate long-term flooding by salt or brackish water.

Salt Wind Tolerance: High; can tolerate moderate amounts of salt wind without 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: Two-parted pod of elongated, slender incurved follicles.

Wildlife and Ecology: Larval host plant for polka-dot (Syntomeida epilais) wasp moths.

Comments: An attractive twining vine with glossy leaves. The sap is poisonous if ingested, is irritating to the eyes and can cause a skin rash.

Copyright by: Roger L. Hammer

Copyright by: Shirley Denton

Copyright by: Shirley Denton

Other data on Pentalinon luteum available from:

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