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Gulf graytwig, Graytwig
Schoepfia schreberi

Copyright by: Roger L. Hammer

General Landscape Uses: Primarily recommended for natural landscapes and habitat restorations.

Availability: Grown by enthusiasts.

Description: Large shrub or small tree with a narrow, irregular crown. Trunks to 18 inches in diameter, but usually much less. Bark light brown, deeply furrowed. Leaves thin, dark dull green, about 1-3 inches long.

Dimensions: Typically 10-20 feet in height. Usually about as broad as tall.

Growth Rate: Slow.

Range: Monroe County Keys and Collier County north along the east coast to Volusia County; Greater Antilles. Rare in the Monroe County Keys, and apparently absent to the west of Long Key. For a digitized image of Elbert Little's Florida range map, visit the Exploring Florida website.

Map of select IRC data from peninsular Florida.

Habitats: Hammocks.

Soils: Moist, well-drained sandy or limestone soils, with humusy top layer.

Nutritional Requirements: Moderate; can grow in nutrient poor soils, but needs some organic content to thrive.

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

Salt Wind Tolerance: Moderate; grows near salt water, but is protected from direct salt spray by other vegetation.

Drought Tolerance: Moderate; generally requires moist soils, but tolerant of short periods of drought once established.

Light Requirements: Light shade.

Flower Color: Crimson.

Flower Characteristics: Inconspicuous.

Flowering Season: All year; peak fall-spring.

Fruit: Red ovoid drupe ripening black.

Wildlife and Ecology: Parasitic on the roots of other trees, although it apparently does not significantly harm the host. Host for a native fruitfly (Anastrepha interrupta), which feeds on the fruits.

Horticultural Notes: Can be grown from seed.

Comments: A semi-parasitic plant that is extremely difficult to grow. Listed as endangered by the state of Florida.

Copyright by: Roger L. Hammer

Copyright by: Shirley Denton

Copyright by: Keith A. Bradley

Copyright by: Keith A. Bradley

Copyright by: Marcos A. Caraballo-Ortiz; Agrandar.

Copyright by: (public domain)
originally published in The journal of the Linnean society, Botany, vol. 17: t. 1 (1880) [J. Miers]

Other data on Schoepfia schreberi available from:

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