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Blackroot
Pterocaulon pycnostachyum
Asteraceae
 

Copyright by: Roger L. Hammer

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

Availability: Grown by enthusiasts.

Description: Medium herbaceous wildflower.

Dimensions: About 1-2 feet in height. About as broad as tall.

Growth Rate: Moderate.

Range: Southeastern United States west to Texas and south to the Monroe County Keys; West Indies. In the Monroe County Keys, disjunct from Miami-Dade County to the pine rocklands of Big Pine Key.

Map of select IRC data from peninsular Florida.

Habitats: Pinelands.

Soils: Moist, well-drained sandy or limestone 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: High; does not require any supplemental water once established.

Light Requirements: Full sun.

Flower Color: White.

Flower Characteristics: Showy.

Flowering Season: Spring-fall.

Fruit: Inconspicuous achene.


Copyright by: Roger L. Hammer

Copyright by: James Johnson, 2014
In habitat, Miramar Pineland Natural Area,
Broward County, Florida

Copyright by: Shirley Denton

Copyright by: Shirley Denton

Copyright by: Shirley Denton

Copyright by: Shirley Denton


Other data on Pterocaulon pycnostachyum available from:



 
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