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Blackroot Pterocaulon pycnostachyum

Blackroot, also known as Rabbit Tobacco, is found in the southeastern states from North Carolina and Mississippi south to Florida.  It is a Florida native plant and found throughout most of the state.  Its preferred habitat is pine flatwoods and sandhills.

This plant is a perennial herb that grows to a height of about 2 feet.  It has thick black roots, hence its name.  It has lanceolate-shaped, alternate green leaves about 0.4 inch wide and up to 6 inches long.  The stems and underside of the leaves are covered with a thick, white layer of woolly hairs.  The flowers are creamy white and densely packed in cone-shaped, compact clusters along an erect or arching spike.  They bloom from spring through the fall.

The two photos on the left were taken in the Babcock-Webb WMA at the end of April, 2005.  The other two photos were taken in Deep Creek around the middle of June, 2017.  Both locations are in Charlotte County.


The range distribution maps for Blackroot are from the Plants Database of the U.S. Department of Agriculture (USDA).