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Burmarigold Bidens laevis

The Burmarigold, also known as the Smooth Beggartick, grows in low wet places such as marshes.  It is a late season bloomer, usually from late summer through fall.  It is a very attractive plant for insects, such as bees and butterflies.  This plant is native to South America, Mexico, and the southern and eastern United States.  It is a Florida native plant and found throughout most of the state.

This plant is considered an annual or perennial.  It grows to a height of 3-5 feet.  It often forms large colonies.  The plant can grow with submerged stems, but is sometimes found growing in floating mats with other vegetation.

The daisy-like yellow flower heads average about 2 inches wide.  Each head has 8 oval yellow petals (ray flowers) surrounding a brownish-yellow center (disk flowers).  The opposite leaves are sessile are about 2-5 inches long and 1 inch wide.  They are elliptic to lanceolate in shape and the edges are smooth or finely toothed.

The ‘Bur’ in the plant’s common name refers to the two elongated bristles found on the end of each seed.  The burs easily stick to clothes, feathers, or animal fur, which helps the plant to spread to new locations.

The above photos were taken at the Circle B Bar Reserve in Polk County near the end of November.

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