Localities documented in Tropicos sources
United States (North America)
Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
Molecular Biology and Genetics
Statistics of barcoding coverage
|Specimen Records:||2||Public Records:||2|
|Specimens with Sequences:||2||Public Species:||2|
|Specimens with Barcodes:||2||Public BINs:||0|
|Species With Barcodes:||2|
Phoebanthus is a genus of flowering plants in the family Asteraceae. It includes two species of herbaceous perennials that are both endemic to the U.S. state of Florida. The genus is a close relative to Helianthus, the genus of the common sunflower, and the plants have the general appearance of a sunflower.
Phoebanthus is characterized by having a pappus of short scales that are usually persistent (don't fall off) compared to the pappus of two deciduous awns (and sometimes a few scales) in Helianthus, and Phoebanthus is also characterized by a distinctive type of slender, horizontal tuber that forms the perennating organ.
- Phoebanthus tenuifolius is a diploid that occurs in a relatively small area in the panhandle area of Florida, where it occurs in only 4 counties (Calhoun, Franklin, Gulf, and Liberty) and it is listed by the state as a "Threatened Species".
- Phoebanthus grandiflorus is a tetraploid that occurs in peninsular Florida where it has a somewhat broader distribution from Clay and Alachua counties in the north as far south as the area just north of Lake Okeechobee.
The relationship between the two species has never been closely analyzed, but it does not appear that P. grandiflorus is simply an autotetraploid of P. tenuifolius.