Sabtu, 15 November 2014

A few Southeastern Coastal Plain endemics



Shiny Woodoats (Chasmanthium nitidum)
Wet hardwood hammock,
limestone close to surface
St. Marks NWR, July 2014 

Probably the rarest Woodoats grass or Chasmanthium species in North America, the natural range of Shiny Woodoats (Chasmanthium nitidum) is almost entirely found in Florida. The grass barely finds its way into NC where it is considered threatened, being known only from Pender County. 

Chasmanthium latifolium;
the most widespread member of the genus


Scareweed (Baptisia simplicifolia)
Pine Flatwoods, regularly burned
St. Marks NWR, July 2014

One of the Wild Indigos,  or sometimes called "Scareweed", Baptisia simplicifolia is a narrow endemic confined to a couple counties in north Florida's panhandle.

Limited to open pinelands, this is one of the many fire-adapted species found in longleaf pine flatwoods. At the end of the growing season, stems break off above ground and the plant blows around like tumbleweed, helping to distribute seeds still found in the capsules. The vast majority of the world's population is found on the Apalachicola National Forest.




   

Eurybia eryngiifolia 
Apalachicola National Forest
July 2014
Bristly heads and leaves of Eurybia eryngiifolia
                                                                                                                     












Thistle-leaved Aster (Eurybia eryngiifolia) is nearly endemic to the Florida panhandle, just barely extending into adjacent Georgia & Alabama. It is another pine flatwoods & fire-adapted species, closely associated with longleaf pine.  The scientific epithet (eryngiifolia) is a clear reference to the vegetative similarity to Rattlesnake Master (Eryngium yuccifolium)


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