The first report of Azolla filiculoides in Virginia provides a key for distinguishing this species from Azolla caroliniana.

Geum geniculatum (Rosaceae), bent avens, is a perennial herb restricted to the high elevations of three mountaintops near the North Carolina/Tennessee border (USA). Although geographically

Soldiers Delight Natural Environment Area and Wildlands, a biodiversity hotspot in the Maryland piedmont, conserves an endangered serpentine oak savanna (“barren”) ecosystem with numerous rare,