Ouachita Mountains Shale Glade, Middle Fork Barrens Natural Area, Saline Co., Arkansas

Ouachita Mountains Seasonally Wet Shale Glade, Middle Fork Barrens Natural Area, Saline Co., Arkansas

Ouachita Mountains Seasonally Wet Shale Glade, Middle Fork Barrens Natural Area, Saline Co., Arkansas

Ouachita Mountains Shale Barren, Middle-Fork Barrens Natural Area, Saline Co., Arkansas

Ouachita Mountains Shale Barren, Middle-Fork Barrens Natural Area, Saline Co., Arkansas

Ouachita Mountains Shale Glade, Arkansas

Ouachita Mountains Shale Barren & Woodland, Arkansas

Ouachita Mountains Shale Seepage Glade, Middle-Fork Barrens Natural Area, Saline Co., Arkansas

Ouachita Mountains Shale Glade and Woodland, Middle-Fork Barrens Natural Area, Saline Co., Arkansas

Ouachita Mountains Shale Seepage Glade, Middle-Fork Barrens Natural Area, Saline Co., Arkansas

Ouachita Mountains Shale Glade & Woodland, Arkansas

Ouachita Mountains Shale Glade & Woodland, Arkansas

Ouachita Mountains Shale Barren & Woodland, above Rolling Fork River, Sevier Co., Arkansas

Infrared image showing location of Ouachita Mountains Shale Glades & Barrens (bright spots), Arkansas

New species of fameflower (Phemeranthus aff. calycinus), Ouachita Mountains Shale Glade, Middle Fork Barrens Natural Area, Saline Co., Arkansas. Under study by Theo Witsell.

Undescribed species of fameflower (Phemeranthus sp. nov.) thought to be endemic to shale glades of the Ouachita Mountains of Arkansas. Under study by Theo Witsell.

Sabatia arkansana (Pelton's Rose Gentian occurs in just two places worldwide in Arkansas.

Ouachita Mountains Sandstone Barren & Woodland, above South Fourche La Fave River, Ouachita National Forest, Perry Co., Arkansas

Ouachita Mountains Novaculite Barren, Arkansas

Ouachita Mountains Sandstone Riverscour Barren, South Fourche La Fave River, Perry Co., Arkansas

Ouachita Mountains Shortleaf Pine-Bluestem Woodland, Arkansas

Ouachita Mountains Post Oak Savanna, Camp Robinson State Wildlife Management Area, Faulkner Co., Arkansas