Blanche Nettles Powers is obsessed with Spanish moss. Since childhood, the Georgia-based artist has been entranced by the wispy plant Tillandsia usneoides, which hangs on cypress and live oak trees throughout the South. For her latest series of drawings, the Savannah native collected moss and studied it, searching for its essence—and perhaps the essence of the Southern subconscious. The resulting works, executed in spray paint and wax pencil on cotton paper, look like X-rays of the stuff. Glowing and ghostly, the images feel like visual evocations of Southern Gothic literature. At the very least, they capture the strange plant’s ethereal power. At Kim Foster Gallery, 529 W. 20th St., New York, (212) 229-0044. Prices range from $1,500 to $3,800.