Early May in an Appalachian forest.From top: sweet white violet (Viola blanda); long-spurred violet

Early May in an Appalachian forest.

From top: sweet white violet (Viola blanda); long-spurred violet (Viola rostrata); broadleaf toothwort (Cardamine diphylla); wake robin (Trillium erectum), also known as red or purple trillium; heartleaf foamflower (Tiarella cordifolia); smooth Solomon’s seal (Polygonatum biflorum); and wood anemone (Anemone quinquefolia), also known as nightcaps.