Rough hawkweed earns its name honestly. Every surface is covered in stiff hairs that give the plant a bristled, almost prickly feel — a texture that kept grazers at bay long enough for this native perennial to colonize the dry, sandy margins of eastern North America, from Georgia to Minnesota and north into Canada. The Roman naturalist Pliny believed hawks used the plant to sharpen their eyesight, which gave the entire genus its lasting common name. Whether or not the hawks agree, the yellow dandelion-like flowers are cheerful and persistent through late season, arriving when much of the native meadow is winding down.

This is a plant for difficult spots: dry, sandy soil, open woodland edges, rocky slopes, sunny roadsides. It spreads by rhizome into small colonies over time, filling in ground that little else will tolerate. Most wildlife find its bitter latex unappetizing, which works in its favor in deer-pressure gardens. Bees are the exception and visit the flowers reliably. Rough hawkweed will not win awards for showiness, but in a naturalized planting or prairie mix, its late-season gold and its remarkable adaptability to drought and lean soil make it a quietly valuable plant.