Cutleaf Coneflower (Rudbeckia laciniata)

Cutleaf Coneflower (Rudbeckia laciniata)

Along riverwalks and roadside ditches, cutleaf coneflower becomes part of the background in late summer, rising in tall, loose colonies wherever the soil stays moist. People pass it every day without thinking much about it, yet those stands feed late‑season pollinators, steady wet ground, and fill disturbed edges with a native plant that belongs there. Its height, its bright reflexed rays, and its habit of leaning toward open light make it one of those wildflowers most folks recognize even if they don’t know its name.

Cutleaf coneflower is a native perennial found across Wisconsin, resembling a sunflower in form and stature. Its branched, leafy stalks reach five to eight feet, topped by stemmed yellow blooms. Each flower spans two to three inches, with greenish‑yellow cones surrounded by six to twelve rays that tilt backward. This species plays an important late‑season role, offering nectar and pollen when few other sources remain, and serves as a host plant for insects such as the silvery checkerspot butterfly, wavy‑lined emerald moth, and common pug moth.

The foliage varies along the stem: basal and lower leaves stretch up to ten inches and show three to seven toothed lobes, while the upper leaves are smaller, smoother, and often unlobed. Thriving in moist, rich soils, cutleaf coneflower spreads by slow‑moving rhizomes and grows well in full sun to partial shade. You’ll find it in low prairies, wet meadows, ditches, and open fields, especially where the soil stays evenly moist through summer.

Sources:

Prairie Moon Nursery — Rudbeckia laciniata

Illinois Wildflowers — Cutleaf Coneflower

USDA Plants Database — Rudbeckia laciniata Profile

Lady Bird Johnson Wildflower Center — Rudbeckia laciniata Species Details

Wisconsin State Herbarium — Rudbeckia laciniata Collection Notes

(SF)