|Spreading and low-growing, this perennial reaches 18 inches tall and spreads to 24 inches. Grayish-green leaves are oblong, pinnatifid and borne on many branches. Flowerheads form corymbs 4 to 8 inches across in lemony-yellow. This heat and drought tolerant perennial has a fiberous root system and can become invasive. Divide to maintain. Butterflies are attracted to this plant. Good cut flower that dries well, too.