Color, a deep satiny yellow. Flowers, 1 inch across. The petals, 5, 6, or 7, are round and open widely. Sepals, turn back. Leaves, mostly from the root, 3-divided, on long petioles. The terminal lobe has a stalk; the two side divisions are sessile, all much cleft and toothed. Stem-leaves small, somewhat cut. Stem, erect, 6 to 18 inches high, hairy, expanding at the base into a bulbous shape. May to July.