Ranunculus L. >
Petals yellow. Leaves sometimes divided into linear segments but then 1 mm wide or more and arranged in one plane only Ranunculus
Leaves lobed or deeply dissected
Sepals not reflexed, 5 or more
Achenes covered with spiny tubercles
Slender, hairy annuals. Leaves 5–20 mm long, with slender petioles. Flowers almost sessile or on a slender peduncle opposite the leaf. Petals pale yellow, 2–3 mm long. Achene tuberculate, 2 mm long, with a short beak or with a short hooked spine and a curved beak. Coast and Cumberland Plain. Uncommon Ranunculus sessiliflorussessiliflorus