About Ranunculus lobbii (Hiern) A.Gray
Ranunculus lobbii is a buttercup species in the family Ranunculaceae, commonly called Lobb's buttercup or Lobb's aquatic buttercup. It is native to scattered locations in western North America, with confirmed records from British Columbia, Oregon, and northern California. This species is an aquatic annual herb that grows in a range of shallow water habitats, including forest ponds and vernal pools. It produces submerged stems 20 to 80 centimeters long that may float at the water surface. The leaf blades on submerged portions of the plant are very small and split into thread-like segments. Leaves that grow on stem sections exposed to air have a very different structure, developing into larger, more robust leaves. Its flowers typically have five white petals around half a centimeter long. The center of the flower holds numerous stamens and pistils. The fruit it produces is an achene, arranged in a spherical cluster.
