The floral organs of Ranunculales greatly vary in form, size, color, and modes of pollination.
Ranunculaceae flowers are considered simple because the morphology of the floral parts is characterized by having unspecified numbers. Furthermore, the petals, sepals, stamen, and pistil are separated individually and attached below the ovary (superior). Buttercups lack a floral pattern. Some species are regular; others are irregular.
Most members are bisexual. Petals are 0-23[7] and are often colorful. Buttercups have many simple pistils at the flower’s center instead of the advanced plant families having only a single pistil. Some buttercup species also have hooked tips on the pistils.
The barberry flowers are bisexual and radially symmetrical. The flowers can be clustered, forming branching inflorescence or solitary. The ovary is superior with 1 carpel and 6 stamens. Members have 6-9 petals and 4-6 petaloid sepals.
The showy flowers of Papaveraceae are either solitary or organized in a branching array. The flowers can be radially or bilaterally symmetrical. Petals of the poppy family are 4 or more, and sepals are 2 or 3. The lobed stigma can have 0-1 style, and the stamens are 6 or more. The seeds are dry capsules having many seeds.
Menispermaceae flowers are frequently minute and never showy. Color is greenish, white, or cream with axillary or terminal inflorescence in fascicles, cymes, racemes, or panicles. The ovary is superior, and the perianth is attached below the gynoecium with segments distinct or fused. There are usually 6 sepals and 0 or 6 petals.
Pollination in Ranunculales[8] is diverse. Insect pollination is considered ancestral to this order. However, the nectar from the flowers of some species invites diverse pollinators. The bumblebees pollinate most species, but pollination by hawkmoth also occurs to some degree. Furthermore, hummingbirds are also considered pollinators.
Additionally, flowers without perianth with long anthers rich with pollen are wind-pollinated[9]. On the other hand, fly-pollination[10] occurs to nectar-producing Ranunculales species having small flowers with petals.
