Are Tabernaemontana and Caltha both genus of flowering plants ?
Tabernaemontana Tabernaemontana is a genus of flowering plants in the family Apocynaceae. It has a pan-tropical distribution, found in Asia, Africa, Australia, North America, South America, and a wide assortment of oceanic islands. These plants are shrubs and small trees growing to 1–15 m tall. The leaves are evergreen, opposite, 3–25 cm long, with milky sap; hence it is one of the diverse plant genera commonly called "milkwood". The flowers are fragrant, white, 1–5 cm in diameter.
Clitandra Clitandra is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1849. A total of 46 names have been coined since that time for species, subspecies, and varieties within the genus, but most of them have been transferred to other genera. The genus is currently regarded as containing only one species, Clitandra cymulosa, native to tropical Africa (from Sierra Leone to Tanzania, south to Angola).