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.
Tabernaemontana stapfiana Tabernaemontana stapfiana (commonly known as soccerball fruit) is a medium-sized tree in the family Apocynaceae. Its flowers feature white with yellow-throated corolla lobes. The fruit is fleshy grey-green, in pairs, each up to 20 cm in diameter and weighing up to several kilograms. Its habitat is montane evergreen forests from 700 – altitude. The plant is native to countries from Uganda south to Mozambique.