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.
Cirsium fontinale Cirsium fontinale or fountain thistle is a flowering perennial herb in the sunflower family. It is endemic to California. The "Cirsium" genus is commonly known as the "thistle" genus, "Cirsium" being the Greek word for 'thistle.'