Question: Are Tabernaemontana and Caltha both genus of flowering plants ?
Sentence (from "Magnolia virginiana"): Magnolia virginiana, most commonly known as sweetbay magnolia, or merely sweetbay (also laurel magnolia, swampbay, swamp magnolia, whitebay, or beaver tree), is a member of the magnolia family, Magnoliaceae.
Relevant evidence: No