Tune: Performed by: Crowded House?

Questions

Common name for a family of herbaceous flowering plants?

Common name for a family of mostly herbaceous flowering plants, & for its representative genus?

Common name for a family of woody or herbaceous flowering plants of worldwide distribution, & for its well-known genus?

Common name for a genus of about 40 species of coniferous trees, indigenous to the northern hemisphere, nearly half being natives of North America?

Common name for a genus of perennial flowers of the buttercup family?