👉 The term "pterostemonaceae" refers to a group of flowering plants that belong to the order Pteridiales. This group includes several genera and species, including the well-known species like the pterostemon (also known as the white thistle or the common thistle), which is a member of this family. The genus also contains other more specific species, such as the "pterostemon" (a type of thistle) and the "pterostoma" (