The Plantae kingdom is eukaryotic. This means that the cells of plants have a nucleus and other membrane-bound organelles. Unlike prokaryotic cells, which lack a nucleus and membrane-bound organelles, eukaryotic cells are more complex and organized.
Plants, as part of the Plantae kingdom, have cells with a true nucleus that contains their genetic material. They also have other specialized structures such as chloroplasts, which are responsible for photosynthesis, and a cell wall made of cellulose. These features are characteristic of eukaryotic cells.
In summary, the Plantae kingdom is composed of eukaryotic organisms, which distinguishes them from prokaryotic organisms like bacteria and archaea.