The teacher is talking about Kingdom plantae
The kingdom Plantae includes all eukaryotic, multicellular chlorophyll- containg organism commonly called plants. Plants are mainly autotrophic but a few members are partially heterotrophic such as the insectivorous plants or parasites. The plant cells have an eukaryotic structure with prominent chloroplasts and cell wall mainly made of cellulose. Plantae includes algae, bryophytes, pteridophytes, gymnosperms and angiosperms.