The classification of the plant kingdom is constantly being updated.
Tips
usage
Biological taxonomy term. 界 (jiè) is the rank “kingdom.” The full set: 动物界 (Animalia), 植物界 (Plantae), 真菌界 (Fungi), 原生生物界 (Protista), 原核生物界 (Monera). Don't confuse with the colloquial sense of 界 = “world / circles” (e.g. 娱乐界, entertainment industry).
