floristics composition区系成分
digital floristics数字植物区系学
quantitative floristics定量区系学
floristics characteristics区系特征
studies on floristics in china中国植物区系研究
floristics of families or genera科属区系地理学
N（名词） the branch of botany concerned with the types, numbers, and distribution of plant species in a particular area 植物种类地理学