floristic
flɒˈrɪstɪk
Definitions
1. adjective
relating to or characteristic of plants, especially in their distribution and variety in a particular region or period of time
“The floristic diversity of the rainforest was a key factor in its preservation efforts.”
2. noun
a floristic region or area, especially one characterized by a particular type of vegetation or flora
“The floristic zone of the mountain was home to many rare and endangered species.”