From: Medicinal plants in the southern region of the State of Nuevo León, México
Age
Number of species
Number of uses
45
4
5
48
20
23
55
54
95
67
60
13
16
64
33
38
72
31
34
74
39
77
90
19
r s = 0.09, α = 0.05
r s = 0.1 α = 0.05