this are some area possible to find the leaf, enjoy
| NATURE | Possible Routes to Find Leaf |
o-----------------------------------------------------o
| Adamant | Route 9, 15, 22, 24, 37, 42 and 46 |
| Bashful | Route 10, 16, 27, 38 and 43 |
| Bold | Route 10, 16, 27, 38 and 43 |
| Brave | Route 9, 15, 22, 24, 37, 42 and 46 |
| Calm | Route 2, 4, 6, 28, 32, 34, and 48 |
| Careful | Route 7, 8, 13, 14, 33, 36 and 45 |
| Docile | Route 7, 8, 13, 14, 33, 36 and 45 |
| Gentle | Route 2, 4, 6, 28, 32, 34, and 48 |
| Hardy | Route 10, 16, 27, 38 and 43 |
| Hasty | Route 11, 18, 26, 39 and 44 |
| Impish | Route 1, 3, 5, 31, 34 and 47 |
| Jolly | Route 1, 3, 5, 31, 34 and 47 |
| Lax | Route 2, 4, 6, 28, 32, 34, and 48 |
| Lonely | Route 10, 16, 27, 38 and 43 |
| Mild | Route 11, 18, 26, 39 and 44 |
| Modest | Route 7, 8, 14, 33, 36 and 45 |
| Naive | Route 1, 3, 5, 31, 34 and 47 |
| Naughty | Route 1, 3, 5, 31, 34 and 47 |
| Quiet | Route 7, 8, 13, 14, 33, 36 and 45 |
| Quirky | Route 11, 18, 26, 39 and 44 |
| Rash | Route 11, 18, 26, 39 and 44 |
| Relaxed | Route 2, 4, 6, 28, 32, 34, and 48 |
| Sassy | Route 1, 3, 5, 31, 34 and 47 |
| Serious | Route 13, 14, 33, 34, 36 and 45 |
| Timid | Route 10, 16, 27, 38 and 43 |
o-----------------------------------------------------o
got it somewhere, so, credit goes to whoever make this :)