Here is the full list of all 16 LEAVES - there are The Journey achievements.
Used the Travelstone 3 times
Shooed away the armadillo 3 times
Set the clock
Found 5 inhabitants
Opened the portal
Found the magnifier
Vanquished the monster
Upset the Treefruities
Didn't need any help
Found 10 inhabitants
Found 15 inhabitants
Played the game without interruption
Waited for the poison to wear off
Opened 3 doors in Eggtown
Set the masks correctly
Opened the Heaven's Gate