there is a Weekly Update (26/12/2013) -
SAP!
Sap Tree
Cost: 4000 Coins
info: Water to grow into a Sap tree. Low chance of dropping Sap.
Tend Before Grown: 5 Times
Times to Use: 6
Regen / Tend Time: Tend Time: 3 Minutes
Size: 2x2
Resources / Drops: Sap, Wood, Living Wood (when chopped down)
Note: Works like the fruit trees! grow it and then chopped it down to get Sap.
Weekly Updates List - check it!
Important Note:
The descriptions for the trees say "high chance" and "low chance" of dropping sap,
but TL states that BOTH trees have a 100% drop rate for sap.
The descriptions are errors that will be fixed later.