Sap
Ash, Oak, Yew, Elm, are four I can think of.
Seagram Seven Crown Whiskey is a liquid. It begins with the letter S.
That would be a juniper tree.
Juniper
A Mangrove tree! (Man-grov) not mongrovemaple mangoe
oil, gin
ElmOak
There isn't one that begins with an 'S' A three letter word for an evergreen tree is fir.
dry
nut
...
Yew (which is a kind of tree).
It could be rot.
Sap is the word your looking for.
Oak
Ash, elm and fig are three letter tree names. Additional trees include fir and oak.
A nut comes from a tree and so does sap.