These maps have been really useful for me, especially running frantically from zone to zone trying to max my gains with both botany and mining. It's a lot to remember, and the visual cue helps me get there faster.

I still recommend www.ffxivclock.com to keep track of specific nodes. You can set up alarm timers for specific nodes, it also lists what region and slot the item you are looking for is in. It does not list ephemeral nodes, but all Unspoiled and (I think) Legendary nodes are on it. You are definitely going to want to set up a Focus list for your gathering session instead of just letting it run as there are SO many nodes to track now. Being on PS4 I personally prefer the phone app (by the same name) that gives me notifications when the node I want spawns.

This macro is handy to have, it will pop the full list into your chat log (only to your view) so that you can see what ephemeral node zones are available when you are ready to gather:
/echo [12a-4a] BTN West | MIN –-
/echo [4a–-8a] BTN Hint | MIN Fore
/echo [8a-12p] BTN Fore | MIN Hint
/echo [12p-4p] BTN –––- | MIN Churn
/echo [4p–-8p] BTN Churn | MIN Sea
/echo [8p-12a] BTN Sea | MIN West

Maps and macro are both by Reddit user SeraviEdalborez