Forum:Once per turn effects?

I am not quite sure how to prepare the page, so please forgive the errors and if you could let me know how to fix the ones i have made.

I was wondering if someone could please explain Once per turn effects to me. Do they only apply to that specific card for like multiple Gigaplants? Also, does the once per turn reset like if you used Lonefire Blossom to special summon Gigaplant. Than equip Supervise to it and use its effect to special summon Lonefire Blossom. Is Lonefire Blossom's effect allowed to be activated again?