I am a plant, usually harmless and often used for decoration. Yet, if you are underneath me for too long, you won't tell the tale. What am I?

What is put in our drink; yet for bovine poor feed For pollution we think; that less plastic we need. It's a turtle's mistake; for this is their cancer. If befuddled this make; we grasp for this answer.

I become human if kissed, though how difficult this is, for I am slimy and green. Sometimes I blend in with trees.

My first is a sibling, one of four. If you’re allergic, I may make your nose sore. My second is a tool that can be condensed, But I can pop if you make me too tense. My third provides what all need to live. Find me in nature; I have plenty to give.

Something you put in your mouth, and a type of tree. Add a word to the end, you get footwear. Add a letter instead, it's part of your mouth. Reversed, it can contain a liquid.