Have a look at the alien plants.

Serris decided to look around at what kind of plant life were on very different planets. She never really visited nonhuman planets, but she had a soft spot for flora of all kinds. She wandered around the garden, changing course when things got too familiar. It took some willpower not to touch anything or take a good smell of the flowers. She knew that she just might have an allergic reaction to alien substances.

While she wandered, she drifted in a certain direction. At first towards the earth plants, but she was interested in the more exotic breeds and turned to the side when she saw them. It was like something was tugging a leash tethered to her subconscious. She always ended up heading the same way.

She wandered her way around the earth flora, heading straight to something she felt was beckoning. She was almost in a trance for a while, snapping out of it when she felt a tug around her ankle.

She was staring into a pit. Of sorts. There were leaves or petals surrounding it, and there was a faint gurgling echoing from within. Her mind was clouded, she was only half-aware that she should be afraid right now. She saw a second tendril come from the pit and reach for her. Neither the grip or the pull from them was really enough to budge her, she could get away easily enough. If she decided to.

Some primal part of her recognized a cavernous mouth that wanted to eat her, but another part of her found the hole alluring. She was becoming excited and breathing heavily, consequently inhaling more intoxicating pheromones. A sliver of her thinking mind was still awake, ready to make a decision.