For bug-eating plants, yes. Remember the one the ate a cockroach? Here is a picture of a new, tender, little leaf that I plucked from one of those plants.

Other plants that use normal dirt, can be done too but you need to cut the stem and apply "rooting hormone" to the freshly cut stem. This has worked for me with celery, lettuce, cabbage, this vine, bamboo, and my pot plants. It doesn't hurt to try it with any plant. FYI - tomato plants - cut the top 3-4 leaves off with an inch of stem below them, stick it in the ground. It always works (no direct sunlight for a couple weeks).