Selaginella lepidophylla 'Resurrection Plant' is a highly unique and unusual plant to add to your collection. If you're looking for a plant that is highly indestructible, this is it! These plants have evolved to go through dormancy periods where they close up into a ball. They can last about 7 years without water before dying! When given water, they open right back up.
In terms of care they are relatively simple. Since this plant has evolved to being so drought tolerant, they don't do well if they're left to just sit in water. You can give it water once in a while, but allow them to go through some rest periods. They love to be misted and appreciate any extra humidity!