Herniaria glabra

This strange member of the dianthus family is best used as an evergreen groundcover that literally clings to the ground. Flowers? Get a magnifying glass! Herniaria is quite the utilitarian plant, as it has little, if any, ornamental value other than as a filler between stepping stones...great in well-drained acidic sites. You're just not going to be calling your gardening friends all excited about watching your rupturewort grow...just ain't happening. If your life is already far too exciting and stressful, and you're into things like mosses, perhaps rupturewort is just for you.