How do I select all coplanar vertices? I'm trying to use a Wireframe modifier on a Geodesic Dome shape made of hexagons. When I added the shape, it included vertices in the centers of all the hexagons, which don't show up in Object mode because they're coplanar with the surrounding vertices.

They are affecting the Wireframe modifier, though. How can I easily select them all so I can dissolve them?
Apparently you can just use Limited Dissolve for this (removing them, not selecting them).