TY. I appreciate that, and repeated your searches to see the results. Found pages of garden plants, like Iris, daylilies, roses, and after scrolling through 3 pages between the 2 searches, found 4 plants. Not a viable way to peruse the database for plants for potted mini gardens. I don't think many people would want to scroll through 25 pages (that's 2500 plants?) to find the few appropriate ones.
Mini gardening is about using fairly ubiquitous species that are naturally miniscule and usually kept in pots, not elusive cultivars, chimeras or sports of inappropriate landscape entities. There is no 'regular, bigger version, plain species' of Crassula tetragona, for example. It is not a mini or dwarf version of anything, just a tiny plant.