Saving my thoughts!

At this moment, I'm looking at information on native North American flowering trees. I'm looking at edge and understory trees, and I don't want to forget about Halesia tetraptera var. monticola (Mountain Silverbell), Philadelphus lewisii (Lewis' Mock Orange), Cornus florida 'Appalachian Spring' (Flowering Dogwood), or Franklinia alatamaha. I'm also curious about Cercis canadensis (Eastern Redbud). I have not yet researched Malus ioensis (Prairie Crabapple), Malus coronaria (Sweet Crabapple), or any hawthorn varieties.

I want to remember to look up information on azaleas, Rhododendrons, poppies, columbines, and hollyhocks.