All trees have incorporated an initial movement into their trunks and some of them are styled more - all of them are nice starters to become bonsai.
Front row left to right:
Myrt (Myrthus) - white flowers in summer
Trident maple (Acer buergerianum)
Ponderosa pine (Pinus ponderosa)
Birch (Betula lenta)
Back row left to right:
Russian olive (Elaeagnus umbellata) - white flowers in April, red berries in winter
Ornamental pear (Pyrus) - white flowers in March
Live oak (Quercus virginiana)
American wisteria (Wisteria frutescens) - purple-blue flowers in April/May