American groundnut, Apios americana, plant photo by Robin Buell

Jerusalem artichoke, Helianthus tuberosus, plant, photo by Chenxin Li

Common bean, Phaseolus vulgaris, plant displaying leaves, pods, and flowers, photo by Chenxin Li

Catharanthus roseus flower, photo by Chenxin Li

Nasturtium, Tropaeolum majus, flower

Foxglove, Digitalis purpurea, flowers, photo by Chenxin Li

Red Dahlia flower, photo by Chenxin Li

Camptotheca accuminata tree, photo by Chenxin Li

Potato, Solanum tuberosum, flowers, photo by Brieanne