Zanthoxylum ailanthoides
Zanthoxylum alatum var. planispinum
Zanthoxylum americanum
Zanthoxylum simulans
Zelkova carpinifolia
Zelkova serrata
Zelkova serrata 'Goblin'
Zelkova serrata 'Green Vase'
Zelkova serrata 'Urban Ruby'
Zelkova serrata 'Variegata'
Zelkova sinica
Zenobia pulverulenta 'Blue Sky'
Ziziphus jujuba