Plants — Z
- Zaluzania triloba
- Zanthoxylum americanum American prickly-ash
- Zanthoxylum armatum
- Zanthoxylum bungeanum Sichuan Pepper
- Zanthoxylum limonella
- Zanthoxylum nitidum shiny-leaf prickly-ash
- Zanthoxylum piperitum Chopi (Korean pepper)
- Zanthoxylum rhetsa Cape yellowwood
- Zea mays maize
- Zephyranthes minuta Flower Of The West Wind
- Zeuxine strateumatica lawn orchid
- Zingiber Ginger
- Zingiber cassumunar
- Zingiber mioga Japanese ginger
- Zingiber officinale ginger
- Zingiber ottensii
- Zingiber spectabile Beehive Ginger
- Zingiber zerumbet Bitter ginger
- Ziziphus jujuba Chinese jujube
- Ziziphus mauritiana Buffalo Thorn
- Zornia latifolia
- Zygophyllum fabago Syrian Bean-caper