- Yas giant tree Amargal DW Ms
- Yellow black bird Rio Claro
- Yellow black bird Rio Claro
- yellow edged crust fungus
- yellow edged crust fungus detail
- yellow Pluteus sp. growing in Charguayaco near Pitalito, Huila
- Yellow-green Earth tongues that stain blue!
- Yogi roadside DW Ms
- young leaves of Adiantum macrophyllum - Largeleaf Maidenhair fern seen near Yopal
- young Leucocoprinus sp. in Isla Escondida, Putumayo
- young Mycena acicula or something close to it seen in Raquira, Boyoca
- Young Paxillus sp. encountered in Chivor forest above Santa Maria
- young Phillipsia rugospora
- young Pulveroboletus in Genekha
- Zandok Palri temple Kawalungri DW Ms
- Zingiber spectabile, Bee hive Ginger