- LIFE SCIENCES
- behaviour and psychology
- biology
- ecology
- organisms
- organisms, by non-taxonomic groups
- organisms, taxonomically arranged
- animals
- fungi
- organisms by alternative taxonomic schemes
- organisms of uncertain taxonomy
- plants
- algae
- Bryophyta
- lichens
- Pteridophyta
- angiosperms
- dicotyledons
- monocotyledons
- Alismatales
- Arales
- Arecales
- Bromeliales
- Commelinales
- Cyclanthales
- Cyperales
- Eriocaulales
- Hydrocharitales
- Juncales
- Liliales
- Agavaceae
- Agave
- Agave amaniensis
- Agave americana
- Agave angustifolia
- Agave attenuata
- Agave aurea
- Agave avellanidens
- Agave brachystachys
- Agave cantala
- Agave cocui
- Agave deserti
- Agave ellemeetiana
- Agave falcata
- Agave fourcroydes
- Agave funkiana
- Agave ghiesbreghtii
- Agave goldmaniana
- Agave haynaldii
- Agave lechuguilla
- Agave letonae
- Agave parrasana
- Agave parryi
- Agave rigida
- Agave rigidissima
- Agave salmiana
- Agave shawii
- Agave sisalana
- Agave tequilana
- Agave univittata
- Agave utahensis
- Agave vera-cruz
- Agave virginica
- Agave wrightii
- Beschorneria
- Cordyline
- Dasylirion
- Dracaena
- Furcraea
- Hesperaloe
- Nolina
- Phormium
- Polianthes
- Prochnyanthes
- Sansevieria
- Yucca
- Agave
- Alliaceae
- Alstroemeriaceae
- Amaryllidaceae
- Dioscoreaceae
- Haemodoraceae
- Hypoxidaceae
- Iridaceae
- Liliaceae
- Pontederiaceae
- Ruscaceae
- Smilacaceae
- Stemonaceae
- Taccaceae
- Trilliaceae
- Velloziaceae
- Agavaceae
- Najadales
- Orchidales
- Pandanales
- Typhales
- Zingiberales
- Equisetopsida
- ferns
- Lycopsida
- angiosperms
- Spermatophyta
- prions
- prokaryotes
- viruses
