International Plant Name Index

https://powo.science.kew.org/
https://www.ipni.org/

Alocasia

https://www.aroidpedia.com/alocasia

Amorphophallus

https://www.aroidpedia.com/amorphophallus

Bromeliads

https://www.llifle.com/Encyclopedia/BROMELIADS/

Cacti

https://www.llifle.com/Encyclopedia/CACTI/

Calathea

https://www.houseplants.xyz/genus/calathea-goeppertia

Ctenanthe

https://www.houseplants.xyz/genus/ctenanthe

Hibiscus

https://internationalhibiscussociety.org/searchive/index

Hoya

https://vermonthoyas.com/hoya-cultivars/

Maranta

https://www.houseplants.xyz/genus/maranta

Peperomia

https://www.houseplants.xyz/genus/peperomia

Pilea

https://www.houseplants.xyz/genus/pilea

Succulents

https://www.llifle.com/Encyclopedia/SUCCULENTS/

Tradescantia

https://tradescantia.uk/checklist/