The minimum size of the search string is 5 characters. A part of the name can be used. If one or more results are returned from the database, they'll be displayed in a small windowunder the search window.
The search on taxonomic level is done on a kingdom, phylum, class, order or family.
The search on species is only among the genus and species levels. The syntax must respect the mandatory uppercase for the genus names. The sub-genus are identified by a space between the species and the sub-species names, and the varieties and forms by respectively ' v ',' var ' or ' f ' (pay attention to spaces) before their names.
Disclaimer
The structure of this species list taxonomical tree is taken from the Catalogue of Life in the species 2000 Database. It is a standardized pratical tool in inventoring and monitoring biodiversity worldwide. It doesn't aim at making phylogeny or taxonomy.
Plantae - Magnoliophyta - Magnoliopsida - Asterales - Asteraceae - Solidago 
gigantea gigantea 
