What is the Unknown variety and why can't I edit it?

The Unknown variety is the variety used when the variety is not known – this could be because there isn’t
any varieties or cultivars for the plant; or it could be because the gardener is not aware of the specific
cultivar that they are growing. It’s main purpose in the site is to provide flexibility when classifying plants –
Genus level plants (i.e. Aeonium) are there for exactly the same purpose.