'Laurentii', 'Hahnii', 'Yellow Thrive', 'Silver', 'Twist', 'Becky', Midnight Shine','Gold Flame', 'Jade', 'Sunshine', 'Whitney' and 'Twisted Sister' are just some of many human made cultivars of the variable species Sansevieria trifasciata.

These cultivars are sometimes called varieties but this has nothing to do with the taxonomic rank variety.

Sansevieria trifasciata is now included in the genus Dracaena as Dracaena trifasciata according to POWO. This is something that still has to be discussed on iNaturalist:

http://www.plantsoftheworldonline.org/taxon/urn:lsid:ipni.org:names:77164235-1

https://www.inaturalist.org/flags/458958