a unit of classification below the level of species; varieties are separated on the basis of form and colour but the varieties are usually not geographically separated and individuals of different varieties can freely interbreed.
Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-17
Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A.
. Flora of Zambia: Glossary details: variety.
http://www.zambiaflora.com/speciesdata/glossary-display.php?glossary_id=819, retrieved 30 April 2017