why classify plants?
Identify - some species are very similar; unique identification is important
Summarise common characteristics - diagnostic characteristics for grouping (‘taxa’)
Imply relationships - sharing of evolutionary development (genetic relationship)
A systematic hierarchical structure of botanical nomenclature: the binomial system (scientific name)
Stable - governed by rules
Internationally (universally) understood - same botanical names for same plants
Unique and unequivocal - prevents or reduces confusion of common names
Reflects classification and relationships - all members of group share common characteristics
Gives clue to plant’s appearance or characteristics
Nomenclature and binomial system
Basic units of nomenclature are Family, Genus, Species.
Binomial - generic name (genus - fairly similar organisms); specific epithet (species - unique identification) e.g. Lathyrus latifolius L. (L = authority)
Kingdom: PLANTAE (plants)
Division: MAGNOLIOPHYTA (angiosperms - flowering plants)
Family: Leguminosae (Facaceae - pea family)