An organized system for descriptive classification based on the externalappearance of organisms
Plant Taxonomy
The science of naming organisms and putting them in a hierarchical structure
Carolus Linnaeus
The 'Father of Taxonomy'
Nomenclature
The system of assigning names to plants
Levels of classification
Kingdom
Division
Class
Order
Family
Genus
Species
Kingdom
The most inclusive, broad level of classification
Species
The least inclusive, most specific level of classification
Cryptogamae
The kingdom that houses plants that use spores as their main way of reproduction, withoutseeds or flowers
Phanerogamae
The kingdom that consists of plants that use seeds to reproduce
Thallophyta
Non-mobile plants that are usually called "small plants", lack a vascularsystem, and rely on diffusion for the transfer of materials (includes algae, fungi, and lichens)
Bryophyta
Consists of mosses, liverworts, and hornworts, mainly gets nutrients in the water and in the air
Pteridophyta
Considered as the first plants to live and evolve on land (ferns and horsetails)
Gymnospermae
The group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes, where the seeds are notenclosed within a carpel
Angiospermae
The plants that have flowers and produce seeds enclosed within a carpel
Monocotyledone
Flowering plants with an embryo that bears a singlecotyledon (seed leaf), typically have elongated stalkless leaves with parallel veins (e.g. grasses, lilies, palms)
Dicotyledone
Also known as dicots, one of the two groups into which all the flowering plants were formerly divided, the seed has twoembryonicleaves or cotyledons, around 200,000 species within this group