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Please see the plant page for a discussion of the different classification methods.

The correlation between various methods of classifying plants.

Phylum	Tissue Structure	"Seed" Structure	Stature
Bryophyta (mosses)	Non-vascular (Bryophytes)	Spore Producers	Moss-like
Psilophyta whisk ferns	Vascular Plants (Tracheophytes)		Fern- and Tree-like
Lycopodophyta (club ferns)
Sphenophyta (horsetails)
Filicinophyta (ferns)
Cycadophyta (cycads)		Naked seeds (Gymnosperms)
Ginkophyta (Ginkoes)			Tree-like
Coniferophyta (conifers)			Tree- and shrub-like
Gnetophyta (??)
Angiospermophyta (flowering plants) Dicotyledons (two seed-leaves) Monocotyledons (single seed-leaf)		Covered seeds (Angiosperms)	Tree-, shrub-, vine-, and herb-like

Note that some of the stature classifications are rather arbitrary. For example, a horsetail probably looks more like a herbacious plant than a fern and cycads may look more like small palms than ferns. Some tropical ferns can be quite tall, resembling trees.