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There are eight groups of living angiosperms:

  • Amborella - a single species of shrub from New Caledonia
  • Nymphaeales - about 80 species - water lilies and Hydatellaceae
  • Austrobaileyales - about 100 species[ of woody plants from various parts of the world
  • Chloranthales - several dozen species of aromatic plants with toothed leaves
  • Ceratophyllum - about 6 species of aquatic plants, perhaps most familiar as aquarium plants
  • magnoliids - about 9,000 species, characterized by trimerous flowers, pollen with one pore, and usually branching-veined leaves - for example magnolias, bay laurel, and black pepper
  • eudicots - about 175,000 species, characterized by 4- or 5- merous flowers, pollen with three pores, and usually branching-veined leaves - for example sunflowers, petunia, buttercup, apples and oaks
  • monocots - about 70,000 species, characterized by trimerous flowers, a single cotyledon, pollen with one pore, and usually parallel-veined leaves - for example grasses, orchids, and palms

The exact relationship between these eight groups is not yet clear, although it has been determined that the first three groups to diverge from the ancestral angiosperm were Amborellales, Nymphaeales, and Austrobaileyales.[16] The term basal angiosperms refers to these three groups.
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