Magnoliophyta
Ovules (and seeds) enclosed within carpels (fruits); the carpels bearing stigmas upon which the pollen lodges. Pollen produced in the anthers of stamens. Carpels and stamens usually surrounded by a perianth; the whole constituting a flower which may be uni- or bi-sexual (= angiosperms) Magnoliophyta
Flowers usually 3-merous. Leaf venation usually parallel. Embryo with 1 cotyledon Plants usually herbaceous rarely woody and then ± unbranched) Liliopsida
Ovary superior
Flowers not grouped into spikelets and not covered by a glumaceous bract
Carpels 3 or more, free
Perianth absent or flowers with 4 sepaloid appendage Potamogetonaceae
Perianth mostly of 6 segments, sometimes 2 or 4, in 2 whorls Juncaginaceae