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 4- or 5-merous (rarely 3-merous, when the plants are usually branching trees, shrubs or parasitic twiners). Leaf venation usually reticulate. Embryo with 2 cotyledons. Trees, shrubs, herbs, climbers Magnoliopsida
Flowers in heads or spikes or racemes
Branches with rigid spines Maclura
Trees or tall shrubs. Leaves ovate, mostly 5–15 cm long. Compound fruit 10–15 cm diam., yellowish-green. Male flower heads 15–20 mm diam. Occasionally naturalized. Introd. from N. America. Osage Orange Maclura pomifera