Flower – Notes
A flower is the sexual reproductive unit of flowering or angiosperms.
A flower ha four main whorls: Calyx, corolla, androecium and gynoecium, arranged on the thalamus or the receptacle.
A bisexual flower has both androecium and gynoecium, while a unisexual flower has either androecium and gynoecium.
Flowers can also be either asymmetrical or symmetrical based on the arrangement of the floral parts around the thalamus.
Flowers are classified as trimerous, tetramerous or pentamerous based on the of flowering parts such as sepals, petals and stamens.
Flowers with bracts or reduced leaves at the base of the thalamus called bracteates, while those without bracts are called ebracteate.