Concept
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Sexual Reproduction in Angiosperms
Structures of the flower
The four main parts of the flower are the calyx, corolla, androecium, and gynoecium. The androecium is the sum of all the male reproductive organs, and the gynoecium is the sum of the female reproductive organs.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"OpenStax College, Reproductive Development and Structure. October 17, 2013."
http://cnx.org/content/m44722/latest/Figure_32_01_02.png
OpenStax CNX
CC BY 3.0.