Hey there, little one! Have you ever seen plants and noticed that some have flowers with both male and female parts, while others have flowers with only male or female parts? Well, monoicous is a fancy word that scientists use to describe plants that have both male and female parts in the SAME flower!
Imagine you have a basket with toys that are both boy and girl toys. That's similar to what happens with monoicous plants! They have both boy and girl parts in one flower. Instead of needing another plant nearby to pollinate and make babies, monoicous plants can do it all by themselves.
So, just like how some toys are made for boys or girls, some plants only have boy or girl parts, but monoicous plants have both! Pretty cool, huh?