It seems there may be some confusion with the term "boys-and-girls." The definition you provided refers to a plant, which is not related to the phrase "boys and girls." Let me clarify both concepts for you.
The phrase "boys and girls" is commonly used as a noun phrase in English to refer to children or young people of both genders. It is often used in casual conversation, education, or community settings.
In more formal contexts, you might use "youth" or "children" instead of "boys and girls." However, "boys and girls" is friendly and inclusive.
"Boys and girls" is a simple, friendly way to refer to children of both genders. It is widely understood and used in various contexts, especially in educational and social settings.