What is included in a floret of a grass plant?

A floret of a grass plant refers specifically to the individual unit of the grass flower. The components of the floret include the glumes and the lemma, which are crucial structures that protect the reproductive parts of the flower. Glumes are the outermost bracts, while the lemma is the bract that surrounds the flower itself, providing support and protection.

Understanding these components is essential, especially in agronomy, as they play a significant role in seed development and plant reproduction. Therefore, identifying glumes and lemma as part of a floret provides insight into how grasses reproduce and how their structures adapt to different environmental conditions, contributing to the overall vitality of grass species.

The other choices involve parts of the grass plant that are not directly components of a floret. Nodes refer to points on the stem where leaves attach, auricles are small appendages at the leaf base, and stolons and rhizomes are types of vegetative structures that help in the growth and spread of the plant. While these parts are important for the plant's overall structure and function, they do not belong to the floret.