Explanation
The technical term used for a sterile stamen is "staminode".
A staminode is a modified, non-functional stamen that may lack anthers or produce non-viable pollen. Staminodes can have various shapes and colors, and they often play a role in attracting pollinators by mimicking other floral structures. The presence of staminodes is common in many plant species and can be used as a diagnostic feature in plant taxonomy.