- Harry Potter and the Order of the Phoenix (First mentioned)
- J. K. Rowling's official site (Mentioned only)
- The Wizarding World of Harry Potter
- Harry Potter: Hogwarts Mystery (First appearance)
- Harry Potter: Wizards Unite
Notes and references
- Harry Potter: Hogwarts Mystery, Year 4, Chapter 7 (Beast, Beings, and Creatures) - Herbology Lesson "Flitterbloom"
- Harry Potter and the Order of the Phoenix, Chapter 23 (Christmas on the Closed Ward)
- Harry Potter and the Order of the Phoenix, Chapter 25 (The Beetle at Bay)
- J. K. Rowling's official site
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