|"There are plenty of eye-witness accounts. Just because you're so narrow-minded you need to have everything shoved under your nose before you–"
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Elladora Ketteridge (1656 - 1729) was the first witch to discover the properties of Gillyweed, although Beaumont Majoribanks was credited with it about a century later. She nearly suffocated after eating the plant, but saved herself by sticking her head into a bucket of water.
- Harry Potter and the Philosopher's Stone (video game) (Appears on a Famous Wizard Card)
- Harry Potter and the Chamber of Secrets (video game) (Appears on a Famous Wizard Card)
- Pottermore (Appears on a Famous Wizard Card)
|Professors: Herbert Beery · Pomona Sprout · Neville Longbottom|
|Textbooks: Flesh-Eating Trees of the World · Goshawk's Guide to Herbology · Magical Water Plants of the Mediterranean · One Thousand Magical Herbs and Fungi · Winogrand's Wonderous Water Plants|
|Hogwarts class: Herbology Award · Herbology Lesson Cup · Herbology Race Cup · Herbology Store|
|Hogwarts greenhouses: One · Two · Three · Four · Five · Six · Seven · Professor's Office|
|Herbologists: Herbert Beery · Miranda Goshawk · Elladora Ketteridge · Beaumont Marjoribanks · Nepali wizard · Phyllida Spore · Tilden Toots · Hadrian Whittle · Sir Winogrand · Selina Sapworthy|
|Plants Studied: Bouncing Bulb · Bubotuber · Devil's Snare · Fire Seed Bush · Mandrake · Mimbulus Mimbletonia · Puffapod · Screechsnap · Self-fertilising shrub · Snargaluff · Spiky Bush · Spiky Prickly Plant · Umbrella Flower · Venomous Tentacula · Walking plant · Whomping Willow · Wild rice|