Elladora Ketteridge
Biographical information
Born	1656
Died	1729 (aged 63)
Physical information
Species	Human
Gender	Female
Hair colour	Black
Skin colour	White

[Source]

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.

Appearances

• 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)

Herbology
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 · Whomping Willow · Wild rice