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Professor Sprout: "Bubotubers. They need squeezing. You will collect the pus-"
Seamus Finnigan: "The what?"
Professor Sprout: "Pus, Finnigan, pus."
Pomona Sprout and Seamus Finnigan in 1994[src]

A bubotuber is a type of magical plant, the visible part of which is said to resemble a large, thick, black slug. This portion of the plant also squirms of its own volition. The surface of a bubotuber is covered in shiny protrusions, which when squeezed yield a thick, yellowish-green pus that has an odour akin to that of gasoline/petrol.

Bubotubers are discussed in Fourth year Herbology classes.

Habitat

It is unknown where bubotubers originate from, but they can be found in the Forbidden Forest and are kept at the Hogwarts Greenhouses.

Bubotuber

Use of pus

Bubotuber pus acts as a treatment for severe acne, but undiluted pus can affect unprotected skin in unintended ways. This suggests that bubotuber pus is a topical treatment, but that the actual salve consists of the pus either diluted in a solution or mixed with other ingredients.

History

In her fourth year at Hogwarts, Hermione Granger was sent a letter full of bubotuber pus by an unknown person who evidently believed the slanderous Rita Skeeter article that claimed that Hermione was toying with the affections of both Harry Potter and Viktor Krum.

Carpe

Harry using Carpe Retractum against a bubotuber

Etymology

  • The name "Bubotuber" seems to be a compound of the words "bubo", the swelling of the lymph nodes seemingly like a large blister that accompanies infections like the bubonic plague, tuberculosis, or syphilis, and "tuber", referring to the fleshy, thickened underground stem of a plant, usually containing stored starch, like a potato. Both seem to be in reference to the appearance of the plant.

Appearances


Herbology
Pottedmandrake
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