The following is a partial list of fictional plants that appeared in movie "Harry Potter"
A Mandrake, also known as Mandragora, is a plant which has a root that looks like a human (like a baby when the plant is young, but maturing as the plant grows). When mature, its cry can be fatal to any person who hears it.
professor sprout teaches her second year herbology students how to pot young Mandrakes.
Abyssinian shrivelfig: When peeled, shrivelfigs are used as an ingredient in Shrinking Solution.
Alihotsy: ingestion of its leaves causes hysteria.
Bouncing bulb: an animated bulb plant; appears in Harry Potter and the Goblet of Fire.
- Bubotuber: thick, black, slug-like plants that grow vertically out of the soil. It is normal for them to squirm and they are covered in pus-filled swellings. The pus appears to be acidic and will damage flesh when untreated, but if distilled it can be a useful potion ingredient.
- Devil’s Snare: a vine plant that strangles people and wilts in the sunlight. Harry, Ron, and Hermione find themselves caught in it in Harry Potter and the Philosopher’s Stone, and it strangles a man in St. Mungo’s hospital in Harry Potter and the Order of the Phoenix. Also, Professor Sprout lobs it over the wall during the Battle of Hogwarts.
- Dittany: a plant which has the ability to cure wounds.
*Dirigible Plum: a plum tree with floating fruits. Luna Lovegood mentions the plant and it is later seen outside her home in Harry Potter and the Deathly Hallows.
- Fanged Geranium: a geranium that bites humans.
- Flitterbloom: a plant that superficially resembles a Devil’s Snare but is non-violent.
*Flutterby bush: a bush that quivers and shakes.
- Gillyweed: when eaten, this plant causes the user to grow gills and webbed feet and fingers, and thus become able to breathe and swim underwater for approximately an hour, depending on whether the user is in fresh or salt water.
- Gurdyroot: resembles a green onion.
Honking daffodil: mentioned in Harry Potter and the Order of the Phoenix. Professor Sprout has some.
- Mandrakes: tubers that look like babies when young. Their screams can kill when fully grown. A potion made from mature mandrakes can restore victims that have been Petrified. A different kind of Mandrake is a real plant. Whilst the Mandrake as it appears in the books and films is fictional,
Rowling’s description does reflect genuinely held beliefs about the Mandrake, in particular, the danger surrounding its screams. This led to the practice of using dogs to collect the mandrake, and the blocking of ears during collecting.
Mimbulus mimbletonia: a cactus with boils instead of spines; sprays foul-smelling goo in a large radius when poked.
Puffapod: a large pink pod filled with seeds; bursts into flower when dropped.
Screechsnap: a semi-sentient plant that wriggles and squeaks uncomfortably when given too much dragon dung manure.
Snargaluff: a dangerous man-eating carnivorous plant, deceptively taking shape of a dead tree stump when in passive condition; shoots out thorny vines to catch their prey. From Harry Potter and the Half-Blood Prince.
Venomous Tentacula: a species of magical plant that possess a series of dark red spiny tentacles; appears in PC video games as a Venus flytrap with a tentacled base, later rendered like a flower with teeth inside the petals. A wizard comedian is known to have survived eating this plant on a bet, though he is still purple.
Whomping Willow: a large, violent tree that thrashes its branches at those who approach it. Though it first appears in Harry Potter and the Chamber of Secrets, it features significantly in Harry Potter and the Prisoner of Azkaban. Can only be stopped by pulling the knot at its roots.