eating a wad of this grows gills and webbed fingers and toes so that a person can swim and breathe underwater. Native to the Mediterranean Sea.
ginger
roots (GF27) cut
Graphorn
horn (FB) powdered
horned toads
Neville had to disembowel a barrel of these for Snape
horned slugs
(SS8)
Jobberknoll feathers
for Memory Potions and Truth Serums (FB)
knotgrass
(CS10, 11)
lacewing flies
(CS10) stewed 21 days
leeches (CS10,11)
leech juice (PA7)
lionfish,
spine of (GF10)
mandrake
(CS
monkshood
(see aconite)
nettles
dried (SS8)
porcupine quills
(SS8)
puffer-fish eyes
(CS11)
rat tails, spleen
rat spleen (PA7)
tails - used in hair-raising potion (CS
Romanian Longhorn dragon horn
(FB) powdered
scarab beetles
(GF27) crushed
shrivelfig
Abyssinian (PA7) skinned
snake fangs
crushed (SS8)
spiders
(CS
tubeworms
(CS9)
Harry had to stay behind in Potions and scrape tubeworms off a desk
unicorn horns, tail hair
wolfsbane
(see aconite)
Scott Cunningham's "Encyclopedia of Magical Herbs" informs us that a folk name for the highly poisonous Wolf's Bane is "Dumbledore's Delight"
wormwood