Scleroderm is an alchemy ingredient in The Witcher 2: Assassins of Kings.

While this plant grows wild and is quite abundant, it can also be purchased from the following merchants:

• Anezka in Lobinden
• Vilmos Bartok in Flotsam
• Mottle outside Vergen
• Sambor in the camp followers' encampment
• Myron in the Kaedweni camp
• Relic peddler in the Kaedweni camp
• Felicia Cori in Vergen or Loc Muinne
• The Incredible Lockhart in Loc Muinne
• Marcus in Loc Muinne