For her experiment she studied the inheritance of three traits: a maroon coloured leaf marking, a white V-shaped leaf mark pattern, and the production of hydrogen cyanide in damaged leaves, which is thought to be a defence against predators.
In the Anglo-Saxon world Lamarck's name, if it is known at all, is associated with a theory long since discredited - the idea known as the inheritance of acquired characteristics - the idea that traits or attributes acquired or learned in the space of your life time will somehow be inherited by your children at birth.