Hi everyone! I am a biology student from Belgium starting an individual research on the evolution of plants (using DNA sequencing) and the construction of cladograms. I am writing here to search some useful advice on what kind of plant I should start with. I am searching for a plant with medicinal virtues, difficult to cultivate and to grow. This is because the construction of the cladogram would allow to search for similare medicinal properties in plants closely related to the first one but easier to grow. Do you have any suggestion? Thank you very much.