Joan of Arc accused of carrying a mandrake

From J. G. Frazer's Jacob an the Mandrakes:

One of the articles of accusation against Joan of Arc was that 'the said Joanna was once wont to carry a mandrake in her bosom, hoping by means of it to enjoy prosperity in riches and temporal things, alleging that the said mandrake had such a power and effect'. This accusation the Maid utterly denied. Being asked what she did with her mandrake, she replied that she never had one, but she had heard say there was one near her town, though she had never seen it. Moreover, she had heard that a mandrake is a dangerous thing and difficult to keep; she did not know what it was used for. Questioned further about the particular mandrake which she admitted to have heard about, she answered that she had been told it was in the ground under a hazel-tree, but the exact spot she did not know. Interrogated as to the use to which a mandrake is put, she replied that she had heard that it causes money to come, but she did not believe it, and the voices that spoke to her had never said anything to her on the subject.