Canidia, the graveyard witch.

Her unkempt hirsute poll
all tangled with little vipers,
Canidia orders funereal cypress,
wild fig-trees dug out from tombs,
a nocturnal screech-owl’s feathers, eggs
smeared with the blood of a nasty toad,
herbs supplied by poisonous-
fertile Iolcos and Spain,
bones snatched from a starving bitch –
to be scorched in the Colchian flames.

- Horace. 'At, o deorum'. Epodes 5.