the plant Rauwolfia serpentina ( = Ophioxylon serpentinum) of Apocynaceae family, the reserpine, an alkaloid extracted from the roots of which is used as a sedative in treating hypochondria, insomnia, insanity.
the plant Ophiorrhiza mungos of Rubiaceae family; Indian snake root plant.
a hook used to catch and pick up things from under water, that is deep.