A Grammatical Dictionary of Botanical Latin

pedicularis,-e (adj.B):

1. relating to the pediculus, an obsolete word for pedicel, i.e. stalk, stipe, ‘little foot.’

peripedicularis,-e (adj.B): (in fungi) “of origin of the veil) arising by a proliferation of the surface of the stipe, as does the ‘partial veil’ (Kühner, 1926) > peri- ‘near, around’ + pediculus, a little foot” (S&D).

2. relating to the louse (pediculus,-i (s.c.II)).

Pedicularia,-ae (s.f.III): Louse-wort, wood-betony, "from pediculus, a louse, because of the early European belief that cattle, feedng where P. palustris abounded, became covered with lice" (Fernald 1950); “the presence of the plant in fields was supposed to produce lice in sheep. Scrophulariaceae” (Stearn 1996).

Pediculus,-i (s.c.II), abl. sg. pediculo: a louse.

Gerardia pedicularia L. “resembling Pedicularia” (Fernald 1950).