A Grammatical Dictionary of Botanical Latin

Turris,-is (s.f.III), abl. sg. turre: tower, q.v.

Turris,-is (s.f.III), “a genus of small marine snails having a graceful shell shaped like a spindle and being the type of the family Turritidae” (WIII).

Turritis L. (s.f.III), Tower-mustard, towercress [> L. Latin turris, tower, in reference to the pyramidal shape of plants due to overlap of leaves and fruits; From turris, a tower; the foliage is so disposed on the stems as to give them a pyramidal form; and for the same reason the plants are called Tower-mustard. (Paxton).]

Turritella,-ae (s.f.I), “a genus ... of marine gastropod mollusks having an elongated turreted shell composed if many whorls with a rounded aperture and a horny multispiral operculum” (WIII).

turritus,-a,-um (adj.A): furnished with towers (as a wall); tower-like, towering high, as cliffs (scopuli).