Origin of plant names II

Linseed, Flax-seed

Latin name: Linum usitatissimum 

Linum (=thread)
The Latin name Linum comes from the Celtic, il/in, meaning a thread; the English, linen, refers to the fabric.

usitatissimum (= most useful) 
The species name usitatissimum comes from the Latin adjective, usitatus, most useful.


------------------------------------------------------------

Nux vomica

Latin name: Strychnos nux-vomica

Strychnos
from strychnon, strychnos ‘acrid, bitter’

nux-vomica (nux=nut, vomica= cause vomiting)
The Latin binomial means "the nut that causes vomiting.