Word Study
scarious
CIDE DICTIONARY
scarious, a. [F. scarieux, NL. scariosus. Cf. Scary.].
Thin, dry, membranous, and not green. Gray. [1913 Webster]
OXFORD DICTIONARY
scarious, adj. (of a part of a plant etc.) having a dry membranous appearance; thin and brittle.
Etymology
F scarieux or mod.L scariosus
For further exploring for "scarious" in Webster Dictionary Online