RHAMNACEOUS

Etymology

Adjective

rhamnaceous (not comparable)

Of or pertaining to plants in the family Rhamnaceae, the buckthorns.

Source: Wiktionary

Rham*na"ceous, a. (Bot.)

Definition: Of or pertaining to a natural order of shrubs and trees (Rhamnaceæ, or Rhamneæ) of which the buckthorn (Rhamnus) is the type. It includes also the New Jersey tea, the supple-jack, and one of the plants called lotus (Zizyphus).

Source: Webster’s Unabridged Dictionary 1913 Edition