BARBERRY
barberry
(noun) any of numerous plants of the genus Berberis having prickly stems and yellow flowers followed by small red berries
Source: WordNet® 3.1
Etymology
Noun
barberry (plural barberries)
Any of the thorny shrubs of genus Berberis, which bear yellow flowers and red or blue-black berries.
Source: Wiktionary
Bar"ber*ry, n. Etym: [OE. barbarin, barbere, OF. berbere.] (Bot.)
Definition: A shrub of the genus Berberis, common along roadsides and in
neglected fields. B. vulgaris is the species best known; its oblong
red berries are made into a preserve or sauce, and have been deemed
efficacious in fluxes and fevers. The bark dyes a fine yellow, esp.
the bark of the root. [Also spelt berberry.]
Source: Webster’s Unabridged Dictionary 1913 Edition