any Asiatic tree or shrub of the genus Caragana, of the pea family, having pinnately compound leaves and mostly yellow flowers, used as hedge plants in the United States, especially in cold regions.
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Caragana frutex, formerly called Caragana frutescens, is a somewhat taller shrub and not quite so floriferous.
The most remarkable forms observed were Astragaline, of which several species, one a spinous Caragana, were abundant.