''Berberis aggregata'', the clustered barberry, is a shrub native to western

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

(

Gansu Gansu is a provinces of China, province in Northwestern China. Its capital and largest city is Lanzhou, in the southeastern part of the province. The seventh-largest administrative district by area at , Gansu lies between the Tibetan Plateau, Ti ...

Hubei Hubei is a province of China, province in Central China. It has the List of Chinese provincial-level divisions by GDP, seventh-largest economy among Chinese provinces, the second-largest within Central China, and the third-largest among inland ...

Qinghai Qinghai is an inland Provinces of China, province in Northwestern China. It is the largest provinces of China, province of China (excluding autonomous regions) by area and has the third smallest population. Its capital and largest city is Xin ...

Shanxi Shanxi; Chinese postal romanization, formerly romanised as Shansi is a Provinces of China, province in North China. Its capital and largest city of the province is Taiyuan, while its next most populated prefecture-level cities are Changzhi a ...

Sichuan Sichuan is a province in Southwestern China, occupying the Sichuan Basin and Tibetan Plateau—between the Jinsha River to the west, the Daba Mountains to the north, and the Yunnan–Guizhou Plateau to the south. Its capital city is Cheng ...

). It grows at elevations of 1000–3500 m.Flora of China v 19 p 767
/ref> ''Berberis aggregata'' is a shrub up to 3 m tall with spines along the younger branches. Leaves are ovate, up to 25 mm long, dark green on the upper surface, much lighter underneath. Flowers are borne tightly clustered in a

panicle In botany, a panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a p ...

of as many as 25 flowers. Berries are red, spherical, about 7 mm in diameter.Schneider, Camillo Karl. 1908. Bulletin de l'Herbier Boissier, sér. 2 8(3): 203.
/ref>

References

{{Taxonbar, from=Q645805 aggregata Endemic flora of China Flora of Gansu Flora of Hubei Flora of Qinghai Flora of Shanxi Flora of Sichuan Plants described in 1908