taxonID	type	description	language	source
09F43C006B0B572199DB9F98C719EA30.taxon	description	Fig. 2	en	Pan, Hong-Li, Zhang, Yue, Wang, Jia-Hao, Meng, De-Chang, Yu, Chih-Chieh (2025): Berberis jiuzhaigouensis (Berberidaceae), a new riparian shrub from northern Sichuan, China. PhytoKeys 261: 165-174, DOI: 10.3897/phytokeys.261.158475
09F43C006B0B572199DB9F98C719EA30.taxon	diagnosis	Diagnosis. Berberis jiuzhaigouensis is morphologically similar to B. gilgiana and B. salicaria, particularly in leaf shape. However, it can be readily distinguished by its glabrous abaxial leaf surface – contrasting with the distinctly pubescent midrib of B. gilgiana (Suppl. material 1: fig. S 1 A) – and by its fascicled to sub-umbellate inflorescences, in contrast to the spike-like racemes characteristic of both B. gilgiana and B. salicaria.	en	Pan, Hong-Li, Zhang, Yue, Wang, Jia-Hao, Meng, De-Chang, Yu, Chih-Chieh (2025): Berberis jiuzhaigouensis (Berberidaceae), a new riparian shrub from northern Sichuan, China. PhytoKeys 261: 165-174, DOI: 10.3897/phytokeys.261.158475
09F43C006B0B572199DB9F98C719EA30.taxon	description	Description. Shrubs, deciduous, to 1.5 m tall; mature stems brown or purplish-red, terete; spines 3 - fid, often solitary towards apex of stems, 0.2 – 1 cm, weak. Petiole almost absent; leaf blade abaxially pale green, adaxially green, lanceolate, obovate-lanceolate, or narrowly elliptic, 2.5 – 6 × 0.2 – 1.5 cm; lateral veins and reticulation partially raised abaxially, inconspicuous adaxially; base attenuate; margin entire; apex acute. Inflorescence a fascicle, sub-umbel, solitary, or 6 – 8 - flowered, ca. 3 cm including peduncle 1 cm; pedicel 2 cm, bracteoles triangular. Sepals in 3 whorls, outer sepals narrowly elliptic 3 – 3.5 × 1.5 – 2 mm, median sepals elliptic-obovate 4.5 – 5 × 3 – 3.5 mm; inner sepals elliptic-orbicular 5 – 5.5 × 3.5 – 4 mm; petals obovate or orbicular-obovate, 5 – 6 × 6 – 7 mm, base distinctly clawed; glands separate, elliptic or obovate, 0.75 – 1 mm, apex entire or incised. Stamens 2.5 – 3 mm; anther connective truncate. Ovules 2, 3. Berry red, ellipsoid 8 – 9 mm × ca. 5 mm, estylose.	en	Pan, Hong-Li, Zhang, Yue, Wang, Jia-Hao, Meng, De-Chang, Yu, Chih-Chieh (2025): Berberis jiuzhaigouensis (Berberidaceae), a new riparian shrub from northern Sichuan, China. PhytoKeys 261: 165-174, DOI: 10.3897/phytokeys.261.158475
09F43C006B0B572199DB9F98C719EA30.taxon	distribution	Distribution and habitat. Berberis jiuzhaigouensis is currently known only from the type locality. It has been collected from ravine habitats and valley slopes at elevations ranging from approximately 1,600 to 2,000 m a. s. l.	en	Pan, Hong-Li, Zhang, Yue, Wang, Jia-Hao, Meng, De-Chang, Yu, Chih-Chieh (2025): Berberis jiuzhaigouensis (Berberidaceae), a new riparian shrub from northern Sichuan, China. PhytoKeys 261: 165-174, DOI: 10.3897/phytokeys.261.158475
