taxonID	type	description	language	source
0DB106671F51527BAF8E00062746F2BA.taxon	description	Fig. 2	en	Huang, Lang, Yao, Wei-Hao, Yang, Yan-Bing, An, Ming-Tai, Yu, Yuan-Lin, Zhou, Mei, Li, He (2025): Dysosma xishuiensis (Berberidaceae), a new species from Guizhou, China, based on morphological and molecular evidence. PhytoKeys 268: 59-67, DOI: 10.3897/phytokeys.268.152287
0DB106671F51527BAF8E00062746F2BA.taxon	diagnosis	Diagnosis. Dysosma xishuiensis is morphologically most similar to D. versipellis in its stems (erect, unbranched, glabrous), leaves (alternate, blade suborbicular, to 25 – 30 cm in diam, palmately lobed), flowers (attached near base of blade, red), but differs by the following characters: leaf abaxial surface, pedicels, and sepals glabrous (vs. pubescent); inflorescences bearing more flowers (8 – 20 vs. 5 – 8); larger obovate-oblong petals (2.8 – 3.4 × 1.5 – 2.0 cm vs. 2.5 × 0.8 cm); and ovary obpyriform (vs. ellipsoid).	en	Huang, Lang, Yao, Wei-Hao, Yang, Yan-Bing, An, Ming-Tai, Yu, Yuan-Lin, Zhou, Mei, Li, He (2025): Dysosma xishuiensis (Berberidaceae), a new species from Guizhou, China, based on morphological and molecular evidence. PhytoKeys 268: 59-67, DOI: 10.3897/phytokeys.268.152287
0DB106671F51527BAF8E00062746F2BA.taxon	description	Description. Herbs, 80 – 120 cm tall. Rhizomes stout, densely fibrous. Aerial stems erect, pale green, unbranched, glabrous. Leaves alternate; petioles of lower leaves 10 – 20 cm, upper leaves ca. 3 cm; leaf blade suborbicular, up to 25 cm in diameter, thinly papery, glabrous on both surfaces, abaxially with prominent venation, palmately 5 – 8 - lobed, lobes deeply divided (ca. 2 / 3 of radius); lobes obovate to obovate-oblong, margins remotely serrate, apex shallowly 3 - lobed or bearing 2 – 3 mucronate teeth. Inflorescence an 8 – 20 - flowered fascicle. Pedicels pendulous, slender, glabrous. Flowers dark red, attached near leaf base. Sepals long-elliptic, 1.5 – 2.0 × 0.5 – 0.8 cm, glabrous, apex acute. Petals oblong-obovate, 2.8 – 3.4 × 1.5 – 2.0 cm, glabrous. Stamens ca. 2 cm; filaments shorter than anthers; anther connective slightly prolonged, glabrous, acute. Pistil ca. 1.5 cm; ovary obpyriform, glabrous; style ca. 0.3 cm; stigma shield-shaped. Berry ellipsoid. Seeds numerous.	en	Huang, Lang, Yao, Wei-Hao, Yang, Yan-Bing, An, Ming-Tai, Yu, Yuan-Lin, Zhou, Mei, Li, He (2025): Dysosma xishuiensis (Berberidaceae), a new species from Guizhou, China, based on morphological and molecular evidence. PhytoKeys 268: 59-67, DOI: 10.3897/phytokeys.268.152287
0DB106671F51527BAF8E00062746F2BA.taxon	distribution	Distribution and habitat. Dysosma xishuiensis is only known from two localities in Xishui County, Guizhou, China, where it grows under the broadleaf forest by the stream or in the middle of a mountain of Danxia landform.	en	Huang, Lang, Yao, Wei-Hao, Yang, Yan-Bing, An, Ming-Tai, Yu, Yuan-Lin, Zhou, Mei, Li, He (2025): Dysosma xishuiensis (Berberidaceae), a new species from Guizhou, China, based on morphological and molecular evidence. PhytoKeys 268: 59-67, DOI: 10.3897/phytokeys.268.152287
0DB106671F51527BAF8E00062746F2BA.taxon	etymology	Etymology. The species epithet “ xishuiensis ” refers to the type locality of the new species.	en	Huang, Lang, Yao, Wei-Hao, Yang, Yan-Bing, An, Ming-Tai, Yu, Yuan-Lin, Zhou, Mei, Li, He (2025): Dysosma xishuiensis (Berberidaceae), a new species from Guizhou, China, based on morphological and molecular evidence. PhytoKeys 268: 59-67, DOI: 10.3897/phytokeys.268.152287
