taxonID	type	description	language	source
0BBCEA6516C45142B9B9D638DDE02CD8.taxon	diagnosis	Diagnosis. This new species is most closely related to I. faberi, followed by I. piufanensis, sharing a common ancestral node, with alternate, ovate leaves, apex acuminate, base cuneate, and margin serrate. However, it differs in being almost glabrous throughout, with the spur nearly parallel to the dorsal petal, and the seeds ellipsoid, coats with reticulate ornamentation (Figs 2 – 5).	en	Zhang, Yanru, Chen, Xinyu, Qu, Tianmeng, Zheng, Xinyi, Li, Bo, Yue, Jieli, Liu, Xiaoqin, Pan, Min, Huang, Ke, Fu, Zhixi (2025): Impatiens meishanensis (Balsaminaceae), a new species from Sichuan, China. PhytoKeys 260: 97-113, DOI: 10.3897/phytokeys.260.150685
0BBCEA6516C45142B9B9D638DDE02CD8.taxon	description	Description. Herbs perennial, 40 – 80 cm tall, glabrous throughout. Stem erect, branched at the base. Leaves alternate, petiolate, petiole length 0.5 – 2 cm. Leaf blade ovate, 5 – 12 × 2 – 3 cm in size, apex acuminate, base cuneate or rounded, margin serrate or undulate, dark green adaxially and grey-green abaxially, glabrous on both surfaces, with pinnate reticulate veins and conspicuous lateral veins in about 5 – 7 pairs. Peduncle arising from upper leaf axils, 5 – 10 cm, fine, erect, glabrous or puberulent, 2 - flowered, bracts above basal pedicels. Bracts lanceolate, glabrous. Flowers large, ca. 4 cm long, pinkish-purple, with distinctive bright colors, surface smooth. Inflorescences racemose, 2 - flowered. Dorsal petal 1, suborbicular, ca. 2 × 1.5 cm, apex obtuse, upper and lower bases depressed, with obvious midrib, broadly winged. Lower petals 2, sessile, 8 – 13 × 6 – 10 mm, margins wavy, abaxially slightly thickened at midrib, base whitish, with purple veinlets. Lateral sepals 2, ovate-oblong, conchate, ca. 4 – 5 mm long, 2 – 3 mm wide, apex mucronate. Lower sepal gable-boat-shaped, ca. 1.5 – 3 cm long, ca. 1.5 cm deep, mouth obliquely upward, extending backward into a spur, apices blunt and straight. Anthers acuminate. Ovary fusiform, erect. Capsule linear, 3 – 5 cm long. Seeds ellipsoid, coats with reticulate ornamentation (Figs 3, 4).	en	Zhang, Yanru, Chen, Xinyu, Qu, Tianmeng, Zheng, Xinyi, Li, Bo, Yue, Jieli, Liu, Xiaoqin, Pan, Min, Huang, Ke, Fu, Zhixi (2025): Impatiens meishanensis (Balsaminaceae), a new species from Sichuan, China. PhytoKeys 260: 97-113, DOI: 10.3897/phytokeys.260.150685
0BBCEA6516C45142B9B9D638DDE02CD8.taxon	distribution	Distribution and ecology. This new species of Impatiens grows alongside an undeveloped trail at the lower station of the Gufoping cableway in Wawu Mountain, Sichuan Province (Fig. 6). The new species may grow elsewhere as well, with a high probability of growing on moist, rocky soils in forests.	en	Zhang, Yanru, Chen, Xinyu, Qu, Tianmeng, Zheng, Xinyi, Li, Bo, Yue, Jieli, Liu, Xiaoqin, Pan, Min, Huang, Ke, Fu, Zhixi (2025): Impatiens meishanensis (Balsaminaceae), a new species from Sichuan, China. PhytoKeys 260: 97-113, DOI: 10.3897/phytokeys.260.150685
0BBCEA6516C45142B9B9D638DDE02CD8.taxon	etymology	Etymology. The epithet “ meishanensis ” is derived from Meishan City, located in Sichuan Province, China.	en	Zhang, Yanru, Chen, Xinyu, Qu, Tianmeng, Zheng, Xinyi, Li, Bo, Yue, Jieli, Liu, Xiaoqin, Pan, Min, Huang, Ke, Fu, Zhixi (2025): Impatiens meishanensis (Balsaminaceae), a new species from Sichuan, China. PhytoKeys 260: 97-113, DOI: 10.3897/phytokeys.260.150685
