taxonID	type	description	language	source
A1D82914CD785B10A0D8DE2B235516F6.taxon	diagnosis	Diagnosis. The new species is most similar to P. neurocalyx, P. longipilosa and P. sinomollis, sharing multicellular hairs covering the plant, subrounded leaf blade are more or less lobed, with distinct petiole and a deeply cordate base and campanulate or narrowly campanulate calyx. However, the new species is distinguished from the latter three mainly by its scape usually being lower than leaf clusters, umbel is in whorls of 1 – 2, broadly ovate bracts and rose to pink petals are distinctly veined (Figs 1 – 3). The main morphological distinctions between P. yanbianensis, P. neurocalyx, P. longipilosa and P. sinomollis are summarised in Table 1.	en	Shuai, Tian, Lin, Hong-qiang, Cai, Lei, Chen, Yu-fan, Wu, Zhi-kun (2025): Primula yanbianensis (Primulaceae), a new species in Primula sect. Cortusoides from Sichuan, China. PhytoKeys 252: 109-118, DOI: 10.3897/phytokeys.252.140026
A1D82914CD785B10A0D8DE2B235516F6.taxon	description	Description. A perennial herb with a short and usually inconspicuous rhizome and numerous robust fibrous roots, densely covered throughout with multicellular hairs. Leaves all rising from the root, forming a rosette, leaves including the petiole 10 – 25 cm long, petiole 5 – 18 cm, clothed with long spreading soft multicellular hairs, slightly sheathed at the base; leaf blade suborbicular to reniform, 4 – 12 cm long, 3 – 10 cm wide, apex obtuse, base cordate to deeply cordate, the leaf margin is undulate and lobed, the upper surface of the leaf sparsely septate hairs, while the lower surface covered with multicellular hairs along all the veins, mid-rib and 4, 5 pairs of pinnate lateral veins slightly impressed above, prominent below, reticulation open and rather feebly developed. Scapes 6 – 13 cm long, 1, 2 rising from the middle of the rosette leaves, shorter than leaves, densely covered with long soft multicellular hairs, carrying 1, 2 superposed umbels each with 3 – 5 flowers. Bracts broadly ovoid, 3 – 6 mm long, usually shorter than half of the pedicel, with long soft multicellular hairs. Pedicel 1, 2 cm, with a dense covering of long multicellular hairs. Flower heterostylous. Calyx narrowly campanulate to campanulate, 6 – 8 mm long, covered with long multicellular hairs abaxially, inner surface glabrous, cut to middle, lobes broadly ovate, with 3 – 5 prominent veins, apex with short cusp. Corolla rose to pink, tube 1.2 – 1.8 cm long, with long soft multicellular hairs outside, limb 1.5 – 2 cm in diameter, lobes obcordate, 6 – 8 mm in diameter, with prominent veins from yellow mouth, apex deeply emarginate. Pin flowers: tube 1.2 – 1.5 cm long, style 10 – 12 mm long, stamens at ca. 3 mm above the base of corolla tube; thrum flowers: tube 1.2 – 1.8 cm long, style 3 – 5 mm long, stamens at 2 / 3 length of corolla tube, ca. 10 – 12 mm above the base of corolla tube. Ovary globose (Figs 1, 2). Capsule unknown.	en	Shuai, Tian, Lin, Hong-qiang, Cai, Lei, Chen, Yu-fan, Wu, Zhi-kun (2025): Primula yanbianensis (Primulaceae), a new species in Primula sect. Cortusoides from Sichuan, China. PhytoKeys 252: 109-118, DOI: 10.3897/phytokeys.252.140026
A1D82914CD785B10A0D8DE2B235516F6.taxon	distribution	Distribution and habitat. This new species is currently only known from the type locality near Qingyi Road, Yongxing Town, Yanbian County, Panzhihua City, Sichuan Province, China and is mostly found on grassy slopes along the valley forest margin, at altitudes of 1500 – 1650 m (Fig. 1; Map 1).	en	Shuai, Tian, Lin, Hong-qiang, Cai, Lei, Chen, Yu-fan, Wu, Zhi-kun (2025): Primula yanbianensis (Primulaceae), a new species in Primula sect. Cortusoides from Sichuan, China. PhytoKeys 252: 109-118, DOI: 10.3897/phytokeys.252.140026
A1D82914CD785B10A0D8DE2B235516F6.taxon	etymology	Etymology. The specific epithet of the new species is taken from the Chinese Pinyin “ yanbian ”, the name of the county in south-western Sichuan, China, where the type specimen was collected (Map 1).	en	Shuai, Tian, Lin, Hong-qiang, Cai, Lei, Chen, Yu-fan, Wu, Zhi-kun (2025): Primula yanbianensis (Primulaceae), a new species in Primula sect. Cortusoides from Sichuan, China. PhytoKeys 252: 109-118, DOI: 10.3897/phytokeys.252.140026
