taxonID	type	description	language	source
82B9EDBE23675945AB28A4DB3E0A97F0.taxon	description	Figs 1, 2	en	Liu, Lei, Qiang, Xiao-Jing, Huang, Fan, Huang, Xiu-Zheng, Yu, Ya-Lin (2025): Stellaria yabulaiensis (Caryophyllaceae), a new species from Inner Mongolia, China. PhytoKeys 259: 103-109, DOI: 10.3897/phytokeys.259.150512
82B9EDBE23675945AB28A4DB3E0A97F0.taxon	diagnosis	Diagnosis (Table 1). Stellaria yabulaiensis is similar to S. bistyla from which differ in having a slender fibrous root (0.3 – 0.5 mm in diameter vs. ca. 5 – 8 mm taproot), occurrence of a rhizome (vs. without rhizome), quadrangular stem (vs. cylindrical stem), linear-lanceolate leaf, 30 – 65 × 4 – 6 mm (vs. ovate-lanceolate, 10 – 20 × 2 – 10 mm), longer pedicel, 14 – 40 mm (vs. 3 – 20 mm), 3 styles (vs. usually 2 styles), and 1 – 3 seeds per fruit (vs. 1 – 2 seeds).	en	Liu, Lei, Qiang, Xiao-Jing, Huang, Fan, Huang, Xiu-Zheng, Yu, Ya-Lin (2025): Stellaria yabulaiensis (Caryophyllaceae), a new species from Inner Mongolia, China. PhytoKeys 259: 103-109, DOI: 10.3897/phytokeys.259.150512
82B9EDBE23675945AB28A4DB3E0A97F0.taxon	description	Description. Herbs perennial, 8 – 20 cm tall. Slender fibrous root. Rhizome quadrangular and slender (0.7 – 1.1 mm in diameter). Stems, quadrangular, slender with glandular hairs. Leaves sessile, smooth, oblong to oblong-lanceolate, 3.0 – 6.5 cm long, 4 – 6 mm wide, apex acuminate, base slightly narrowed, margin entire, mid-vein obviously raised. Flowers solitary in axillary cymes. Bracts foliate, oblong, 3 – 15 mm long, 3 mm wide, apex acuminate. Pedicel filiform, glandular hairs, 1.4 – 4.0 cm. Sepals 5, glandular hairs, oblong, 6 mm long, 2 mm wide, margin membranous. Petals 5, subequalling sepals, 2 - lobed cleft, lobes oblong. Stamens 10, almost equal with sepals, filament widened at base, succulent, anthers fuchsia. Ovary ellipsoid, styles 2 or 3. Capsule black-brown, ellipsoid, markedly shorter than sepals, ca. 2.5 mm long. Seeds 1 – 3, brown, reniform, 2 mm long, 1.5 mm wide, regularly rugulose.	en	Liu, Lei, Qiang, Xiao-Jing, Huang, Fan, Huang, Xiu-Zheng, Yu, Ya-Lin (2025): Stellaria yabulaiensis (Caryophyllaceae), a new species from Inner Mongolia, China. PhytoKeys 259: 103-109, DOI: 10.3897/phytokeys.259.150512
82B9EDBE23675945AB28A4DB3E0A97F0.taxon	etymology	Etymology. The specific epithet “ yabulaiensis ” refers to the Yabulai Mountain where the new species was collected.	en	Liu, Lei, Qiang, Xiao-Jing, Huang, Fan, Huang, Xiu-Zheng, Yu, Ya-Lin (2025): Stellaria yabulaiensis (Caryophyllaceae), a new species from Inner Mongolia, China. PhytoKeys 259: 103-109, DOI: 10.3897/phytokeys.259.150512
82B9EDBE23675945AB28A4DB3E0A97F0.taxon	distribution	Distribution and habitat. Stellaria yabulaiensis is known from Alashan Right Banner, Inner Mongolia, China. The plants grow in humid sand at 1370 m a. s. l. For the time being, S. yabulaiensis is only known from the type locality, comprising less than 50 individuals.	en	Liu, Lei, Qiang, Xiao-Jing, Huang, Fan, Huang, Xiu-Zheng, Yu, Ya-Lin (2025): Stellaria yabulaiensis (Caryophyllaceae), a new species from Inner Mongolia, China. PhytoKeys 259: 103-109, DOI: 10.3897/phytokeys.259.150512
