taxonID	type	description	language	source
23107F40FFADCF7EFF12B1654983D07F.taxon	materials_examined	Type: — China. Qinghai, Yushu, Sanjiangyuan, N 33 ° 1 ’ 34.20 ” E 97 ° 12 ’ 54.48 ”, 3,478 m, 28 June 2020, J. Zhang, C 046 (holotype: PEY! Isotype: PEY! PE!).	en	Rong, Yu-Lin, Li, Guo-Dong, Zheng, Hai-Lei, Zhang, Jun, Meng, Shi-Yong (2022): Rhodiola yushuensis, a new species of Rhodiola (Crassulaceae) from Qinghai, China. Phytotaxa 548 (1): 63-72, DOI: 10.11646/phytotaxa.548.1.5
23107F40FFADCF7EFF12B1654983D07F.taxon	diagnosis	Diagnosis: — Similar to Rhodiola smithii (Hamet) S. H. Fu but differing in caudex leaves, outer caudex leaves are wide triangular while the inner caudex leaves with distinctly petiole are obovate-triangular.	en	Rong, Yu-Lin, Li, Guo-Dong, Zheng, Hai-Lei, Zhang, Jun, Meng, Shi-Yong (2022): Rhodiola yushuensis, a new species of Rhodiola (Crassulaceae) from Qinghai, China. Phytotaxa 548 (1): 63-72, DOI: 10.11646/phytotaxa.548.1.5
23107F40FFADCF7EFF12B1654983D07F.taxon	description	Description: — A perennial low and small herb, 2 - 4 cm high. Caudex nearly erect, few branches, robust, typically 6 - 10 mm across; apical part often short, branched and accrescent, crowned by persistent old flowering stems. There are two types of caudex leaves. Outer caudex leaves scalelike, wide triangle, yellow to maroon, long 1.8 - 2 mm, wide 2.5 - 3.0 mm. Inner caudex leaves leaflike, long obovate-triangular with the entire margin, acute-obtuse at the apex, 12 - 25 mm long, 3 - 8 mm wide, petiole 6 - 35 mm. Flowering stems 1 – 3 from the apex of each caudex branch, deciduous, 11 – 30 mm long, erect, simple, terete and smooth. Leaves alternate, few and scattered, petiole 1 - 3 mm long, spurless, obovatetriangular, glabrous, 6 - 11 mm long, 2 - 5 mm wide, entire; Inflorescences terminal, 4 - 5 flower buds form cymes, flower buds are pink, pink to red when blooming. Bracts leafy. Flowers 5 - merous, calyx 5, base connate 0.5 mm, long triangular, apex acuminate, entire, green, fleshy, 2.5 - 3 mm long, 0.8 – 1.0 mm wide; Petals 5, free, oblong, pink to red, apex shortly acuminate, long 6 - 8 mm, wide 1.5 - 2.0 mm; Stamens 10, slightly shorter than petals, antepetalous ones inserted ca. 0.5 mm from petal base, long 6 - 8 mm, antesepalous ones 6 - 8 mm long, anther red; Nectar scales 5, yellow, wide quadrangular, apex emarginate, ca. 0.7 mm long, ca. 0.5 mm wide; Carpel 5, erect, long oblong, long 5 - 7 mm, base separated; Style long ca. 2.5 mm; Follicles 6 – 8 mm long, each carpel erect, Styles usually out curved, 4 – 8 seeds each carpel. Seeds oblong-lanceolate, 0.4 - 1.2 mm long, 0.2 - 0.4 mm wide. Phenology: Flowers from June to July; fruits from July to October. Habitat: Rock crevices of the valley, 3800 – 4000 m.	en	Rong, Yu-Lin, Li, Guo-Dong, Zheng, Hai-Lei, Zhang, Jun, Meng, Shi-Yong (2022): Rhodiola yushuensis, a new species of Rhodiola (Crassulaceae) from Qinghai, China. Phytotaxa 548 (1): 63-72, DOI: 10.11646/phytotaxa.548.1.5
23107F40FFADCF7EFF12B1654983D07F.taxon	etymology	Etymology: The specific epithet of this new species refers to Yushu City. Common name (assigned here): Yu Shu Hong Jing Tian (玉树 ṱạƛ; Chinese name). Proposed IUCN conservation status: The new species has been found in the rock crevices of the Tong-tian River, Zha-qu River and Zi-Qu River valley in Yushu City, Qinghai Province, China. Because there is no medicinal and economic value, the populations remain relatively stable. However, the habitats are mainly in river valleys and roadsides, and more active economic and construction activities may affect the population. The species is considered to be “ Vulnerable ” (VUD 1) according to the IUCN Red List Criteria (IUCN 2017). Additional specimens examined (paratypes): CHINA. Qinghai, Yushu, Sanjiangyuan, 3,890 m, 28 August 2010, S. Y. Meng & J. Q. Zhang, zhang 02 (PEY); Tongtian River, N 33 ° 7 ’ 35.73 ” E 97 ° 7 ’ 55.21 ”, 3,536 m, 27 June 2020, J. Zhang, C 037 (PEY).	en	Rong, Yu-Lin, Li, Guo-Dong, Zheng, Hai-Lei, Zhang, Jun, Meng, Shi-Yong (2022): Rhodiola yushuensis, a new species of Rhodiola (Crassulaceae) from Qinghai, China. Phytotaxa 548 (1): 63-72, DOI: 10.11646/phytotaxa.548.1.5
