taxonID	type	description	language	source
66BD5D7534F854C788FCDC2BF3CFF1F5.taxon	description	Figs 1, 5	en	Jiang, Qiu-Ping, Price, Megan, Zhang, Xiang-Yi, He, Xing-Jin (2022): Hansenia trifoliolata, a new species (Apiaceae) from Shaanxi, China. PhytoKeys 213: 79-93, DOI: http://dx.doi.org/10.3897/phytokeys.213.83632, URL: http://dx.doi.org/10.3897/phytokeys.213.83632
66BD5D7534F854C788FCDC2BF3CFF1F5.taxon	description	Diagnostic characters. Monocarpic. Root cylindrical, branched or partial rhizomes. Leaves 3 - foliolate. Umbels 2 - 5 cm across, rays 3 - 7, unequal. Stylopodium conical. Fruits are obovoid-oblong or long-ellipsoid, have 5 ribs, ribs prominent to narrow-winged and endosperm (at commissural side) concave. It is clearly distinguished from H. phaea and H. himalayensis in leaves (ternate- 1 - 2 - pinnate and 3 - pinnate vs. 3 - foliolate). Compared to other Hansenia species (i. e. H. forrestii, H. oviformis and H. forbesii), H. trifoliolata also shows distinctive morphological characters, especially in fruits characters (shape and ribs) and leaves (3 - foliolate is unique in Hansenia).	en	Jiang, Qiu-Ping, Price, Megan, Zhang, Xiang-Yi, He, Xing-Jin (2022): Hansenia trifoliolata, a new species (Apiaceae) from Shaanxi, China. PhytoKeys 213: 79-93, DOI: http://dx.doi.org/10.3897/phytokeys.213.83632, URL: http://dx.doi.org/10.3897/phytokeys.213.83632
66BD5D7534F854C788FCDC2BF3CFF1F5.taxon	materials_examined	Type. China, Shaanxi Province: Tongtianhe National Forest Park, Feng County, elevation 2430 m a. s. l., 34 ° 14 ' N, 106 ° 33 ' E, 28 Sep 2021, Q. P. Jiang, JQP 21092801, fruiting (Holotype: SZ).	en	Jiang, Qiu-Ping, Price, Megan, Zhang, Xiang-Yi, He, Xing-Jin (2022): Hansenia trifoliolata, a new species (Apiaceae) from Shaanxi, China. PhytoKeys 213: 79-93, DOI: http://dx.doi.org/10.3897/phytokeys.213.83632, URL: http://dx.doi.org/10.3897/phytokeys.213.83632
66BD5D7534F854C788FCDC2BF3CFF1F5.taxon	description	Description. Biennial, herb, 60 - 90 cm high. Root cylindrical, branched or partial rhizomes. Stem purplish-green, thinly ribbed, glabrous, thin. Leaves 3 - foliolate, green, blade broad-triangular, irregularly doubly serrate, teeth mucronate; central leaflets cuneate-obovate or rhombic, 4 - 6 x 2 - 3.5 cm, with irregularly doubly serrate, base cuneate; lateral leaflets oblique-ovate, base oblique, often shallowly or deeply uneven 2 - parted or not divided, 2 - 5 x 3.5 - 6.5 cm. Basal petioles 15 - 20 cm, petioles shorten upwards; sheaths narrow-oblong, glabrous, with margin irregularly coarse-cuspidate-serrate. Umbels 20 - 50 mm across; peduncles 5 - 20 mm long, glabrous; bracts 0 to 2, linear; rays 3 to 7, 5 - 25 mm long, glabrous; bracteoles 2 to 7, linear, 3 - 8 mm long; raylets 5 to 11, 1 - 3 mm long. Flowers unknown; calyx teeth ovate-triangular, 0.3 - 0.5 mm; petals unknown; stylopodium conical. Fruit obovoid-oblong or long-ellipsoid, 1.4 - 2.1 x 4 - 6 mm; mericarps 5 - ribbed, ribs prominent to narrow-winged; vittae 3 (4) in each furrow, 2 - 5 on commissure; endosperm (at commissural side) concave, commissure width 0.8 - 1.35 mm.	en	Jiang, Qiu-Ping, Price, Megan, Zhang, Xiang-Yi, He, Xing-Jin (2022): Hansenia trifoliolata, a new species (Apiaceae) from Shaanxi, China. PhytoKeys 213: 79-93, DOI: http://dx.doi.org/10.3897/phytokeys.213.83632, URL: http://dx.doi.org/10.3897/phytokeys.213.83632
66BD5D7534F854C788FCDC2BF3CFF1F5.taxon	etymology	Etymology. The specific epithet refers to the distinctive 3 - foliolate leaves.	en	Jiang, Qiu-Ping, Price, Megan, Zhang, Xiang-Yi, He, Xing-Jin (2022): Hansenia trifoliolata, a new species (Apiaceae) from Shaanxi, China. PhytoKeys 213: 79-93, DOI: http://dx.doi.org/10.3897/phytokeys.213.83632, URL: http://dx.doi.org/10.3897/phytokeys.213.83632
66BD5D7534F854C788FCDC2BF3CFF1F5.taxon	distribution	Distribution, habitat and ecology. At present, this new species has only been found in the type locality in Tongtianhe National Forest Park, Feng County, Shaanxi Province, China. According to the growing environment, we speculate it may inhabit forests at an elevation of 2300 m to 2500 m in western Shaanxi Province and south-eastern Gansu Province. This new species grows in humid environments under the forests.	en	Jiang, Qiu-Ping, Price, Megan, Zhang, Xiang-Yi, He, Xing-Jin (2022): Hansenia trifoliolata, a new species (Apiaceae) from Shaanxi, China. PhytoKeys 213: 79-93, DOI: http://dx.doi.org/10.3897/phytokeys.213.83632, URL: http://dx.doi.org/10.3897/phytokeys.213.83632
66BD5D7534F854C788FCDC2BF3CFF1F5.taxon	materials_examined	Additional specimens examined (paratypes). China: Shaanxi Province, Baoji City, Feng County, Tongtianhe National Forest Park, elevation 2430 m a. s. l., 34 ° 14 ' N, 106 ° 33 ' E, 20 Aug 2019, Q. P. Jiang and X. Y. Zhang, JQP 19082004 (photo SZ!).	en	Jiang, Qiu-Ping, Price, Megan, Zhang, Xiang-Yi, He, Xing-Jin (2022): Hansenia trifoliolata, a new species (Apiaceae) from Shaanxi, China. PhytoKeys 213: 79-93, DOI: http://dx.doi.org/10.3897/phytokeys.213.83632, URL: http://dx.doi.org/10.3897/phytokeys.213.83632
