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Issue: Vol. 690 No. 1: 26 Feb. 2025
Type: Article
Published: 2025-02-26
DOI: 10.11646/phytotaxa.690.1.8
Page range: 99-106
Abstract views: 298
PDF downloaded: 14

Astragalus helanshanensis, a new plant species from the arid region of the Helan Mountains in northwestern China

College of Forestry and Prataculture, Ningxia University, Yinchuan 750021, China. Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Ningxia University, Yinchuan 750021, China. Key Laboratory for Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Ningxia University, Yinchuan 750021, China.
College of Forestry and Prataculture, Ningxia University, Yinchuan 750021, China. Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Ningxia University, Yinchuan 750021, China. Key Laboratory for Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Ningxia University, Yinchuan 750021, China.
College of Forestry and Prataculture, Ningxia University, Yinchuan 750021, China. Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Ningxia University, Yinchuan 750021, China. Key Laboratory for Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Ningxia University, Yinchuan 750021, China.
Helan Mountain National Nature Reserve of Ningxia, Yinchuan 750021, Ningxia, China
Inner Mongolia Helan Mountain National Nature Protection Bureau, Alxa 750300, China
Inner Mongolia Helan Mountain National Nature Protection Bureau, Alxa 750300, China
College of Forestry and Prataculture, Ningxia University, Yinchuan 750021, China. Ningxia Grassland and Animal Husbandry Engineering Technology Research Center, Ningxia University, Yinchuan 750021, China. Key Laboratory for Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, Ningxia University, Yinchuan 750021, China.
Leguminosae new taxon taxonomy Helan Mountains Astragalus helanshanensis Eudicots

Abstract

Astragalus helanshanensis is a newly identified species found on the floodplain fan at the southern end of the Helanshan Mountains in northwestern China. This leguminous plant is 3–5 cm in height, with extremely short, condensed stems and subappressed hairs throughout. Leaves 2–4 cm long; rachis persistent, leaflets always 2 pairs, mostly inserted on the upper 1/3 of petiole, opposite; 1–3 flowered; flag petal tips retuse, pterygoid limb notched; keeled limb 1/2 as long as petiole; pods ovate-elliptic, 10–12 mm long, densely covered with white subappressed hairs, bipinnate. The discovery of this species enriches the known diversity of Astragalus and provides a scientific basis for the ecological protection and utilization of these plant resources in the Helan Mountains, while further advancing our understanding of the evolution and ecology relationships of the Astragalus genus.

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How to Cite

Yang, B., Wang, W., Wei, S., Liang, Y., Xu, H., Ma, J. & Li, X. (2025) Astragalus helanshanensis, a new plant species from the arid region of the Helan Mountains in northwestern China. Phytotaxa 690 (1): 99–106. https://doi.org/10.11646/phytotaxa.690.1.8