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Issue: Vol. 730 No. 2: 19 Nov. 2025
Type: Article
Published: 2025-11-19
DOI: 10.11646/phytotaxa.730.2.1
Page range: 113-132
Abstract views: 118
PDF downloaded: 9

Salix mishanensis (Salicaceae), a new species from Northeast China

School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
School of Ecology and Nature Conservation, Beijing Forestry University, Beijing 100083, China
Asia-Temperate Salix section Cinerella Floristic Taxonomy Ussuri River willows Eudicots

Abstract

Salix mishanensis, endemic to Heilongjiang Province, China, primarily distributed in the Ussuri River basin, is described and illustrated here. The new species is sympatric with S. bebbiana, S. caprea, S. raddeana, and S. taraikensis and shares morphological similarities with them. It differs from its counterparts in several features: bark fissuring pattern, presence or absence of irregular curvature in perennial branches, indumentum on two-year-old branches and on abaxial surfaces of young and mature leaves, shape of buds and mature leaves, presence of conspicuous stipules, morphology of leaves at the base of pistillate inflorescences, density of pistillate flowers (at full flowering) and capsules along the axis, bract color, pistillate inflorescence length, ovary stipe and style length, and the angle between flowers and the inflorescence axis. Salix mishanensis can be recognized by its non-fissured bark, turgid ovoid-conical buds, smooth adaxial leaf surface, absent or precocious stipules, pistillate flowers at an angle <60° to the rachis, densely arranged capsules, bicolored bracts (white below, black above), ovary stipe 1–2 mm long, and styles 1–1.3 mm long. We assign the new species to S. sect. Cinerella. Furthermore, high-resolution botanical plate, detailed distribution map, and an efficient dichotomous key are provided.

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How to Cite

Zhan, Z., Zhang, Z. & Shang, C. (2025) Salix mishanensis (Salicaceae), a new species from Northeast China. Phytotaxa 730 (2): 113–132. https://doi.org/10.11646/phytotaxa.730.2.1