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Issue: Vol. 768 No. 3: 4 Aug. 2026
Type: Article
Published: 2026-08-04
DOI: 10.11646/phytotaxa.768.3.2
Page range: 121-142
Abstract views: 42
PDF downloaded: 4

Polygonum halophilum (Polygonaceae): a new species from semi salty plain of Erzurum, Eastern Anatolia (Türkiye)

Recep Tayyip Erdoğan University; Faculty of Sciences and Arts; Department of Biology; Rize; 53100; Türkiye
Department of Mathematics and Science Education; Gazi Faculty of Education; Gazi University; 06560; Ankara; Türkiye
Department of Forestry; Dereli Vocational School; Giresun University; 28950; Giresun; Türkiye
Recep Tayyip Erdoğan University; Faculty of Sciences and Arts; Department of Biology; Rize; 53100; Türkiye
Department of Biology; Faculty of Science; Karadeniz Technical University; 61080; Trabzon; Türkiye
Eudicots carpology endemic halophytes ITS nrDNA Polygonum

Abstract

Polygonum halophilum is described as a species new to science from Erzurum Province (Eastern Anatolia, Türkiye). It is morphologically similar to P. acerosum and P. cappadocicum, but differs in having densely fibrous roots, elliptic or lanceolate leaf, 2−3-nerved ocreae, and 6 stamens. In addition, the habitat of the newly described species, which is semi-saline and ranges from damp to drying swamp, is distinctly different from that of the closely related taxa. While nuclear ribosomal DNA Internal Transcribed Spacer data support the new described taxa at specific level, they provide insufficient resolution for its sectional classification. This paper also provides an updated key to the relative species in Türkiye, photographic illustrations, and fruit (nut) anatomy, nut and leaf micromorphology and palynological features of the new species together with a discussion of conservation issues.

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How to Cite

Kundakçi, S., Hamzaoğlu, E., Gültepe, M., Makbul, S. & Coşkunçelebi̇ K. (2026) Polygonum halophilum (Polygonaceae): a new species from semi salty plain of Erzurum, Eastern Anatolia (Türkiye). Phytotaxa 768 (3): 121–142. https://doi.org/10.11646/phytotaxa.768.3.2