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Issue: Vol. 696 No. 3: 3 Apr. 2025
Type: Article
Published: 2025-04-03
DOI: 10.11646/phytotaxa.696.3.2
Page range: 217-223
Abstract views: 72
PDF downloaded: 55

Hieracium sourekii (Asteraceae), a new species in the H. senescens aggregate and the discovery of H. subortum in the Sudetes, Poland

University of the National Education Commission, Institute of Biology and Earth Sciences, Podchorążych 2, 30-084 Kraków, Poland
apomictic plant Europe Giant Mountains Hieracium Karkonosze Mountains taxonomy Eudicots

Abstract

Hieracium sourekii is a new, triploid, apomictic species discovered in the Karkonosze Mountains (Giant Mountains) in the Sudetes, Poland. It combines the morphological features of H. alpinum and H. subortum, and belongs to the H. senescens aggregate. The epithet honours Josef Šourek, Czech botanist, an expert on the flora of the Karkonosze Mountains. Hieracium subortum is neotypified from specimens found in a new site in Poland as no original material has been traced. Hieracium sourekii and H. subortum are illustrated with photos of the type specimens and live plants.

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How to Cite

Szeląg, Z. (2025) Hieracium sourekii (Asteraceae), a new species in the H. senescens aggregate and the discovery of H. subortum in the Sudetes, Poland. Phytotaxa 696 (3): 217–223. https://doi.org/10.11646/phytotaxa.696.3.2