Occurrence of Arnoseris minima (L.) Schweigger et Koerte (Asteraceae) in Podlasie province (north-eastern Poland)

Anna Bomanowska,Wojciech Adamowski,Dan Wołkowycki

doi:10.5586/aa.2015.029

Abstract

New localities of <em>Arnoseris minima</em> (L.) Schweigger et Koerte (Asteraceae) in the Podlasie region (NE Poland) are presented. The current distribution of the species was established on the basis of the authors’ floristic field studies, revised herbarium materials, published data, and unpublished sources. The collected data enabled us to revise the map of the species’ distribution in the Podlasie region and supplement it with another new 17 localities. The previously established geographic range of species in Poland can now be moved by about 30 km eastwards and 50 km northwards. The identification of new locations of <em>A. minima</em> on the border of its continuous geographical range becomes important in the context of the declining number of localities of this species recently observed across almost the whole of Europe.

Highlights

Arnoseris minima (L.) Schweigger et Koerte (Lamb’s Succory; Asteraceae) is a small annual herb growing up to 35 cm
The identification of new locations of A. minima on the border of its continuous geographical range becomes important in the context of the declining number of localities of this species recently observed across almost the whole of Europe
The gathered data enabled us to revise the cartogram of A. minima distribution in the Podlasie region and supplement it with another 17 localities, including seven from the area of Białowieża Forest and its south-western foreland (Fig. 1, Tab. 1)

Summary

Introduction

Arnoseris minima (L.) Schweigger et Koerte (Lamb’s Succory; Asteraceae) is a small annual herb growing up to 35 cm. Arnoseris minima occurs on arable fields and field margins with poor soil crops, mainly in winter cereals, and less frequently in root crops. It is a characteristic species of Arnoserido-Scleranthetum (Edouard 1925) R. Tx. 1937; Stellarietea mediae class), a subatlantic weed association occurring in rye crops and developing on acid dry soils [5,6] It occasionally grows on sandy fallow ground, disturbed tracksides, and in gravel pits as well as in depressions between inland dunes [7,8,9,10,11]

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