The floristic composition of grassland of the Opeka Arboretum (Vinica, NW Croatia)

Authors and affiliation

• Valentina Borak Martan Kamaufova ulica 10, 10000 Zagreb
• Renata Šoštarić Division of botany, Department of biology, Faculty of science, University of Zagreb, Marulićev trg 20/II, 10000 Zagreb, Croatia

Abstract

During the vegetation seasons 2008 and 2009 the floristic composition of the grasslands of Opeka Arboretum was surveyed. In total, 276 plant taxa were found, and 223 taxa were recorded for the first time for the investigated area. The taxa were classified into 66 families, the Poaceae (10.51%), Asteraceae (6.52%) and Lamiaceae (6.16%) families appearing among them with a relatively high number of taxa. In the Arboretum Opeka, 12 red-listed native herbaceous plant taxa were found. There were also 36 species protected and 9 species strictly protected by law. Non-indigenous plants made up 14.13% of the flora of the investigated area: 6 archaeophytes, 6 neophytes, 28 cultivated species and 8 of them were invasive alien species. Floristic composition of native herbaceous vegetation in Opeka Arboretum should be maintained by regular mowing of grasslands.

Keywords

vascular flora, grassland, Opeka Arboretum, north-western Croatia

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