Flora of Osoblažsko region

During my floristic research I observed approximately 600 plant species, another 200 are recorded (in literature or herbaria) to be present in Osoblažsko region in some point in past. Herbarium specimens from region are saved mainly in museum in Bruntál (OVMB), some more in Brno (BRNM), České Budějovice (CB), Nový Jičín (NJM), Olomouc (OL, OLM), Opava (OP) and some might be probably scattered in other herbaria in Moravia and Bohemia.

Osoblažsko region is an agricultural landscape with dominance of fields in the east and meadows and forests in the west.

Typical forests in this area are oak-hornbeam forests (with elements of Hercynian, Polonian and also Carpathian types) and acidofilous oak forests. Alder carrs grow close to water (usually near ponds), alluvial forests (ash-alder alluvial forests, hardwood forests of lowland rivers and willow-poplar forests of lowland rivers) by rivers and ravine forest on the slopes. Beech forests (acidofilous, somewhere with elements of herb-rich types) grew only in western part of Osoblažsko with increasing altitude.
Oaks (Quercus robur), hornbeams (Carpinus betulus), limes (Tilia cordata), maples (Acer pseudoplatanus and A. platanoides), cranes (Sorbus aucuparia), birches (Betula pendula), cherry-trees (Prunus avium), chokecherry (Prunus padus) and on damper sites also willows (Salix caprea, S. fragilis, S. pentandra and S. cinerea), ashes (Fraxinus excelsior) and alders (Alnus glutinosa and A. incana) are growing in greenwoods.
Conifers, e.g. pines (Pinus sylvestris), fir-trees (Abies alba), spruces (Picea abies) and larches (Larix decidua), are growing in mixed forests, too.
Non-native tree species, which can be found here, are douglas (Pseudotsuga menziesii), red oak (Quercus rubra) and black locust (Robinia pseudacacia).
Bushes are formed by European Black Elder(Sambucus nigra), sometimes European Red (S. racemosa) too, hazels (Corylus avellana), blackthorns (Prunus spinosa) or honeysuckles (Lonicera xylosteum). Common is also English Broom (Cytisus scoparius), in acidofilous forest also blueberries (Vaccinium myrtillus) or heather (Calluna vulgaris). Rare are mezereons (Daphne mezereum), brooms (Genista tinctoria and G. germanica) and rosemary willows (Salix rosmarinifolia).

Several common herbs (e.g. Campanula patula, Sanguisorba officinalis, Lychnis flos-cuculi, Leucanthemum ircutianum, Trifolium pratense, T. arvense, T. hybridum, Dianthus carthusianorum and D. deltoides, Veronica chamaedrys, Hypericum perforatum, Pimpinella saxifraga, Daucus carota, Hieracium spp., Vicia spp., Alchemilla spp., Potentilla argentea etc.), grasses (e.g. Alopecurus pratensis, Arrhenatherum elatius, Dactylis glomerata, Festuca pratensis, F. rubra, Trisetum flavescens) and often we find the amount of sedges (Carex spp. - e.g. Carex palescens, C. hirta) and bulrushes (Juncus spp.) blooming in the meadows.
Rare plants species, that grow here, are Achillea ptarmica, Aira caryophyllea, Carex hartmanii, Centaurium erythraea, Dactylorhiza majalis, Filago arvensis and F. lutescens, Filipendula vulgaris, Inula salicina, Iris sibirica, Jasione montana, Listera ovata, Myosotis discolor, Potentilla recta etc.

Corydalis cava grow by rivers, Anemone nemorosa, Convallaria majalis, Campanula persicifolia, Luzula luzuloides, Melampyrum nemorosum or Polygonatum multiflorum in forests. Rare plants species, that grew here, are e.g. Anemone ranunculoides, Hepatica nobilis, Lilium martagon or orchids (Cephalantera longifolia, Dactylorhiza sambucina, Orchis mascula or Platanthera bifolia).
There are also interesting weeds: Aphanes arvensis, Consolida regalis, Papaver argemone, Valerianella dentata or Veronica agrestis.
Non-native plant species: Impatiens glandulifera, Echinops sphaerocephalus, Bunias orientalis, Erechtites hieraciifolius) or Reynoutria japonica. In Třemešná village is cultivated and grows wild Commelina communis.

From bryophytes could mention some of very easily determineable species such as: Marchantia polymorpha, Leucobryum glaucum, Polytrichum commune, Mnium sp. or Tortula muralis.

Botanical bibliography (in Czech) can see here.

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