Pioneer vegetation on shallow soils on rocky siliceous outcrops on siliceous rocks of temperate and boreal Europe
Vascular plants: Achillea glaberrima, Aethionema saxatile subsp. saxatile, Aira caryophyllea subsp. caryophyllea, Aira elegantissima, Aira praecox, Allium denudatum, Allium flavum subsp. tauricum, Allium lineare, Allium lusitanicum, Allium podolicum, Allium sphaerocephalon, Alyssum alyssoides, Alyssum turkestanicum, Androsace septentrionalis, Anthemis cretica subsp. carpatica, Anthemis cretica subsp. saxatilis, Aphanes australis, Arabidopsis arenosa subsp. arenosa, Arabidopsis thaliana, Arabis auriculata, Arenaria leptoclados, Arenaria serpyllifolia, Artemisia campestris subsp. campestris, Artemisia dzevanovskyi, Artemisia rupestris, Astragalus cornutus, Astragalus ponticus, Astragalus setosulus, Atocion rupestre, Aurinia petraea, Bassia laniflora, Biscutella arvernensis, Bromus hordeaceus subsp. hordeaceus, Centaurea corcubionensis, Centaurea kosaninii, Centaurea pseudoleucolepis, Centaurea vankovii, Cephalaria uralensis, Cerastium arvense subsp. strictum, Cerastium biebersteinii, Cerastium brachypetalum subsp. brachypetalum, Cerastium brachypetalum subsp. tenoreanum, Cerastium diffusum subsp. diffusum, Cerastium pumilum, Cerastium pumilum subsp. glutinosum, Cerastium semidecandrum, Clinopodium acinos, Clypeola jonthlaspi subsp. jonthlaspi, Crambe grandiflora, Crambe steveniana, Crepis foliosa, Crepis purpurea, Cruciata pedemontana, Cytisus wulfii, Dianthus gratianopolitanus, Dianthus hypanicus, Draba nemorosa, Draba podolica, Draba praecox, Draba verna, Draba verna subsp. spathulata, Drabella muralis, Erodium cicutarium, Euphorbia glabriflora, Festuca arvernensis, Festuca billyi, Festuca oelandica, Filago germanica, Filago lutescens, Filago pyramidata, Gagea bohemica, Galium oelandicum, Galium verum subsp. verum, Globularia vulgaris, Gypsophila fastigiata, Gypsophila glomerata, Gypsophila thyraica, Herniaria hirsuta, Holosteum umbellatum subsp. glutinosum, Holosteum umbellatum subsp. umbellatum, Hornungia petraea, Hypericum linarifolium, Hypochaeris glabra, Jacobaea taurica, Jovibarba globifera subsp. globifera, Jovibarba globifera subsp. hirta, Jovibarba heuffelii, Medicago minima, Minuartia laricifolia subsp. laricifolia, Minuartia setacea, Mollugo cerviana, Muscari botryoides, Myosotis discolor subsp. discolor, Myosotis ramosissima, Myosotis stricta, Neoschischkinia truncatula subsp. durieui, Noccaea perfoliata, Odontarrhena borzaeana, Odontarrhena markgrafii, Odontarrhena muralis, Onobrychis pallasii, Onosma arenaria, Ornithogalum broteroi, Papaver dubium subsp. austromoravicum, Papaver lecoqii, Petrorhagia prolifera, Petrorhagia saxifraga, Phalacrocarpum oppositifolium subsp. anomalum, Pilosella dichotoma, Pilosella officinarum subsp. officinarum, Plantago arenaria, Poa badensis, Poa bulbosa subsp. bulbosa, Poa perconcinna, Polycnemum arvense, Potentilla argentea, Potentilla hirta, Potentilla tabernaemontani, Reseda phyteuma subsp. phyteuma, Rumex acetosella subsp. acetosella, Rumex acetosella subsp. acetoselloides, Rumex acetosella subsp. angiocarpus, Rumex tuberosus subsp. turcomanicus, Salvia scabiosifolia, Saxifraga aspera, Saxifraga bulbifera, Saxifraga fragosoi, Saxifraga tridactylites, Scleranthus annuus subsp. annuus, Scleranthus annuus subsp. collinus, Scleranthus perennis subsp. perennis, Scleranthus perennis subsp. polycnemoides, Scleranthus polycarpos, Scleranthus verticillatus, Scrophularia donetzica, Scrophularia granitica, Sedum acre, Sedum album, Sedum amplexicaule subsp. amplexicaule, Sedum amplexicaule subsp. tenuifolium, Sedum anglicum subsp. anglicum, Sedum anglicum subsp. pyrenaicum, Sedum dasyphyllum subsp. granatense, Sedum gypsicola, Sedum hispanicum, Sedum montanum subsp. montanum, Sedum montanum subsp. orientale, Sedum pruinatum, Sedum rupestre, Sedum sediforme, Sedum sexangulare, Sedum spurium, Sedum stefco, Sedum urvillei, Sempervivum arachnoideum subsp. arachnoideum, Sempervivum arachnoideum subsp. tomentosum, Sempervivum dolomiticum, Sempervivum grandiflorum, Sempervivum minutum, Sempervivum montanum subsp. burnatii, Sempervivum montanum subsp. montanum, Sempervivum montanum subsp. stiriacum, Sempervivum tectorum, Sempervivum vicentei, Sempervivum zeleborii, Seseli lehmannii, Sideritis montana, Silene alpestris, Silene compacta, Silene conica, Silene sytnikii, Silene uniflora subsp. petraea, Sisymbrium supinum, Spergula pentandra, Spergula viscosa, Stachys angustifolia, Stachys recta subsp. baldaccii, Stachys scardica, Stipa eriocaulis subsp. lithophila, Stipa novakii, Stipa oreades, Thalictrum petaloideum, Thymus caespititius, Thymus calcareus, Thymus praecox subsp. ligusticus, Thymus praecox subsp. polytrichus, Thymus serpyllum subsp. serpyllum, Trifolium arvense, Trifolium campestre, Trifolium dalmaticum, Trifolium trichopterum, Tuberaria guttata, Tulipa biebersteiniana, Valeriana tuberosa, Valerianella carinata, Valerianella eriocarpa, Ventenata dubia, Veronica arvensis, Veronica dillenii, Veronica praecox, Veronica triphyllos, Veronica verna subsp. verna, Vicia lathyroides, Viola arvensis subsp. megalantha, Viola kitaibeliana, Viola tricolor subsp. alpestris