Calamagrostis arundinacea
Calamagrostis epigejos
Calamagrostis villosa
Calamintha nepeta
Calendula officinalis
Callistephus chinensis
Callitriche hamulata
Callitriche sp.
Calluna vulgaris
Caltha palustris
Calystegia sepium
Camelina microcarpa
Campanula alliariifolia
Campanula bononiensis
Campanula glomerata
Campanula glomerata subsp. farinosa
Campanula glomerata subsp. glomerata
Campanula medium
Campanula moravica
Campanula patula
Campanula persicifolia
Campanula rapunculoides
Campanula rotundifolia
Campanula rotundifolia agg.
Campanula sibirica
Campanula sp.
Campanula trachelium
Campsis radicans
Cannabis ruderalis
Cannabis sativa
Cannabis sp.
Capsella bursa-pastoris
Caragana arborescens
Cardamine amara
Cardamine hirsuta
Cardamine impatiens
Cardamine pratensis
Cardamine sp.
Cardaminopsis arenosa
Cardaminopsis arenosa subsp. arenosa
Cardaminopsis arenosa subsp. borbasii
Cardaria draba
Carduus × leptocephalus
Carduus acanthoides
Carduus crispus
Carduus nutans
Carex × vratislaviensis
Carex acuta
Carex acutiformis
Carex alba
Carex brizoides
Carex buekii
Carex caryophyllea
Carex cespitosa
Carex contigua
Carex curvata
Carex diandra
Carex digitata
Carex digitata var. digitata
Carex digitata var. pallens
Carex disticha
Carex divulsa
Carex flacca
Carex flava agg.
Carex hirta
Carex hordeistichos
Carex humilis
Carex chabertii
Carex leersiana
Carex michelii
Carex montana
Carex muricata
Carex muricata agg.
Carex nigra
Carex otrubae
Carex ovalis
Carex pallescens
Carex paniculata
Carex pediformis
Carex pendula
Carex pilosa
Carex pilulifera
Carex praecox
Carex pseudocyperus
Carex remota
Carex riparia
Carex sp.
Carex stenophylla
Carex sylvatica
Carex tomentosa

Carex vesicaria
Carex vulpina
Carlina acaulis
Carlina acaulis subsp. acaulis
Carlina biebersteinii
Carlina vulgaris
Carpinus betulus
Carthamus tinctorius
Carum carvi
Castanea sativa
Catalpa bignonioides
Caucalis platycarpos
Caucalis platycarpos subsp. platycarpos
Celtis occidentalis
Celtis sp.
Centaurea cyanus
Centaurea dealbata
Centaurea jacea
Centaurea jacea agg.
Centaurea jacea subsp. angustifolia
Centaurea jacea subsp. jacea
Centaurea jacea subsp. subjacea
Centaurea montana
Centaurea scabiosa
Centaurea stoebe
Centaurea triumfetii
Centaurium erythraea
Centaurium pulchellum
Centranthus ruber
Cephalanthera damasonium
Cephalanthera longifolia
Cephalanthera rubra
Cerastium arvense
Cerastium arvense subsp. arvense
Cerastium biebersteinii
Cerastium brachypetalum
Cerastium fontanum
Cerastium glomeratum
Cerastium glutinosum
Cerastium holosteoides
Cerastium holosteoides subsp. triviale
Cerastium lucorum
Cerastium pumilum
Cerastium semidecandrum
Cerastium sp.
Cerastium tomentosum
Ceratophyllum demersum
Cerinthe minor
Ceterach officinarum
Ceterach sp.
Cichorium intybus
Circaea × intermedia
Circaea lutetiana
Cirsium × erucagineum
Cirsium × tataricum
Cirsium arvense
Cirsium canum
Cirsium eriophorum
Cirsium oleraceum
Cirsium palustre
Cirsium pannonicum
Cirsium rivulare
Cirsium vulgare
Citrullus lanatus
Clematis recta
Clematis tangutica
Clematis vitalba
Clematis viticella
Clinopodium vulgare
Colchicum autumnale
Colutea arborescens
Commelina communis
Conium maculatum
Consolida ajacis
Consolida orientalis
Consolida regalis
Convallaria majalis
Convolvulus arvensis
Conyza bonariensis
Conyza canadensis
Corallorhiza trifida
Coreopsis sp.
Cornus alba
Cornus mas
Cornus sanguinea
Cornus sanguinea subsp. sanguinea
Cornus sericea
Coronopus squamatus
Corydalis cava
Corydalis lutea

Corydalis solida
Corylus avellana
Corylus colurna
Cosmos bipinnatus
Cotinus coggygria
Cotoneaster horizontalis
Cotoneaster integerrimus
Cotoneaster melanocarpus
Cotoneaster sp.
Crataegus × fallacina
Crataegus × macrocarpa
Crataegus laevigata
Crataegus monogyna
Crataegus pedicellata
Crataegus praemonticola
Crataegus sp.
Crepis biennis
Crepis capillaris
Crepis conyzifolia
Crepis foetida
Crepis foetida subsp. foetida
Crepis foetida subsp. rhoeadifolia
Crepis paludosa
Crepis praemorsa
Crepis setosa
Crepis tectorum
Crocus sp.
Cruciata glabra
Cruciata laevipes
Cryptomeria japonica
Cucubalus baccifer
Cucumis sativus
Cucurbita pepo
Cuscuta campestris
Cuscuta epilinum
Cuscuta epithymum
Cuscuta europaea
Cyclamen purpurascens
Cydonia oblonga
Cymbalaria muralis
Cymbalaria sp.
Cynodon dactylon
Cynoglossum officinale
Cynosurus cristatus
Cyperus fuscus
Cypripedium calceolus
Cystopteris fragilis
Cytisus nigricans
Cytisus procumbens
Cytisus scoparius
Chaenomeles japonica
Chaenomeles speciosa
Chaerophyllum aromaticum
Chaerophyllum aureum
Chaerophyllum bulbosum
Chaerophyllum hirsutum
Chaerophyllum temulum
Chamaecyparis lawsoniana
Chamaecyparis nootkatensis
Chamaecyparis pisifera
Chamaecytisus albus
Chamaecytisus ratisbonensis
Chamaecytisus supinus
Chamaecytisus virescens
Chelidonium majus
Chenopodium album
Chenopodium album agg.
Chenopodium bonus-henricus
Chenopodium botrys
Chenopodium ficifolium
Chenopodium foliosum
Chenopodium glaucum
Chenopodium hybridum
Chenopodium murale
Chenopodium opulifolium
Chenopodium pedunculare
Chenopodium polyspermum
Chenopodium pumilio
Chenopodium rubrum
Chenopodium schraderianum
Chenopodium sp.
Chenopodium strictum
Chenopodium suecicum
Chenopodium urbicum
Chenopodium vulvaria
Chondrilla juncea
Chrysosplenium alternifolium