List of species

Abutilon grandifolium, Abutilon pictum, Abutilon theophrasti, Acacia baileyana, Acacia cupularis, Acacia cyclops, Acacia dealbata, Acacia decurrens, Acacia dodonaeifolia, Acacia elata, Acacia erioloba, Acacia farnesiana, Acacia howittii, Acacia iteaphylla, Acacia karroo, Acacia longifolia subsp. longifolia, Acacia longifolia subsp. sophorae, Acacia mollifolia, Acacia paradoxa, Acacia podalyriifolia, Acacia prominens, Acacia pycnantha, Acacia retinodes var. retinodes, Acacia rostellifera, Acacia saligna, Acacia schinoides, Acaena agnipila, Acaena × anserovina, Acaena echinata, Acaena novae-zelandiae, Acaena ovina, Acanthus mollis, Acer negundo, Acer palmatum, Acer pseudoplatanus, Acetosa sagittata, Acetosa vesicaria, Acetosella vulgaris, Achillea distans subsp. tanacetifolia, Achillea millefolium, Achnatherum brachychaetum, Achnatherum caudatum, Acroptilon repens, Actinotus helianthi, Adonis microcarpa, Aegilops cylindrica, Aegopodium podagraria, Aeonium arboreum, Aeonium haworthii, Aeschynomene indica, Agapanthus praecox subsp. orientalis, Agave americana, Ageratina adenophora, Ageratina ligustrina, Ageratina riparia, Ageratum conyzoides, Ageratum houstonianum, Agonis flexuosa, Agonis juniperina, Agonis parviceps, Agropogon littoralis see Polypogon littoralis, Agropyron elongatum see Lophopyrum ponticum, Agrostemma githago, Agrostis avenacea var. avenacea see Lachnagrostis filiformis, Agrostis capillaris, Agrostis gigantea, Agrostis stolonifera, Agrostis viridis see Polypogon viridis, Ailanthus altissima, Aira caryophyllea, Aira cupaniana, Aira elegantissima, Aira praecox, Aira provincialis, Ajuga reptans, Alhagi maurorum, Alisma lanceolatum, Alisma plantago-aquatica, Alliaria petiolata, Allium ampeloprasum, Allium cepa, Allium neapolitanum, Allium oleraceum, Allium paniculatum subsp. paniculatum, Allium porrum, Allium sativum, Allium schoenoprasum, Allium triquetrum, Allium vineale, Alnus cordata, Alnus glutinosa, Alnus rubra, Aloe arborescens, Aloe ciliaris, Aloe maculata, Aloe saponaria see A. maculata, Aloe vera, Alopecurus aequalis, Alopecurus geniculatus, Alopecurus myosuroides, Alopecurus pratensis, Alstroemeria aurea, Alstroemeria pulchella, Alternanthera angustifolia, Alternanthera denticulata, Alternanthera nana, Alternanthera nodiflora, Alternanthera philoxeroides, Alternanthera pungens, Alyssum linifolium, Alyssum maritimum see Lobularia maritima, Amaranthus albus, Amaranthus caudatus, Amaranthus cruentus, Amaranthus deflexus, Amaranthus graecizans subsp. silvestris, Amaranthus hybridus, Amaranthus lividus, Amaranthus macrocarpus var. macrocarpus, Amaranthus macrocarpus var. pallidus, Amaranthus muricatus, Amaranthus powellii, Amaranthus quitensis, Amaranthus retroflexus, Amaranthus viridis, Amaryllis belladonna, Ambrosia artemisiifolia, Ambrosia confertiflora, Ambrosia psilostachya, Ambrosia tenuifolia, Ammi majus, Ammi visnaga, Ammobium alatum, Ammophila arenaria, Amsinckia calycina, Amsinckia intermedia, Amsinckia lycopsoides, Amsinckia menziesii, Anagallis arvensis, Anagallis minima, Anchusa arvensis, Anchusa capensis, Andropogon virginicus, Anethum graveolens, Angophora costata, Anomatheca laxa see Freesia laxa subsp. laxa, Anredera cordifolia, Anthemis arvensis, Anthemis cotula, Anthemis tinctoria, Anthoxanthum aristatum, Anthoxanthum odoratum, Aphanes arvensis, Aphanes microcarpa, Apium graveolens, Aponogeton distachyos, Aptenia cordifolia, Aquilegia vulgaris, Arabidopsis thaliana, Araujia sericifera, Arbutus unedo, Arctium lappa, Arctium minus, Arctotheca calendula, Arctotheca populifolia, Arctotheca prostrata, Arctotis stoechadifolia, Arctotis venusta, Arenaria leptoclados, Arenaria serpyllifolia subsp. serpyllifolia, Argemone ochroleuca var. ochroleuca, Argyranthemum foeniculaceum see A. frutescens subsp. foeniculaceum, Argyranthemum frutescens subsp. foeniculaceum, Argyranthemum frutescens subsp. frutescens, Aristea ecklonii, Arrhenatherum elatius var. bulbosum, Arrhenatherum elatius var. elatius, Artemisia absinthium, Artemisia arborescens, Artemisia verlotiorum, Arum italicum, Arundinaria spp., Arundinaria simonii, Arundo donax, Asclepias curassavica, Asparagus aethiopicus, Asparagus asparagoides, Asparagus declinatus, Asparagus officinalis, Asparagus plumosus, Asparagus scandens, Asparagus setaceus see A. plumosus, Asparagus virgatus, Asphodelus fistulosus, Astartea fascicularis, Astartea heteranthera, Aster novi-belgii, Aster subulatus, Asystasia gangetica subsp. micrantha, Atriplex australasica, Atriplex hortensis, Atriplex patula, Atriplex prostrata, Atriplex semibaccata, Atriplex spinibractea, Atriplex suberecta, Atropa belladonna, Austrocylindropuntia cylindrica, Austrocynoglossum latifolium, Austrofestuca littoralis, Avellinia michelii, Avena barbata, Avena fatua, Avena sterilis, Axonopus affinis see A. fissifolius, Axonopus fissifolius, Azolla filiculoides, Azolla pinnata

Babiana angustifolia, Babiana nana, Babiana stricta see B. angustifolia, Babiana tubulosa, Baccharis halimifolia, Baccharis pingraea, Baeometra uniflora, Ballota nigra subsp. foetida, Barbarea intermedia, Barbarea verna, Bartsia trixago, Bassia hyssopifolia, Bassia scoparia, Batrachium trichophyllum, Bellardia trixago see Bartsia trixago, Bellis perennis, Berberis aristata, Berberis darwinii, Berberis vulgaris, Berkheya rigida, Berula erecta, Beta vulgaris subsp. maritima, Beta vulgaris subsp. vulgaris, Bidens pilosa, Bidens subalternans, Bidens tripartita, Bifora testiculata, Billardiera heterophylla, Blackstonia perfoliata, Boerhavia dominii, Borago officinalis, Bothriochloa macra, Brachypodium distachyon, Brasenia schreberi, Brassica fruticulosa, Brassica × juncea, Brassica × napus, Brassica nigra, Brassica oleracea, Brassica rapa, Brassica rapa var. rapa, Brassica rapa var. sylvestris, Brassica tournefortii, Briza maxima, Briza minor, Briza subaristata, Bromus arenarius, Bromus catharticus, Bromus diandrus, Bromus hordeaceus subsp. hordeaceus, Bromus hordeaceus subsp. molliformis, Bromus madritensis, Bromus molliformis see B. hordeaceus subsp. molliformis, Bromus mollis see B. hordeaceus subsp. hordeaceus, Bromus rubens, Brugmansia × candida, Bryophyllum delagoense, Bryophyllum pinnatum, Buddleja davidii, Buddleja dysophylla, Buddleja globosa, Buddleja madagascariensis, Buglossoides arvensis, Bupleurum lancifolium, Bupleurum semicompositum, Bursaria spinosa

Cabomba caroliniana, Caesalpinia decapetala, Caesalpinia gilliesii, Cakile edentula, Cakile maritima, Calendula arvensis, Calendula officinalis, Calendula palaestina, Calepina irregularis, Calicotome spinosa, Callistachys lanceolata, Callitriche hamulata, Callitriche marginata, Callitriche palustris, Callitriche stagnalis, Callitris endlicheri, Callitris rhomboidea, Calluna vulgaris, Calotis cuneifolia, Calotis erinacea, Calotis hispidula, Calotis lappulacea, Calotis scapigera, Calotropis procera, Calystegia sepium, Calystegia silvatica, Camelina alyssum, Canna × generalis, Canna indica, Cannabis sativa, Capsella bursa-pastoris, Cardamine corymbosa, Cardamine flexuosa, Cardamine hirsuta, Cardaria draba see Lepidium draba, Cardiospermum grandiflorum, Cardiospermum halicacabum var. halicacabum, Carduus acanthoides, Carduus nutans subsp. nutans, Carduus pycnocephalus, Carduus tenuiflorus, Carex albula, Carex appressa, Carex buchananii, Carex comans, Carex disticha, Carex divisa, Carex divulsa subsp. divulsa, Carex flacca, Carex flagellifera, Carex inversa, Carex longebrachiata, Carex otrubae, Carex ovalis, Carex pendula, Carex punctata, Carex testacea, Carpobrotus aequilaterus, Carpobrotus edulis, Carrichtera annua, Carthamus dentatus, Carthamus glaucus, Carthamus lanatus, Carthamus leucocaulos, Carthamus tinctorius, Cassia see Senna, Cassinia aculeata, Cassinia arcuata, Cassinia laevis, Cassinia longifolia, Cassinia quinquefaria, Cassytha melantha, Cassytha pubescens, Catapodium rigidum, Catharanthus roseus, Celtis australis, Celtis occidentalis, Celtis sinensis, Cenchrus ciliaris, Cenchrus echinatus, Cenchrus incertus, Cenchrus longispinus, Centaurea aspera, Centaurea calcitrapa, Centaurea cyanus, Centaurea jacea, Centaurea maculosa, Centaurea melitensis, Centaurea montana, Centaurea nigra, Centaurea paniculata, Centaurea solstitialis, Centaurium erythraea, Centaurium maritimum, Centaurium pulchellum, Centaurium spicatum, Centaurium tenuiflorum, Centella asiatica, Centella cordifolia, Centranthus rubra subsp. rubra, Cerastium balearicum, Cerastium comatum, Cerastium diffusum, Cerastium fontanum subsp. vulgare, Cerastium glomeratum, Cerastium holosteoides see C. fontanum subsp. vulgare, Cerastium pumilum, Cerastium semidecandrum, Cerastium vulgare see C. fontanum subsp. vulgare, Ceratophyllum demersum, Cestrum aurantiacum, Cestrum elegans, Cestrum nocturnum, Cestrum parqui, Chamaecytisus palmensis, Chamaecytisus proliferus see Chamaecytisus palmensis, Chamaemelum nobile, Chamaesyce dallachyana, Chamaesyce drummondii, Chamaesyce maculata, Chamaesyce nutans, Chamaesyce prostrata, Chamaesyce supina, Chasmanthe bicolor, Chasmanthe floribunda, Cheilanthes austrotenuifolia, Cheiranthus cheiri see Erysimum cheiri, Chenopodium album, Chenopodium ambrosioides, Chenopodium carinatum, Chenopodium cristatum, Chenopodium glaucum, Chenopodium macrospermum, Chenopodium multifidum, Chenopodium murale, Chenopodium pumilio, Chenopodium vulvaria, Chloris gayana, Chloris truncata, Chloris virgata, Chlorophytum comosum, Chondrilla juncea, Chorispora tenella, Chrozophora tinctoria, Chrysanthemoides monilifera subsp. monilifera, Chrysanthemoides monilifera subsp. rotundata, Chrysanthemum coronarium, Cicendia filiformis, Cicendia quadrangularis, Cichorium endivia, Cichorium intybus, Cineraria lyrata, Cinnamomum camphora, Cirsium acarna see Picnomon acarna, Cirsium arvense, Cirsium vulgare, Cistus inflatus, Cistus monspeliensis, Cistus salviifolius, Citrullus colocynthis, Citrullus lanatus, Claytonia perfoliata, Clematis flammula, Clematis vitalba, Clinopodium vulgare, Colchicum autumnale, Coleonema pulchellum, Collomia grandiflora, Colocasia esculenta, Commelina africana, Commelina benghalensis, Commelina cyanea, Conicosia pugioniformis, Conium maculatum, Conringia orientalis, Consolida ajacis, Consolida ambigua see C. ajacis, Convolvulus arvensis, Convolvulus erubescens s.lat., Conyza albida see C. sumatrensis, Conyza bilbaoana, Conyza bonariensis, Conyza canadensis var. canadensis, Conyza chilensis see C. primulifolia, Conyza parva, Conyza primulifolia, Conyza sumatrensis, Coprosma repens, Coprosma robusta, Cordyline australis, Coreopsis lanceolata, Coriandrum sativum, Cornus capitata, Coronilla varia see Securigera varia, Coronopus didymus see Lepidium didymum, Coronopus squamatus see Lepidium squamatum, Cortaderia jubata, Cortaderia richardii, Cortaderia selloana, Cosmos bipinnatus, Cotoneaster divaricatus, Cotoneaster franchetii, Cotoneaster glaucophyllus var. serotinus, Cotoneaster horizontalis, Cotoneaster lacteus, Cotoneaster microphyllus, Cotoneaster pannosus, Cotoneaster rotundifolius, Cotoneaster salicifolius, Cotoneaster simonsii, Cotula australis, Cotula bipinnata, Cotula coronopifolia, Cotyledon orbiculata, Crassocephalum crepidioides, Crassula alata, Crassula ericoides, Crassula subsp. ericoides, Crassula helmsii, Crassula multicava subsp. multicava, Crassula muscosa var. muscosa, Crassula natans var. minus, Crassula sarmentosa var. sarmentosa, Crassula sieberiana, Crassula tetragona subsp. robusta, Crataegus azarolus, Crataegus laevigata, Crataegus monogyna, Crataegus × sinaica, Crepis barbata see Tolpis barbata, Crepis capillaris, Crepis foetida var. foetida, Crepis setosa, Crepis vesicaria subsp. taraxacifolia, Critesion see Hordeum, Crocosmia × crocosmiiflora, Crotalaria agatiflora subsp. agatiflora, Crotalaria incana, Crotalaria lanceolata subsp. lanceolata, Croton setiger, Cucumis myriocarpus, Cucurbita maxima, Cupressus macrocarpa, Cupressus sempervirens, Curcuma longa, Cuscuta australis, Cuscuta campestris, Cuscuta epithymum, Cuscuta planiflora, Cuscuta racemosa, Cuscuta suaveolens, Cuscuta tasmanica, Cuscuta victoriana, Cyathea cooperi, Cyclospermum leptophyllum, Cylindropuntia imbricata var. imbricata, Cylindropuntia tunicata var. tunicata, Cymbalaria muralis, Cymbonotus lawsonianus, Cymbonotus preissianus, Cynara cardunculus, Cynara scolymus, Cynodon dactylon, Cynodon incompletus, Cynodon transvaalensis, Cynoglossum australe, Cynoglossum creticum, Cynoglossum suaveolens, Cynosurus cristatus, Cynosurus echinatus, Cyperus albostriatus, Cyperus brevifolius, Cyperus congestus, Cyperus difformis, Cyperus eragrostis, Cyperus hamulosus, Cyperus papyrus, Cyperus reflexus, Cyperus rotundus, Cyperus tenellus, Cyperus teneristolon, Cyrtomium falcatum, Cytisus multiflorus, Cytisus scoparius

Dactylis glomerata, Dactyloctenium aegyptium, Dactyloctenium radulans, Damasonium minus, Danthonia decumbens, Datura ferox, Datura inoxia, Datura stramonium, Datura wrightii, Daucus carota, Daucus glochidiatus, Delairea odorata, Dendrocnide excelsa, Descurainia sophia, Desmazeria rigida see Catapodium rigidum, Dianella revoluta, Dianthus armeria, Dianthus barbatus, Dichondra repens, Dierama pendulum, Dierama pulcherrimum, Dietes bicolor, Dietes grandiflora, Dietes iridioides, Digitalis purpurea, Digitaria aequiglumis, Digitaria ciliaris, Digitaria ischaemum, Digitaria sanguinalis, Digitaria violascens, Dimorphotheca pluvialis, Diplachne fusca, Diplachne uninervia, Diplotaxis muralis, Diplotaxis tenuifolia, Dipogon lignosus, Dipsacus fullonum subsp. fullonum, Disa bracteata, Disphyma crassifolium subsp. clavellatum, Dissocarpus paradoxus, Dittrichia graveolens, Drosanthemum candens, Duchesnea indica see Potentilla indica

Ecballium elaterium, Echinochloa colona, Echinochloa crus-galli, Echinochloa esculenta, Echinochloa muricata subsp. microstachya, Echinochloa oryzoides, Echinopogon caespitosus, Echinopogon ovatus, Echinops sphaerocephalus, Echium candicans, Echium fastuosum see E. candicans, Echium italicum, Echium plantagineum, Echium vulgare, Eclipta platyglossa, Egeria densa, Ehrharta calycina, Ehrharta erecta, Ehrharta longiflora, Ehrharta villosa var. maxima, Eichhornia crassipes, Eleocharis acuta, Eleocharis sphacelata, Elettaria cardamomum, Eleusine indica, Eleusine tristachya, Elodea canadensis, Elytrigia pungens, Elytrigia repens, Emex australis, Emex spinosa, Epilobium billardierianum, Epilobium ciliatum, Epilobium hirsutum, Epilobium hirtigerum, Epilobium nummulariifolium, Equisetum arvense, Equisetum hyemale, Equisetum ramosissimum, Eragrostis cilianensis, Eragrostis curvula, Eragrostis mexicana, Eragrostis minor, Eragrostis pilosa, Eragrostis superba, Eragrostis tef, Eragrostis tenuifolia, Erechtites valerianifolia, Eremocarpus setigerus see Croton setiger, Erica andromediflora, Erica arborea, Erica baccans, Erica caffra, Erica cinerea, Erica discolor, Erica glandulosa, Erica lusitanica, Erica melanthera, Erica quadrangularis, Erica scoparia, Erica × willmorei, Erigeron karvinskianus, Eriobotrya japonica, Erodium aureum, Erodium botrys, Erodium brachycarpum, Erodium cicutarium, Erodium crinitum, Erodium malacoides, Erodium moschatum, Erophila verna subsp. praecox, Erophila verna subsp. verna, Eruca sativa see E. vesicaria subsp. sativa, Eruca vesicaria subsp. sativa, Eryngium maritimum, Eryngium ovinum, Eryngium pandanifolium, Erysimum cheiri, Erythrina crista-galli, Erythrina × sykesii, Eschscholzia californica, Eucalyptus astringens, Eucalyptus botryoides, Eucalyptus cladocalyx, Euchiton collinus, Euchiton gymnocephalus see E. collinus, Euchiton involucratus, Euchiton sphaericus, Euphorbia characias subsp. wulfenii, Euphorbia cyparissias, Euphorbia dendroides, Euphorbia falcata, Euphorbia helioscopia, Euphorbia lathyris, Euphorbia marginata, Euphorbia paralias, Euphorbia peplus, Euphorbia platyphyllos, Euphorbia pulcherrima, Euphorbia terracina, Euryops abrotanifolius, Euryops chrysanthemoides

Facelis retusa, Fagopyrum esculentum, Fallopia × bohemica, Fallopia convolvulus, Fallopia japonica, Fallopia sachalinensis, Ferraria crispa, Festuca arundinacea, Festuca elatior see F. arundinacea, Festuca gautieri, Festuca pratensis, Festuca rubra, Ficaria verna, Ficus carica, Ficus pumila, Filago gallica see Logfia gallica, Foeniculum vulgare, Fraxinus angustifolia, Fraxinus angustifolia subsp. angustifolia, Fraxinus angustifolia subsp. oxycarpa, Fraxinus excelsior, Fraxinus ornus, Freesia alba, Freesia hybrid, Freesia laxa subsp. laxa, Freesia leichtlinii, Fuchsia magellanica, Fumaria bastardii, Fumaria capreolata, Fumaria densiflora, Fumaria indica, Fumaria muralis subsp. muralis, Fumaria officinalis subsp. officinalis, Fumaria officinalis subsp. wirtgenii, Fumaria parviflora var. parviflora, Furcraea foetida

Galaxia fugacissima see Moraea fugacissima, Galenia pubescens var. pubescens, Galenia secunda, Galinsoga parviflora, Galium aparine, Galium divaricatum, Galium murale, Galium spurium, Galium tricornutum, Gamochaeta americana, Gamochaeta calviceps, Gamochaeta purpurea, Gamochaeta spicata, Gastridium phleoides, Gaudinia fragilis, Gaura lindheimeri, Gaura parviflora, Gazania linearis, Gazania rigens, Geissorhiza aspera, Genista canariensis, Genista linifolia, Genista monspessulana, Genista × spachiana, Genista stenopetala, Genista tinctoria, Geranium dissectum, Geranium molle var. molle, Geranium purpureum, Geranium subsp. purpureum, Geranium robertianum, Geranium yeoi, Gladiolus angustus, Gladiolus carneus, Gladiolus communis, Gladiolus gueinzii, Gladiolus tristis, Gladiolus undulatus, Glaucium corniculatum, Glaucium flavum, Glechoma hederacea, Gleditsia triacanthos, Gloriosa superba, Glyceria declinata, Glyceria maxima, Glyceria notata, Glyceria plicata see G. notata, Glycyrrhiza acanthocarpa, Glycyrrhiza glabra, Gnaphalium polycaulon, Gnidia squarrosa, Gomphocarpus cancellatus, Gomphocarpus fruticosus, Gomphocarpus physocarpus, Gomphrena celosioides, Grevillea robusta, Grevillea rosmarinifolia, Gymnocoronis spilanthoides, Gynandriris setifolia see Moraea setifolia, Gypsophila tubulosa

Hainardia cylindrica, Hakea drupacea, Hakea elliptica, Hakea laurina, Hakea salicifolia, Hakea sericea, Hakea suaveolens, Haloragis aspera, Haloragis glauca forma glauca, Haloragis heterophylla, Hedera helix, Hedychium gardnerianum, Hedypnois cretica, Hedypnois rhagadioloides subsp. cretica See H. cretica, Helianthus annuus, Helianthus ciliaris, Helianthus tuberosus, Heliotropium amplexicaule, Heliotropium curassavicum, Heliotropium europaeum, Heliotropium supinum, Helminthotheca echioides, Hemarthria uncinata var. uncinata, Hemizonia pungens, Heracleum mantegazzianum, Herbertia lahue, Herniaria cinerea, Herniaria glabra, Herniaria hirsuta, Heterotheca grandiflora, Hexaglottis lewisiae see Moraea lewisiae, Hibiscus trionum var. trionum, Hieracium aurantiacum, Hieracium pilosella, Hieracium praealtum, Hirschfeldia incana, Holcus annuus, Holcus lanatus, Holcus mollis, Holcus setosus see H. annuus, Homeria see Moraea, Hordeum distichon, Hordeum glaucum, Hordeum hystrix, Hordeum leporinum, Hordeum marinum, Hordeum secalinum, Hordeum vulgare, Hornungia procumbens see Hymenolobus procumbens, Humulus lupulus, Hyacinthoides non-scripta, Hydrilla verticillata, Hydrocleys nymphoides, Hydrocotyle asiatica see Centella asiatica, Hydrocotyle bonariensis, Hydrocotyle laxiflora, Hydrocotyle ranunculoides, Hydrocotyle tripartita, Hygrophila costata, Hymenolobus procumbens, Hyparrhenia hirta, Hypecoum pendulum, Hypericum androsaemum, Hypericum calycinum, Hypericum canariense, Hypericum elodes, Hypericum gramineum, Hypericum grandifolium, Hypericum hircinum, Hypericum humifusum, Hypericum × inodorum, Hypericum japonicum, Hypericum × moserianum, Hypericum patulum, Hypericum perforatum, Hypericum tetrapterum, Hypochaeris glabra, Hypochaeris microcephala var. albiflora, Hypochaeris radicata

Ibicella lutea see Proboscidea lutea, Ilex aquifolium, Impatiens balfourii, Impatiens walleriana, Imperata cylindrica, Ipheion uniflorum, Ipomoea batatas, Ipomoea cairica, Ipomoea hederifolia, Ipomoea indica, Ipomoea purpurea, Iris foetidissima, Iris germanica, Iris pseudacorus, Isolepis cernua, Isolepis hystrix, Isolepis marginata, Isolepis prolifera, Isolepis sepulcralis, Iva axillaris subsp. robustior, Ixia campanulata, Ixia flexuosa, Ixia maculata, Ixia paniculata, Ixia polystachya, Ixia viridiflora

Jacaranda mimosifolia, Jarava plumosa, Juncus acuminatus, Juncus acutus subsp. acutus, Juncus articulatus, Juncus bufonius, Juncus bulbosus, Juncus caespiticius, Juncus capensis var. macranthus, Juncus capillaceus, Juncus capitatus, Juncus cognatus, Juncus effusus, Juncus fontanesii, Juncus gerardii, Juncus holoschoenus, Juncus imbricatus, Juncus inflexus, Juncus microcephalus, Juncus oxycarpus, Juncus tenuis

Kickxia commutata subsp. graeca, Kickxia elatine subsp. crinita, Kickxia elatine subsp. elatine, Kickxia spuria subsp. integrifolia, Kniphofia uvaria, Kunzea spp., Kunzea ericoides

Lachenalia aloides, Lachenalia bulbifera, Lachenalia mutabilis, Lachnagrostis filiformis, Lactuca saligna, Lactuca sativa, Lactuca serriola, Lagarosiphon major, Lagunaria patersonia subsp. patersonia, Lagurus ovatus, Lamarckia aurea, Lamium amplexicaule, Lamium galeobdolon subsp. argentatum, Lamium purpureum, Lampranthus multiradiatus, Lampranthus tegens, Lantana camara, Lantana montevidensis, Lapsana communis subsp. communis, Lathyrus angulatus, Lathyrus latifolius, Lathyrus odoratus, Lathyrus sativus, Lathyrus tingitanus, Lavandula dentata, Lavandula stoechas, Lavatera arborea see Malva dendromorpha, Lavatera cretica see Malva linnaei, Lavatera plebeia see Malva australiana, Leersia oryzoides, Leonotis leonurus, Leonotis nepetifolia, Leontodon taraxacoides, Leontodon taraxacoides subsp. taraxacoides, Leonurus sibiricus, Lepidium africanum, Lepidium bonariense, Lepidium campestre, Lepidium didymum, Lepidium draba, Lepidium latifolium, Lepidium perfoliatum, Lepidium sativum, Lepidium squamatum, Lepidium strictum, Lepidium virginicum, Leptochloa digitata, Leptospermum laevigatum, Leucanthemum maximum, Leucanthemum vulgare, Leucojum aestivum, Leycesteria formosa, Ligustrum lucidum, Ligustrum ovalifolium, Ligustrum sinense, Ligustrum vulgare, Lilaea scilloides, Lilium formosanum, Lilium lancifolium, Limonium australe, Limonium companyonis, Limonium hyblaeum, Limonium lobatum, Limonium otolepis, Limonium sinuatum, Linaria arvensis, Linaria dalmatica, Linaria genistifolia subsp. dalmatica See Linaria dalmatica, Linaria incarnata, Linaria pelisseriana, Linaria vulgaris, Linum bienne, Linum catharticum, Linum marginale, Linum strictum subsp. strictum, Linum trigynum, Linum usitatissimum, Lissanthe strigosa, Lithospermum arvense see Buglossoides arvensis, Lobelia concolor see Pratia concolor, Lobelia erinus, Lobelia purpurascens See Pratia purpurascens, Lobularia maritima, Logfia gallica, Lolium multiflorum, Lolium perenne, Lolium rigidum, Lolium temulentum, Lonicera fragrantissima, Lonicera japonica, Lophopyrum elongatum see L. ponticum, Lophopyrum ponticum, Lophostemon confertus, Lotus angustissimus, Lotus australis, Lotus corniculatus var. corniculatus, Lotus corniculatus var. tenuifolius, Lotus creticus, Lotus cruentus, Lotus preslii, Lotus suaveolens, Lotus subbiflorus see L. suaveolens, Lotus uliginosus, Ludwigia longifolia, Ludwigia palustris, Ludwigia peploides subsp. montevidensis, Ludwigia peruviana, Lunaria annua, Lupinus albus, Lupinus angustifolius, Lupinus arboreus, Lupinus cosentinii, Lupinus luteus, Lupinus pilosus, Lupinus polyphyllus, Lychnis chalcedonica, Lychnis coronaria, Lycium afrum, Lycium australe, Lycium barbarum, Lycium ferocissimum, Lycopersicon esculentum, Lysimachia nummularia, Lysimachia vulgaris, Lythrum hyssopifolia, Lythrum junceum, Lythrum salicaria

Macfadyena unguis-cati, Maclura cochinchinensis, Maclura pomifera, Macroptilium atropurpureum, Madia sativa, Mahonia aquifolium, Mahonia leschenaultii, Mahonia pinnata, Malcolmia africana, Malus domestica see M. pumila, Malus pumila, Malva australiana, Malva dendromorpha, Malva linnaei, Malva moschata, Malva neglecta, Malva nicaeensis, Malva parviflora, Malva sylvestris, Malva verticillata, Malvastrum americanum, Malvella leprosa, Mandevilla laxa, Mantisalca salmantica, Marrubium vulgare, Marsilea drummondii, Marsilea mutica, Matricaria matricarioides, Matricaria perforata see Tripleurospermum inodorum, Matricaria recutita, Matthiola incana, Matthiola longipetala subsp. bicornis, Maurandya barclaiana, Medicago arabica, Medicago arborea, Medicago intertexta, Medicago laciniata var. laciniata, Medicago lupulina, Medicago minima, Medicago orbicularis, Medicago polymorpha, Medicago praecox, Medicago sativa subsp. sativa, Medicago scutellata, Medicago tornata, Medicago truncatula, Melaleuca armillaris, Melaleuca diosmifolia, Melaleuca incana, Melaleuca nesophila, Melia azedarach, Melianthus comosus, Melianthus major, Melilotus albus, Melilotus indicus, Melilotus messanensis see M. siculus, Melilotus officinalis, Melilotus siculus, Melinis minutiflora, Melinis repens, Melissa officinalis, Mentha aquatica, Mentha longifolia, Mentha × piperita, Mentha pulegium, Mentha × rotundifolia, Mentha spicata, Mentha suaveolens, Mercurialis annua, Mesembryanthemum crystallinum, Mesembryanthemum nodiflorum, Metrosideros excelsa, Micropterum papulosum, Mimulus guttatus, Mimulus moschatus, Minuartia mediterranea, Mirabilis jalapa, Miscanthus sinensis, Misopates orontium, Modiola caroliniana, Moenchia erecta, Molineriella minuta, Mollugo verticillata, Monadenia bracteata see Disa bracteata, Monopsis debilis, Monopsis simplex see Monopsis debilis, Moraea flaccida, Moraea fugacissima, Moraea lewisiae, Moraea miniata, Moraea ochroleuca, Moraea setifolia, Moraea spathulata, Moraea vegeta, Morus alba, Morus nigra, Muehlenbeckia florulenta, Muraltia heisteria, Muscari armeniacum, Myagrum perfoliatum, Myosotis arvensis, Myosotis caespitosa see M. laxa subsp. caespitosa, Myosotis discolor, Myosotis laxa subsp. caespitosa, Myosotis sylvatica, Myriophyllum aquaticum, Myrsiphyllum see Asparagus

Nandina domestica, Narcissus pseudonarcissus, Narcissus tazetta, Nassella charruana, Nassella hyalina, Nassella leucotricha, Nassella megapotamia, Nassella neesiana, Nassella tenuissima, Nassella trichotoma, Nasturtium microphyllum, Nasturtium officinale, Navarretia squarrosa, Neatostema apulum, Nepeta cataria, Nephelium lappaceum, Nephrolepis cordifolia, Nephrolepis exaltata, Nerium oleander, Neslia paniculata, Nicandra physalodes, Nicotiana glauca, Nierembergia hippomanica, Nigella damascena, Nitraria billardierei, Nonea lutea, Nothoscordum borbonicum, Nymphaea alba, Nymphaea capensis, Nymphaea mexicana, Nyssanthes diffusa, Nyssanthes erecta

Ochna serrulata, Oenanthe pimpinelloides, Oenothera affinis, Oenothera drummondii, Oenothera glazioviana, Oenothera indecora subsp. bonariensis, Oenothera laciniata, Oenothera longiflora, Oenothera mollissima, Oenothera rosea, Oenothera speciosa, Oenothera stricta subsp. stricta, Oenothera tetraptera, Olea europaea subsp. africana see O. europaea subsp. cuspidata, Olea europaea subsp. cuspidata, Olea europaea subsp. europaea, Oncosiphon piluliferum, Oncosiphon suffruticosum, Ononis repens, Ononis spinosa, Onopordum acanthium subsp. acanthium, Onopordum acaulon, Onopordum illyricum subsp. illyricum, Onopordum nervosum, Onopordum tauricum, Opuntia aurantiaca, Opuntia cylindrica see Austrocylindropuntia cylindrica, Opuntia elata, Opuntia elatior, Opuntia engelmannii, Opuntia ficus-indica, Opuntia humifusa, Opuntia imbricata see Cylindropuntia imbricata var. imbricata, Opuntia lindheimeri see O. engelmannii, Opuntia monacantha, Opuntia paraguayensis, Opuntia puberula, Opuntia robusta, Opuntia schickendantzii, Opuntia stricta, Opuntia tunicata see Cylindropuntia tunicata var. tunicata, Opuntia vulgaris see O. monacantha, Ornithogalum arabicum, Ornithogalum longebracteatum, Ornithogalum thyrsoides, Ornithogalum umbellatum, Ornithopus compressus, Ornithopus perpusillus, Ornithopus pinnatus, Ornithopus sativus subsp. sativus, Orobanche cernua var. australiana, Orobanche minor, Orobanche ramosa, Oryza sativa, Osteospermum clandestinum, Osteospermum ecklonis, Osteospermum fruticosum, Ottelia ovalifolia, Oxalis articulata, Oxalis bifurca, Oxalis bowiei, Oxalis brasiliensis, Oxalis compressa, Oxalis corniculata, Oxalis debilis var. corymbosa, Oxalis flava, Oxalis glabra, Oxalis hirta, Oxalis incarnata, Oxalis latifolia, Oxalis obtusa, Oxalis perdicaria, Oxalis pes-caprae, Oxalis purpurea, Oxalis vallicola, Oxylobium lanceolatum see Callistachys lanceolata, Oxypetalum coeruleum

Pallenis spinosa, Panicum antidotale, Panicum capillare, Panicum coloratum, Panicum gilvum, Panicum hillmanii, Panicum maximum var. maximum, Panicum maximum var. trichoglume, Panicum miliaceum, Panicum racemosum, Panicum repens, Papaver aculeatum, Papaver argemone, Papaver dubium, Papaver hybridum, Papaver rhoeas, Papaver somniferum subsp. setigerum, Papaver somniferum subsp. somniferum, Parapholis incurva, Parapholis strigosa, Paraserianthes lophantha subsp. lophantha, Parentucellia latifolia, Parentucellia viscosa, Parietaria judaica, Parkinsonia aculeata, Paronychia argentea, Paronychia brasiliana, Paronychia franciscana, Parthenium hysterophorus, Pascalia glauca, Paspalum dilatatum, Paspalum distichum, Paspalum notatum, Paspalum quadrifarium, Paspalum urvillei, Paspalum vaginatum, Passiflora caerulea, Passiflora cinnabarina, Passiflora edulis, Passiflora filamentosa, Passiflora herbertiana, Passiflora mollissima see P. tarminiana, Passiflora morifolia, Passiflora suberosa, Passiflora subpeltata, Passiflora tarminiana, Pastinaca sativa subsp. sativa, Pavonia hastata, Peganum harmala, Pelargonium × asperum, Pelargonium capitatum, Pelargonium × domesticum, Pelargonium fragrans, Pelargonium × hortorum, Pelargonium quercifolium, Pennisetum alopecuroides, Pennisetum clandestinum, Pennisetum glaucum, Pennisetum macrourum, Pennisetum setaceum, Pennisetum villosum, Pentaglottis sempervirens, Pentaschistis airoides, Pentaschistis pallida, Pentzia globifera see Oncosiphon piluliferum, Pentzia suffruticosa see Oncosiphon suffruticosum, Periballia minuta see Molineriella minuta, Persicaria capitata, Persicaria decipiens, Persicaria hydropiper, Persicaria lapathifolia, Persicaria maculosa, Persicaria odorata, Persicaria orientalis, Persicaria praetermissa, Persicaria prostrata, Persicaria strigosa, Persicaria subsessilis, Petasites fragrans, Petrorhagia dubia, Petrorhagia nanteuilii, Petroselinum crispum, Petunia axillaris, Petunia × hybrida, Phacelia tanacetifolia, Phalaris angusta, Phalaris aquatica, Phalaris arundinacea var. arundinacea, Phalaris arundinacea var. picta, Phalaris canariensis, Phalaris coerulescens, Phalaris minor, Phalaris paradoxa, Phleum pratense, Phoenix canariensis, Phoenix dactylifera, Phormium tenax, Photinia serratifolia, Phragmites australis, Phyla canescens, Phyla nodiflora var. canescens see P. canescens, Phyllanthus emblica, Phyllanthus tenellus, Phyllostachys aurea, Phyllostachys nigra, Physalis alkekengi, Physalis ixocarpa, Physalis lanceifolia, Physalis minima, Physalis peruviana, Physalis philadelphica, Physalis virginiana, Physalis viscosa, Phytolacca octandra, Picnomon acarna, Picris echioides see Helminthotheca echioides, Pinus contorta, Pinus halepensis, Pinus nigra var. corsicana, Pinus patula, Pinus pinaster, Pinus pinea, Pinus ponderosa, Pinus radiata, Pinus sabiniana, Piptatherum miliaceum, Piptochaetium montevidense, Pistia stratiotes, Pisum sativum, Pittosporum crassifolium, Pittosporum eugenioides, Pittosporum tenuifolium, Pittosporum undulatum, Plagiobothrys canescens, Plantago arenaria, Plantago australis, Plantago bellardii, Plantago coronopus subsp. commutata, Plantago coronopus subsp. coronopus, Plantago lanceolata, Plantago major, Plantago myosuros subsp. myosuros, Plantago scabra see P. arenaria, Plectranthus amboinicus, Plectranthus caninus, Plectranthus ciliatus, Plectranthus ecklonii, Plectranthus fruticosus, Plectranthus neochilus, Plectranthus ornatus, Plectranthus verticillatus, Poa annua, Poa bulbosa, Poa compressa, Poa infirma, Poa labillardierei, Poa pratensis, Poa sieberiana var. sieberiana, Poa trivialis, Podalyria sericea, Podospermum resedifolium see Scorzonera laciniata, Polycarpon tetraphyllum, Polygala monspeliaca, Polygala myrtifolia, Polygala paniculata, Polygala virgata, Polygala vulgaris, Polygonum arenastrum, Polygonum aviculare, Polygonum bellardii, Polygonum patulum see P. bellardii, Polypogon littoralis, Polypogon maritimus, Polypogon monspeliensis, Polypogon viridis, Pontederia cordata, Populus alba, Populus × canadensis, Populus × canescens, Populus deltoides, Populus nigra 'Italica', Populus tremula, Portulaca oleracea, Potamogeton spp., Potentilla anserina, Potentilla indica, Potentilla recta, Potentilla reptans, Pratia concolor, Pratia purpurascens, Proboscidea louisianica, Proboscidea lutea, Prosopis glandulosa, Prosopis velutina, Protasparagus see Asparagus, Prunella laciniata, Prunella vulgaris, Prunus armeniaca, Prunus cerasifera, Prunus cerasus, Prunus × domestica, Prunus dulcis, Prunus laurocerasus, Prunus lusitanica, Prunus persica, Prunus serotina, Prunus spinosa, Pseudognaphalium luteoalbum, Psilocaulon granulicaule, Psilocaulon tenue see Psilocaulon granulicaule, Psoralea pinnata, Pteridium esculentum, Puccinellia ciliata, Puccinellia fasciculata, Pueraria lobata, Pyracantha angustifolia, Pyracantha crenulata, Pyracantha fortuneana, Pyracantha koidzumii, Pyracantha rogersiana, Pyrostegia venusta

Quercus ilex, Quercus robur, Quercus suber

Racosperma see Acacia, Ranunculus acris, Ranunculus flammula subsp. flammula, Ranunculus muricatus, Ranunculus ophioglossifolius, Ranunculus parviflorus, Ranunculus repens, Ranunculus sardous, Ranunculus sceleratus, Ranunculus trilobus, Raphanus maritimus, Raphanus raphanistrum, Raphanus sativus, Rapistrum rugosum, Reichardia tingitana, Reseda alba, Reseda lutea, Reseda luteola, Reseda odorata, Reseda phyteuma, Retama monosperma, Retama raetam, Reynoutria japonica see Fallopia japonica, Rhamnus alaternus, Rhaphiolepis indica, Rhus hirta, Rhus succedanea see Toxicodendron succedaneum, Rhus typhina see R. hirta, Richardia brasiliensis, Richardia humistrata, Richardia scabra, Richardia stellaris, Ricinus communis, Robinia pseudoacacia, Roldana petasitis, Romulea bulbocodium, Romulea flava, Romulea minutiflora, Romulea rosea var. australis, Rorippa microphylla see Nasturtium microphyllum, Rorippa nasturtium-aquaticum see Nasturtium officinale, Rorippa palustris, Rorippa sylvestris, Rosa bracteata, Rosa canina, Rosa chinensis, Rosa rubiginosa, Rosa wichuraiana, Rostraria cristata, Rostraria pumila, Rotala rotundifolia, Rubus anglocandicans, Rubus cissburiensis, Rubus fruticosus aggregate, Rubus idaeus, Rubus laciniatus, Rubus leucostachys, Rubus loganobaccus, Rubus parvifolius, Rubus polyanthemus, Rubus rugosus, Rubus ulmifolius var. ulmifolius, Rumex brownii, Rumex conglomeratus, Rumex crispus, Rumex dumosus, Rumex obtusifolius, Rumex pulcher, Ruschia geminiflora, Ruschia tumidula see R. geminiflora, Ruta graveolens

Sagina apetala, Sagina maritima, Sagina procumbens, Sagittaria brevirostra, Sagittaria engelmanniana subsp. brevirostra see S. brevirostra, Sagittaria graminea subsp. platyphylla see S. platyphylla, Sagittaria montevidensis, Sagittaria platyphylla, Sagittaria sagittifolia, Salix alba var. alba, Salix alba var. caerulea, Salix alba var. vitellina, Salix babylonica, Salix × calodendron, Salix caprea, Salix chilensis see S. humboldtiana 'Pyramidalis', Salix cinerea, Salix cinerea subsp. cinerea, Salix cinerea subsp. oleifolia, Salix fragilis, Salix fragilis var. fragilis, Salix fragilis var. furcata, Salix glaucophylloides, Salix humboldtiana 'Pyramidalis', Salix matsudana 'Tortuosa', Salix matsudana × S. alba, Salix nigra, Salix × pendulina, Salix purpurea, Salix × reichardtii, Salix × rubens, Salix × sepulcralis, Salix × sepulcralis var. chrysocoma, Salix × sepulcralis var. sepulcralis, Salix × sericans, Salix viminalis, Salpichroa origanifolia, Salsola kali see Salsola tragus, Salsola tragus, Salvia aurea, Salvia coccinea, Salvia reflexa, Salvia verbenaca, Salvinia molesta, Sambucus australasica, Sambucus gaudichaudiana, Sambucus nigra, Sanguisorba minor subsp. muricata, Saponaria officinalis, Scabiosa atropurpurea, Scandix pecten-veneris, Schefflera actinophylla, Schinus areira see S. molle, Schinus molle, Schinus terebinthifolia, Schismus barbatus, Schkuhria pinnata var. abrotanoides, Scleranthus annuus, Sclerochloa dura, Sclerolaena bicornis var. bicornis, Sclerolaena bicornis var. horrida, Sclerolaena birchii, Sclerolaena divaricata, Sclerolaena longicuspis, Sclerolaena muricata var. muricata, Sclerolaena muricata var. semiglabra, Sclerolaena muricata var. villosa, Sclerolaena tricuspis, Scolymus hispanicus, Scolymus maculatus, Scorzonera laciniata, Scorzonera tingitana see Reichardia tingitana, Scutellaria racemosa, Securigera varia, Sedum acre, Sedum album, Sedum caespitosum, Sedum praealtum subsp. praealtum, Sedum reflexum, Sedum rupestre see S. reflexum, Sedum sediforme, Selaginella kraussiana, Senecio angulatus, Senecio crassiflorus, Senecio daltonii, Senecio elegans, Senecio glastifolius, Senecio jacobaea, Senecio lautus see S. pinnatifolius, Senecio linearifolius, Senecio madagascariensis, Senecio minimus, Senecio pinnatifolius, Senecio pterophorus, Senecio quadridentatus, Senecio tamoides, Senecio tenuiflorus, Senecio vulgaris, Senegal tea plant, Senna artemisioides form artemisioides, Senna artemisioides form filifolia, Senna artemisioides form petiolaris, Senna barclayana, Senna didymobotrya, Senna × floribunda see Senna septemtrionalis, Senna multiglandulosa, Senna occidentalis, Senna pendula var. glabrata, Senna septemtrionalis, Sesbania cannabina var. cannabina, Setaria gracilis see S. parviflora, Setaria italica, Setaria palmifolia, Setaria parviflora, Setaria pumila subsp. pumila, Setaria sphacelata, Setaria verticillata, Setaria viridis, Sherardia arvensis, Sida acuta, Sida corrugata, Sida leprosa see Malvella leprosa, Sida rhombifolia, Sieglingia decumbens see Danthonia decumbens, Sigesbeckia australiensis, Sigesbeckia orientalis subsp. orientalis, Silene apetala, Silene armeria, Silene conica, Silene dichotoma, Silene dioica, Silene gallica var. gallica, Silene gallica var. quinquevulnera, Silene latifolia, Silene longicaulis, Silene nocturna, Silene pendula, Silene tridentata, Silene uniflora, Silene vulgaris subsp. vulgaris, Silybum marianum, Sinapis alba, Sinapis arvensis, Sisymbrium altissimum, Sisymbrium erysimoides, Sisymbrium irio, Sisymbrium officinale, Sisymbrium orientale, Sisyrinchium iridifolium, Sisyrinchium micranthum see Sisyrinchium sp. A, Sisyrinchium sp. A, Solanum americanum, Solanum aviculare, Solanum brownii, Solanum chenopodioides, Solanum cinereum, Solanum douglasii, Solanum dulcamara, Solanum elaeagnifolium, Solanum erianthum, Solanum esuriale, Solanum furcatum, Solanum laciniatum, Solanum laxum, Solanum linnaeanum, Solanum marginatum, Solanum mauritianum, Solanum melongena, Solanum nigrum, Solanum physalifolium var. nitidibaccatum, Solanum prinophyllum, Solanum pseudocapsicum, Solanum pungetium, Solanum radicans, Solanum rostratum, Solanum seaforthianum, Solanum sisymbriifolium, Solanum triflorum, Solanum tuberosum, Soleirolia soleirolii, Solidago canadensis var. scabra, Solidago sempervirens, Soliva anthemifolia, Soliva sessilis, Soliva stolonifera, Sollya heterophylla see Billardiera heterophylla, Sonchus asper subsp. asper, Sonchus asper subsp. glaucescens, Sonchus hydrophilus, Sonchus oleraceus, Sonchus tenerrimus, Sorbus aucuparia, Sorbus domestica, Sorghum × almum, Sorghum bicolor subsp. bicolor, Sorghum bicolor subsp. drummondii, Sorghum halepense, Sparaxis bulbifera, Sparaxis tricolor, Spartina anglica, Spartina × townsendii, Spartium junceum, Spergula arvensis, Spergula pentandra, Spergularia bocconii, Spergularia diandra, Spergularia levis, Spergularia marina, Spergularia media, Spergularia rubra, Spergularia villosa, Spinacia oleracea, Spinifex sericeus, Sporobolus africanus, Sporobolus creber, Sporobolus elongatus, Sporobolus fertilis, Sporobolus indicus var. capensis see Sporobolus africanus, Stachys arvensis, Stachys byzantina, Stachys sylvatica, Stellaria graminea, Stellaria media, Stellaria pallida, Stenotaphrum secundatum, Stipa brachychaeta see Achnatherum brachychaetum, Stipa caudata see Achnatherum caudatum, Suaeda australis, Suaeda baccifera, Suaeda maritima subsp. maritima, Swainsona galegifolia, Swainsona greyana, Swainsona luteola, Swainsona procumbens, Swainsona swainsonioides, Symphytum officinale, Symphytum × uplandicum

Tagetes minuta, Talinum paniculatum, Tamarix aphylla, Tamarix ramosissima, Tambookie grass, Tanacetum parthenium, Tanacetum vulgare, Taraxacum spp., Tecoma capensis, Tecoma stans, Tecomaria capensis see Tecoma capensis, Tephrosia glomeruliflora, Tephrosia grandiflora, Tephrosia inandensis, Tetragonia microptera var. microptera, Tetragonia tetragonoides, Tetrapanax papyrifer, Teucrium scorodonia, Thinopyrum elongatum see Lophopyrum ponticum, Thinopyrum junceiforme, Thlaspi arvense, Thryptomene calycina, Thunbergia alata, Thymus vulgaris, Tolpis barbata, Tolpis umbellata see T. barbata, Torilis arvensis, Torilis nodosa, Toxicodendron radicans, Toxicodendron succedaneum, Trachyandra divaricata, Tradescantia albiflora see T. fluminensis, Tradescantia fluminensis, Tradescantia zebrina, Tragopogon dubius, Tragopogon porrifolius, Tragus australianus, Trianoptiles solitaria, Tribolium acutiflorum, Tribolium obliterum, Tribolium uniolae, Tribulus eichlerianus, Tribulus micrococcus, Tribulus minutus, Tribulus terrestris, Trifolium angustifolium, Trifolium arvense, Trifolium campestre, Trifolium cernuum, Trifolium dubium, Trifolium fragiferum, Trifolium glomeratum, Trifolium hirtum, Trifolium hybridum, Trifolium incarnatum, Trifolium lappaceum, Trifolium ornithopodioides, Trifolium pratense, Trifolium repens, Trifolium resupinatum, Trifolium scabrum, Trifolium squamosum, Trifolium stellatum, Trifolium striatum, Trifolium subterraneum, Trifolium suffocatum, Trifolium tomentosum, Trifolium vesiculosum, Triglochin procerum vii, Tripleurospermum inodorum, Tripteris clandestina see Osteospermum clandestinum, Triticum aestivum, Tritonia crocata, Tritonia lineata, Tritonia squalida, Tropaeolum majus, Tulbaghia violacea, Tweedia coerulea see Oxypetalum coeruleum, Typha domingensis, Typha latifolia, Typha orientalis

Ulex europaeus, Ulmus aff. procera, Ulmus glabra, Ulmus × hollandica, Ulmus minor, Ulmus parvifolia, Urochloa panicoides, Urospermum dalechampii, Urospermum picroides, Urtica dioica, Urtica incisa, Urtica urens, Utricularia gibba

Vaccaria hispanica, Vaccinium spp., Valerianella eriocarpa, Valerianella locusta, Vallisneria americana, Vellereophyton dealbatum, Verbascum blattaria, Verbascum creticum, Verbascum sinuatum, Verbascum thapsus subsp. thapsus, Verbascum virgatum, Verbena aristigera, Verbena bonariensis, Verbena hispida, Verbena litoralis var. brasiliensis, Verbena officinalis, Verbena rigida, Verbena supina, Verbesina encelioides subsp. encelioides, Veronica anagallis-aquatica, Veronica arvensis, Veronica catenata, Veronica hederifolia, Veronica officinalis, Veronica peregrina, Veronica persica, Veronica plebeia, Veronica serpyllifolia, Viburnum suspensum, Viburnum tinus, Vicia disperma, Vicia faba, Vicia hirsuta, Vicia monantha subsp. monantha, Vicia monantha subsp. triflora, Vicia sativa subsp. cordata, Vicia sativa subsp. nigra, Vicia sativa subsp. sativa, Vicia tetrasperma, Vicia villosa subsp. dasycarpa, Vicia villosa subsp. eriocarpa, Vicia villosa subsp. villosa, Vinca major, Vinca minor, Viola arvensis, Viola banksii, Viola hederacea, Viola odorata, Viola riviniana, Vitis vinifera, Vulpia bromoides, Vulpia ciliata, Vulpia fasciculata, Vulpia muralis, Vulpia myuros

Wachendorfia thyrsiflora, Washingtonia filifera, Watsonia aletroides, Watsonia borbonica, Watsonia marginata, Watsonia meriana var. bulbillifera, Watsonia versfeldii, Wedelia glauca see Pascalia glauca, Wolffia spp.

Xanthium ambrosioides, Xanthium cavanillesii, Xanthium occidentale, Xanthium orientale, Xanthium spinosum, Xanthium strumarium sp. aggregate

Yucca aloifolia

Zaleya galericulata subsp. australis, Zaluzianskya divaricata, Zantedeschia aethiopica, Zebrina pendula see Tradescantia zebrina, Zephyranthes candida, Zingiber officinale, Zinnia peruviana