List of garden plants

This is a partial **list of garden plants**, plants that can be cultivated in the garden, listed alphabetically by genus.

**See also:**

* List of plants by common name

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## A 
* *Abelia*
* *Abeliophyllum* (white forsythia)
* *Abelmoschus* (okra)
* *Abies* (fir)
* *Abromeitiella* (obsolete)
* *Abronia* (sand verbena)
* *Abutilon*
* *Acacia* (wattle)
* *Acaena*
* *Acalypha*
* *Acantholimon*
* *Acanthophoenix*
* *Acanthus*
* *Acca*
* *Acer* (maple)
* *Achillea* (yarrow)
* *Achimenantha* (hybrid genus)
* *Achimenes*
* *Acinos* (calamint)
* *Aciphylla*
* *Acmena*
* *Acoelorraphe* (saw palm)
* *Acokanthera*
* *Aconitum* (aconite, monkshood)
* *Acorus*
* *Acrocomia*
* *Actaea* (baneberry)
* *Actinidia* (kiwifruit)
* *Ada*
* *Adansonia*
* *Adenia*
* *Adenium*
* *Adenocarpus*
* *Adenophora*
* *Adenostoma*
* *Adiantum* (maidenhair fern)
* *Adlumia*
* *Adonis*
* *Adromischus*
* *Aechmea*
* *Aegopodium*
* *Aeonium*
* *Aerangis* (an orchid genus)
* *Aerides* (an orchid genus)
* *Aeschynanthus*
* *Aesculus* (buckeye, horse-chestnut)
* *Aethionema*
* *Agapanthus*
* *Agapetes*
* *Agastache*
* *Agathis*
* *Agave*
* *Ageratum*
* *Aglaonema*
* *Agonis*
* *Agrostemma* (corn cockle)
* *Agrostis*
* *Aichryson*
* *Ailanthus*
* *Aiphanes*
* *Aira* (hair grass)
* *Ajania*
* *Ajuga* (bugleweed)
* *Akebia*
* *Alangium*
* *Albizia* (silk tree)
* *Albuca*
* *Alcea* (hollyhock)
* *Alchemilla*
* *Aleurites*
* *Aliceara* (hybrid genus)
* *Alisma* (water plantain)
* *Alkanna*
* *Allamanda*
* *Allium* (onion)
* *Alluaudia*

* *Alnus* (alder)
* *Alocasia*
* *Aloe*
* *Aloinopsis*
* *Alopecurus* (foxtail grass)
* *Aloysia*(lemon verbena)
* *Alpinia* (ginger lily)
* *Alsobia*
* *Alstroemeria*
* *Alternanthera*
* *Althaea*
* *Alyogyne*
* *Alyssum*
* *Amaranthus*
* *Amarcrinum* (hybrid genus)
* *Amarygia* (hybrid genus)
* *Amaryllis*
* *Amberboa*
* *Amelanchier*
* *Amesiella*
* *Amherstia*
* *Amicia*
* *Ammi*
* *Ammobium*
* *Amorpha*
* *Amorphophallus*
* *Ampelopsis*
* *Amsonia*
* *Anacampseros*
* *Anacyclus*
* *Anagallis* (pimpernel)
* *Ananas* (pineapple)
* *Anaphalis*
* *Anchusa*
* *Andromeda*
* *Andropogon*
* *Androsace*
* *Anemone* (windflower)
* *Anemonella*
* *Anemonopsis*
* *Anemopaegma*
* *Anethum* (dill)
* *Angelica*
* *Angelonia*
* *Angophora*
* *Angraecum* (an orchid genus)
* *Anguloa* (an orchid genus)
* *Angulocaste* (hybrid genus)
* *Anigozanthos*
* *Anicacanthus*
* *Anisodontea*
* *Anoda*
* *Anomatheca*
* *Anopterus*
* *Anredera*
* *Antennaria*
* *Anthemis*
* *Anthericum*
* *Anthriscus*
* *Anthurium*
* *Anthyllis*
* *Antigonon*
* *Antirrhinum* (snapdragon)
* *Aphelandra*
* *Aphyllanthes*
* *Aponogeton*
* *Aporocactus*
* *Aporoheliocereus* (hybrid genus)
* *Aptenia*
* *Aquilegia* (columbine)
* *Arabis* (rock cress)
* *Arachnis* (scorpion orchid)
* *Araeococcus*
* *Aralia*
* *Araucaria* (monkey-puzzle) 
* *Araujia*
* *Arbutus* (madrone)
* *Archontophoenix* (king palm)
* *Arctostaphylos* (bearberry, manzanita)
* *Arctotheca*
* *Arctotis* (African daisy)
* *Ardisia*
* *Areca*
* *Arenaria* (sandwort)
* *Arenga*
* *Argemone* (prickly poppy)
* *Argyranthemum*
* *Argyreia*
* *Argyroderma*
* *Ariocarpus*
* *Arisaema*
* *Arisarum*
* *Aristea*
* *Aristolochia*
* *Armoracia*
* *Arnebia*
* *Arnica*
* *Aronia* (chokeberry)
* *Arrabidaea*
* *Arrhenatherum* (oat grass)
* *Artemisia* (mugwort, sagebrush, wormwood)
* *Arthropodium*
* *Arum*
* *Aruncus*
* *Arundinaria*
* *Arundo*
* *Asarina*
* *Asarum* (wild ginger)
* *Asclepias* (milkweed, silkweed)
* *Ascocenda* (hybrid genus) (an orchid genus)
* *Asimina*
* *Asparagus*
* *Asperula* (woodruff)
* *Asphodeline*
* *Asphodelus* (asphodel)
* *Aspidistra*
* *Asplenium*
* *Astelia*
* *Aster*
* *Asteranthera*
* *Astilbe*
* *Astilboides*
* *Astragalus* (milk vetch)
* *Astrantia*
* *Astrophytum*
* *Atherosperma*
* *Athrotaxis*
* *Athyrium*
* *Atriplex*
* *Aubrieta*
* *Aucuba*
* *Aurinia*
* *Austrocedrus*
* *Azalea*
* *Azara*
* *Azolla*
* *Azorella*
* *Azorina*
* *Aztekium*

## B 
* *Babiana*
* *Baccharis*
* *Backhousia*
* *Backopa* (water hyssop)
* *Baeckea*
* *Ballota*
* *Balsamorhiza* (balsam root)
* *Bambusa* (bamboo)
* *Banksia*
* *Baptisia*
* *Barbarea* (Yellow rocket or winter cress)
* *Barkeria* (an orchid genus)
* *Barleria*
* *Bassia*
* *Bauera*
* *Bauhinia*
* *Beaucarnea*
* *Beaufortia*
* *Beaumontia*
* *Begonia*
* *Belancanda*
* *Bellevalia*
* *Bellis* (daisy)
* *Bellium*
* *Berberidopsis*
* *Berberis* (barberry)
* *Berchemia*
* *Bergenia*
* *Bergerocactus*
* *Berkheya*
* *Berlandiera*
* *Bertolonia*
* *Beschorneria*
* *Bessera*
* *Beta* (beet)
* *Betula* (birch)
* *Biarum*
* *Bidens*
* *Bignonia*
* *Billardiera*
* *Billbergia*
* *Bixa*
* *Blandfordia*
* *Blechnum* (hard fern)
* *Bletilla* (an orchid genus)
* *Bloomeria*
* *Blossfeldia*
* *Boenninghausenia*
* *Bolax*
* *Bolbitis*
* *Bollea*
* *Boltonia*
* *Bolusanthus*
* *Bomarea*
* *Bombax*
* *Bongardia*
* *Borago*
* *Borassus*
* *Boronia*
* *Bothriochloa*
* *Bougainvillea*
* *Bouteloua*
* *Bouvardia*
* *Bowenia*
* *Bowiea*
* *Brachychiton*
* *Brachyglottis*
* *Brachyscome*
* *Brachysema*
* *Brachystelma*
* *Bracteantha*
* *Brahea* (Hesper palm)
* *Brassavola* (an orchid genus)
* *Brassia* (an orchid genus)
* *Brassica* (mustard, cabbage)
* *Brassocattleya* (hybrid orchids)
* *Brassolaeliocattleya* (trigeneric hybrid orchids)
* *Breynia*
* *Briggsia*
* *Brimeura*
* *Briza* (quaking grass)
* *Brodiaea*
* *Bromelia*
* *Broughtonia*
* *Broussonetia*
* *Browallia*
* *Brownea*
* *Browningia*
* *Bruckenthalia*
* *Brugmansia*
* *Brunfelsia*
* *Brunnera*
* *Brunsvigia*
* *Buddleja*
* *Buglossoides*
* *Bulbine*
* *Bulbinella*
* *Bulbocodium*
* *Bulbophyllum* (an orchid genus)
* *Buphthalmum*
* *Bupleurum*
* *Burchardia*
* *Burchellia*
* *Bursera*
* *Butea*
* *Butia*
* *Butomus*
* *Buxus* (boxwood)

## C 
* *Cabomba*
* *Caesalpinia*
* *Caladium*
* *Calamagrostis* (reed grass, smallweed)
* *Calamintha* (calamint)
* *Calamus*
* *Calandrinia*
* *Calanthe*
* *Calathea*
* *Calceolaria* (slipperwort)
* *Calendula* (marigold)
* *Calibanus*
* *Calibrachoa*
** Calla*
* *Calliandra*
* *Callianthemum*
* *Callicarpa* (beautyberry)
* *Callirhoe* (poppy mallow)
* *Callisia*
* *Callistemon* (bottlebrush)
* *Callistephus* (Chinese aster)
* *Callitriche* (water starwort)
* *Calltris*
* *Calluna* (heather)
* *Calocedrus* (incense-cedar)
* *Calochone*
* *Calochortus*
* *Calomeria*
* *Caloscordum*
* *Calothamnus*
* *Calpurnia*
* *Caltha* (kingcup, marsh marigold)
* *Calycanthus*
* *Calymmanthium*
* *Calypso* (an orchid genus)
* *Calytrix* (starflower)
* *Camassia* (quamash)
* *Camellia*
* *Campanula* (bellflower)
* *Campsis* (trumpet vine)
* *Campylotropsis*
* *Canarina*
* *Canistrum*
* *Canna*
* *Cantua*
* *Capsicum* (pepper)
* *Caragana* (peashrub)
* *Caralluma*
* *Cardamine* (bittercress)
* *Cardiocrinum*
* *Cardiospermum*
* *Carex* (sedge)
* *Carissa*
* *Carlina*
* *Carludovica*
* *Carmichaelia*
* *Carnegiea* (saguaro)
* *Carpentaria*
* *Carpenteria*
* *Carpinus* (hornbeam)
* *Carpobrotus*
* *Carthamus* (safflower)
* *Carum* (caraway)
* *Carya* (hickory, pecan)
* *Caryopteris*
* *Caryota* (fishtail palm)
* *Cassia*
* *Cassinia*
* *Cassiope*
* *Castanea* (chestnut)
* *Castanopsis*
* *Castanospermum*
* *Casuarina*
* *Catalpa*
* *Catananche*
* *Catasetum* (an orchid genus)
* *Catharanthus* (Madagascar Periwinkle)
* *Catopsis*
* *Cattleya* (an orchid genus)
* *Caulophyllum*
* *Cautleya*
* *Cavendishia*
* *Ceanothus* (California-lilac)
* *Cedronella*
* *Cedrus* (cedar)
* *Ceiba* (Kapok)
* *Celastrus* (staff-vine)
* *Celmisia* (New Zealand daisy)
* *Celosia* (cockscomb)
* *Celtis* (hackberry)
* *Centaurea*
* *Centaurium*
* *Centradenia*
* *Centranthus* (valerian)
* *Cephalaria*
* *Cephalocereus*
* *Cephalophyllum*
* *Cephalotaxus* (plum-yew)
* *Ceraria*
* *Cerastium*
* *Ceratopetalum*
* *Ceratophyllum*
* *Ceratopteris*
* *Ceratostigma*
* *Ceratozamia*
* *Cercidiphyllum*
* *Cercis*
* *Cercocarpus*
* *Cereus*
* *Ceropegia*
* *Cestrum*
* *Chaenomeles* (flowering quince)
* *Chaenorhinum* (dwarf snapdragon)
* *Chaerophyllum*
* *Chamaecyparis* (cypress)
* *Chamaecytisus*
* *Chamaedaphne*
* *Chamaedorea*
* *Chamaelirium*
* *Chamaemelum* (chamomile)
* *Chamaerops*
* *Chamelaucium*
* *Chasmanthe*
* *Chasmanthium*
* *Cheilanthes*
* *Cheiridopsis*
* *Chelidonium*
* *Chelone* (turtlehead)
* *Chiastophyllum*
* *Chiliotrichum*
* *Chilopsis* (desert willow)
* *Chimaphila*
* *Chimonanthus* (wintersweet)
* *Chimonobambusa*
* *Chionanthus* (fringe tree)
* *Chionochloa*
* *Chionodoxa* (glory of the snow)
* *Chionoscilla* (hybrid genus)
* *Chirita*
* *Chlidanthus*
* *Choisya*
* *Chorisia*
* *Chorizema*
* *Chrysalidocarpus*
* *Chrysanthemum*
* *Chrysogonum*
* *Chrysolepis*
* *Chrysosplenium*
* *Chrysothemis*
* *Chusquea*
* *Cibotium*
* *Cicerbita*
* *Cichorium* (chicory, endive)
* *Cimicifuga* (bugbane)
* *Cinnamomum*
* *Cionura*
* *Cirsium*
* *Cissus*
* *Cistus* (rockrose, sun rose)
* *Citrofortunella* (hybrid genus)
* *Citrus* (lime, lemon)
* *Cladanthus*
* *Cladrastis*
* *Clarkia*
* *Claytonia*
* *Cleistocactus*
* *Clematis*
* *Cleome* (spider flower)
* *Clerodendrum*
* *Clethra* (summersweet)
* *Cleyera*
* *Clianthus*
* *Clintonia*
* *Clitoria*
* *Clivia*
* *Clusia*
* *Clytostoma*
* *Cobaea*
* *Coccoloba* (sea grape)
* *Coccothrinax* (thatch palm)
* *Cocculus*
* *Cochlioda*
* *Cocos* (coconut)
* *Codiaeum* (croton)
* *Codonanthe*
* *Codonopsis*
* *Coelia*
* *Coelogyne* (an orchid genus)
* *Coix*
* *Colchicum* (autumn crocus, meadow saffron)
* *Coleonema*
* *Colletia*
* *Collinsia*
* *Collomia*
* *Colocasia* (taro)
* *Colquhounia*
* *Columnea*
* *Colutea* (bladder senna)
* *Coluteocarpus*
* *Colvillea*
* *Combretum*
* *Commelina* (day flower, spiderwort)
* *Comptonia*
* *Conandron*
* *Congea*
* *Conicosia*
* *Coniogramme*
* *Conophytum*
* *Consolida* (larkspur)
* *Convallaria* (lily-of-the-valley)
* *Convolvulus* (bindweed, morning glory)
* *Copernicia* (wax palm)
* *Copiapoa*
* *Coprosma*
* *Coptis* (goldthread)
* *Cordia*
* *Cordyline*
* *Coreopsis* (tickseed)
* *Coriandrum* (coriander cilantro)
* *Coriaria*
* *Cornus* (dogwood)
* *Corokia*
* *Coronilla*
* *Correa*
* *Corryocactus*
* *Cortaderia* (pampas grass, tussock grass)
* *Cortusa*
* *Corydalis*
* *Corylopsis* (winter-hazel)
* *Corylus* (hazel, filbert)
* *Corynocarpus*
* *Corypha*
* *Coryphantha*
* *Cosmos*
* *Costus*
* *Cotinus* (smoke tree)
* *Cotoneaster*
* *Cotula*
* *Cotyledon*
* *Crambe*
* *Craspedia*
* *Crassula*
* *Crataegus* (hawthorn)
* *Crepis*
* *Crinodendron*
* *Crinum*
* *Crocosmia*
* *Crocus*
* *Crossandra*
* *Crotalaria* (rattlebox)
* *Crowea*
* *Cryptanthus*
* *Cryptbergia* (hybrid genus)
* *Cryptocoryne* (water trumpet)
* *Cryptomeria* (Sugi)
* *Ctenanthe*
* *Cunila*
* *Cunninghamia* (China-fir)
* *Cunonia*
* *Cuphea*
* *Cupressus* (cypress)
* *Curcuma*
* *Cyananthus*
* *Cyanotis*
* *Cyathea* (tree fern)
* *Cyathodes*
* *Cybistax*
* *Cycas* (cycad, sago "palm")
* *Cyclamen*
* *Cycnoches*
* *Cydonia* (quince)
* *Cymbalaria* (Ivy-leaved toadflax)
* *Cymbidium* (an orchid genus)
* *Cymbopogon*
* *Cynara*
* *Cynoglossum*
* *Cypella*
* *Cyperus*
* *Cyphomandra* (tree tomato)
* *Cyphostemma*
* *Cypripedium* (an orchid genus)
* *Cyrilla*
* *Cyrtanthus*
* *Cyrtomium*
* *Cyrtostachys*
* *Cystopteris* (bladder fern)
* *Cytisus* (broom)

## D 
* *Daboecia*
* *Dacrydium*
* *Dactylis*
* *Dactylorhiza* (marsh orchid)
* *Dahlia*
* *Dais*
* *Dalea* (indigo bush)
* *Damasonium*
* *Dampiera*
* *Danae*
* *Daphne*
* *Daphniphyllum*
* *Darmera*
* *Darwinia* (scent myrtle)
* *Dasylirion*
* *Davallia*
* *Davidia*
* *Decaisnea*
* *Decarya*
* *Decumaria*
* *Deinanthe*
* *Delonix*
* *Delosperma*
* *Delphinium*
* *Dendranthema*
* *Dendrobium* (an orchid genus)
* *Dendrocalamus*
* *Dendrochilum*
* *Dendromecon* (tree poppy)
* *Denmoza*
* *Dennstaedtia*
* *Deschampsia* (hair grass)
* *Desfontainia*
* *Desmodium*
* *Deutzia*
* *Dianella* (flax lily)
* *Dianthus* (carnation, pink, Sweet William)
* *Diascia*
* *Dicentra* (bleeding heart)
* *Dichelostemma*
* *Dichondra*
* *Dichorisandra*
* *Dicksonia*
* *Dicliptera*
* *Dictamnus*
* *Dictyosperma* (princess palm)
* *Didymochlaena*
* *Dieffenbachia*
* *Dierama*
* *Diervilla* (bush honeysuckle)
* *Dietes*
* *Digitalis* (foxglove)
* *Dillenia*
* *Dillwynia*
* *Dimorphotheca* (African daisy)
* *Dionaea* (Venus flytrap)
* *Dionysia*
* *Dioon*
* *Dioscorea* (yam)
* *Diospyros*
* *Dipcadi*
* *Dipelta*
* *Diphylleia*
* *Diplarrhena*
* *Diplazium*
* *Diplocyclos*
* *Dipsacus* (teasel)
* *Dipteronia*
* *Dirca*
* *Disa* (an orchid genus)
* *Disanthus*
* *Discaria*
* *Dischidia*
* *Discocactus*
* *Disocactus*
* *Disporopsis*
* *Disporum* (fairy bells)
* *Distictis*
* *Distylium*
* *Docynia*
* *Dodecatheon* (shooting stars)
* *Dodonaea*
* *Dombeya*
* *Doodia*
* *Doronicum*
* *Dorotheanthus* (ice plant)
* *Dorstenia*
* *Doryanthes* (spear lily)
* *Doryopteris*
* *Draba*
* *Dracaena*
* *Dracocephalum*
* *Dracula* (an orchid genus)
* *Dracunculus* (Snake Lily, Dragon Arum)
* *Dregea*
* *Drimys*
* *Drosanthemum*
* *Drosera* (sundew)
* *Dryandra*
* *Dryas*
* *Drynaria*
* *Dryopteris* (buckler fern)
* *Duchesnea*
* *Dudleya*
* *Duranta*
* *Duvalia*
* *Dyckia*

## E 
* *Ebracteola*
* *Ecballium*
* *Eccremocarpus*
* *Echeveria*
* *Echidnopsis*
* *Echinacea* (coneflower)
* *Echinocactus*
* *Echinocereus*
* *Echinops* (globe thistle)
* *Echinopsis*
* *Echium*
* *Edgeworthia*
* *Edithcolea*
* *Edraianthus*
* *Egeria*
* *Ehretia*
* *Eichhornia* (water hyacinth)
* *Elaeagnus*
* *Elaeis* (oil palm)
* *Elaeocarpus*
* *Elatostema*
* *Eleocharis* (spike rush)
* *Elettaria*
* *Eleutherococcus*
* *Elodea* (pondweed)
* *Elsholtzia*
* *Elymus* (wild rye)
* *Embothrium*
* *Emilia* (tassel flower)
* *Emmenopterys*
* *Encelia*
* *Encephalartos* (Kaffir bread)
* *Encyclia* (an orchid genus)
* *Enkianthus*
* *Ensete*
* *Eomecon* (snow poppy)
* *Epacris*
* *Ephedra*
* *Epidendrum* (an orchid genus)
* *Epigaea*
* *Epilobium*
* *Epimedium* (barrenwort)
* *Epipactis* (helleborine,  an orchid genus)
* *Epiphyllum* (orchid cactus)
* *Episcia* (flame violet)
* *Epithelantha*
* *Equisetum* (horsetail)
* *Eragrostis* (love grass)
* *Eranthemum*
* *Eranthis* (winter aconite)
* *Ercilla*
* *Eremophila* (emu bush)
* *Eremurus*
* *Erica* (heath, heather)
* *Erigeron* (fleabane)
* *Erinacea*
* *Erinus*
* *Eriobotrya*
* *Eriogonum*
* *Eriophorum* (cotton grass)
* *Eriophyllum*
* *Eriostemon* (waxflower)
* *Eritrichium*
* *Erodium*
* *Eryngium* (eryngo, sea holly)
* *Erysimum* (wallflower)
* *Erythrina* (coral tree)
* *Erythronium*
* *Escallonia*
* *Eschscholzia californica* (California poppy)
* *Escobaria*
* *Espostoa*
* *Etlingera*
* *Eucalyptus* (Gum tree, ironbark)
* *Eucharis*
* *Eucomis*
* *Eucommia*
* *Eucryphia*
* *Eulophia* (an orchid genus)
* *Euonymus*
* *Eupatorium*
* *Euphorbia* (spurge)
* *Euptelea*
* *Eurya*
* *Euryale*
* *Euryops*
* *Eustoma*
* *Evolvulus*
* *Exacum*
* *Exochorda*

## F 
* *Fabiana*
* *Fagus* (beech)
* *Fallopia*
* *Farfugium*
* *Fargesia*
* *Fascicularia*
* *Fatshederae* (hybrid genus)
* *Fatsia*
* *Faucaria*
* *Felicia* (blue daisy)
* *Fendlera*
* *Fenestraria*
* *Ferocactus*
* *Ferraria*
* *Ferula* (giant fennel)
* *Festuca* (fescue)
* *Fibigia*
* *Ficus* (fig)
* *Filipendula*
* *Firmiana*
* *Fittonia*
* *Fitzroya*
* *Fockea*
* *Foeniculum* (fennel)
* *Fontanesia*
* *Forsythia*
* *Fortunella* (kumquat)
* *Fothergilla*
* *Fouquieria*
*.]]
* *Fragaria* (strawberry)
* *Frailea*
* *Francoa*
* *Franklinia*
* *Fraxinus* (ash)
* *Freesia*
* *Fremontodendron*
* *Fritillaria* (fritillary)
* *Fuchsia*
* *Furcraea*

## G 
* *Gagea*
* *Gaillardia*
* *Galanthus* (snowdrop)
* *Galax*
* *Galega*
* *Galium* (bedstraw)
* *Galtonia*
* *Gardenia*
* *Garrya*
* *Gasteria*
* *Gaultheria*
* *Gaura*
* *Gaylussacia* (huckleberry)
* *Gazania*
* *Geissorhiza*
* *Gelsemium*
* *Genista*
* *Gentiana* (gentian)
* *Gentianopsis*
* *Geranium* (cranesbill, not same as Pelargonium)
* *Gerbera*
* *Gesneria*
* *Geum* (avens)
* *Gevuina*
* *Gibbaeum*
* *Gilia*
* *Gillenia*
* *Ginkgo*
* *Gladiolus*
* *Glaucidium*
* *Glaucium*
* *Gleditsia* (honey locust)
* *Globba*
* *Globularia* (globe daisy)
* *Gloriosa*
* *Glottiphyllum*
* *Gloxinia*
* *Glyceria*
* *Glycyrrhiza*
* *Gomphocarpus*
* *Gomphrena*
* *Goniolimon*
* *Goodyera* (jewel orchid)
* *Gordonia*
* *Graptopetalum*
* *Graptophyllum*
* *Graptoveria* (hybrid genus)
* *Grevillea*
* *Grewia*
* *Greyia*
* *Grindelia*
* *Griselina*
* *Gunnera* (dinosaur food)
* *Guzmania*
* *Gymnocalycium*
* *Gymnocarpium*
* *Gymnocladus*
* *Gynandriris*
* *Gynura*
* *Gypsophila*

## H 
* *Haageocereus*
* *Haastia*
* *Habenaria* (an orchid genus)
* *Haberlea*
* *Habranthus*
* *Hacquetia*
* *Haemanthus* (blood lily)
* *Hakea*
* *Hakonechloa*
* *Halesia* (silverbell)
* *Halimiocistus* (hybrid genus)
* *Halimium*
* *Halimodendron*
* *Hamamelis* (witch-hazel)
* *Haplopappus*
* *Hardenbergia* (coral pea)
* *Harrisia*
* *Hatiora*
* *Haworthia*
* *Hebe*
* *Hechtia*
* *Hedera* (ivy)
* *Hedychium*
* *Hedyotis* (bluets)
* *Hedysarum*
* *Hedyscepe* (umbrella palm)
* *Helenium* (sneezeweed)
* *Helianthemum* (rock rose)
* *Helianthus* (sunflower)
* *Helichrysum*
* *Heliconia*
* *Helictotrichon*
* *Heliocereus*
* *Heliophila*
* *Heliopsis* (ox eye)
* *Heliotropium* (heliotrope)
* *Helleborus* (hellebore)
* *Heloniopsis*
* *Hemerocallis* (daylily)
* *Hemigraphis*
* *Hepatica*
* *Heptacodium*
* *Heracleum*
* *Herbertia*
* *Hereroa*
* *Hermannia*
* *Hermodactylus*
* *Hesperaloe*
* *Hesperantha*
* *Hesperis*
* *Hesperocallis*
* *Heterocentron*
* *Heterotheca*
* *Heuchera* (coral flower)
* *Heucherella* (hybrid genus)
* *Hibbertia*
* *Hibiscus* (hibiscus, rose of Sharon)
* *Hieracium* (hawkweed)
* *Himalayacalamus*
* *Hippeastrum* (amaryllis)
* *Hippocrepis*
* *Hippophae*
* *Hohenbergia*
* *Hohenbergiopsis*
* *Hoheria*
* *Holboellia*
* *Holcus*
* *Holmskioldia*
* *Holodiscus*
* *Homalocladium* (ribbon bush)
* *Homeria*
* *Hoodia*
* *Hordeum* (barley)
* *Horminum*
* *Hosta* (plantain lily)
* *Hottonia*
* *Houttuynia*
* *Hovea*
* *Hovenia*
* *Howea* (sentry palm)
* *Hoya* (wax flower)
* *Huernia*
* *Humulus* (hops)
* *Hummemannia*
* *Huntleya*
* *Hyacinthella*
* *Hyacinthoides*
* *Hyacinthus* (hyacinth)
* *Hydrangea*
* *Hydrastis* (goldenseal)
* *Hydrocharis* (frogbit)
* *Hydrocleys*
* *Hydrocotyle* (pennywort)
* *Hygrophila*
* *Hylocereus*
* *Hylomecon*
* *Hymenocallis*
* *Hymenosporum*
* *Hyophorbe* (bottle palm)
* *Hyoscyamus* (henbane)
* *Hypericum'' (St. John's wort, rose of SharonTutsan)
* *Hyphaene* (doum palm)
* *Hypocalymma*
* *Hypoestes*
* *Hypoxis* (starflower)
* *Hypsela*
* *Hyssopus* (hyssop)

## I 
* *Iberis* (candytuft)
* *Ibervillea*
* *Idesia*
* *Ilex* (holly)
* *Illicium*
* *Impatiens* (balsam)
* *Imperata*
* *Incarvillea*
* *Indigofera*
* *Inula*
* *Iochroma*
* *Ipheion*
* *Ipomoea* (morning glory)
* *Ipomopsis*
* *Iresine*
* *Iris*
* *Isatis*
* *Isoplexis*
* *Isopyrum*
* *Itea*
* *Ixia* (corn lily)
* *Ixiolirion*
* *Ixora*

## J 
* *Jaborosa*
* *Jacaranda*
* *Jacquemontia*
* *Jamesia*
* *Jancaea*
* *Jasione*
* *Jasminum* (jasmine, jessamine)
* *Jatropha*
* *Jeffersonia*
* *Jovellana*
* *Jovibarba*
* *Juanulloa*
* *Jubaea* (Chilean wine palm)
* *Juglans* (walnut)
* *Juncus* (rush)
* *Juniperus* (juniper)
* *Justicia*

## K 
* *Kadsura*
* *Kaempferia*
* *Kalanchoe*
* *Kalimeris*
* *Kalmia* (Mountain Laurel)
* *Kalmiopsis*
* *Kalopanax*
* *Kelseya*
* *Kerria*
* *Kigelia* (sausage tree)
* *Kirengeshoma*
* *Kitaibela*
* *Kleinia*
* *Knautia*
* *Knightia*
* *Kniphofia*
* *Koeleria*
* *Koelreuteria* (golden rain tree)
* *Kohleria*
* *Kolkwitzia* (beautybush)
* *Kosteletzkya*
* *Kunzea*

## L 
* *Lablab*
* +*Laburnocytisus*
* *Laburnum* (laburnum)
* *Laccospadix*
* *Lachenalia* (Cape cowslip)
* *Laelia* (an orchid genus)
* *Laeliocattleya* (hybrid orchid genus)
* *Lagarosiphon*
* *Legenophora*
* *Lagerstroemia*(crepe myrtle)
* *Lagunaria*
* *Lagurus*
* *Lamarckia*
* *Lambertia*
* *Lamium* (deadnettle)
* *Lampranthus*
* *Lantana* (shrub verbena)
* *Lapageria*
* *Lardizabala*
* *Larix* (larch)
* *Larrea* (creosote bush)
* *Latania* (Latan palm)
* *Lathraea*
* *Lathryus*
* *Laurelia*
* *Laurus*
* *Lavandula* (lavender)
* *Lavatera* (mallow)
* *Lawsonia*
* *Layia*
* *Ledebouria*
* *Ledodendron* (hybrid genus)
* *Ledum*
* *Leea*
* *Legousia*
* *Leiophyllum*
* *Leipoldtia*
* *Leitneria*
* *Lemboglossum*
* *Lenophyllum*
* *Leonotis*
* *Leontice*
* *Leontopodium* (edelweiss)
* *Lepidozamia*
* *Leptinella*
* *Leptodactylon*
* *Leschenaultia*
* *Lespedeza* (bush clover)
* *Leucadendron*
* *Leucanthemella*
* *Leucanthemopsis*
* *Leucanthemum*
* *Leuchtenbergia*
* *Leucocoryne*
* *Leucogenes*
* *Leucojum* (snowflake)
* *Leucophyllum*
* *Leucophyta*
* *Leucopogon*
* *Leucoraoulia* (hybrid genus)
* *Leucospermum* (pincushion)
* *Leucothoe*
* *Lewisia*
* *Leycesteria*
* *Leymus*
* *Liatris*
* *Libertia*
* *Libocedrus*
* *Ligularia*
* *Ligustrum* (privet)
* *Lilium* (lily)
* *Limnanthes*
* *Limnocharis*
* *Limonium* (sea lavender)
* *Linanthus*
* *Linaria* (toadflax)
* *Lindelofia*
* *Lindera*
* *Lindheimeria* (star daisy)
* *Linnaea* (twinflower)
* *Linospadix*
* *Linum* (flax)
* *Liquidambar* (sweetgum)
* *Liriodendron* (tulip tree)
* *Liriope* (lilyturf)
* *Lithocarpus*
* *Lithodora*
* *Lithophragma*
* *Lithops*
* *Littonia*
* *Livistona*
* *Lloydia*
* *Loasa*
* *Lobelia*
* *Lobularia* (sweet alyssum)
* *Lodoicea* (coco-de-mer)
* *Loiseleuria*
* *Lomandra* (mat rush)
* *Lomatia*
* *Lomatium*
* *Lomatophyllum*
* *Lonicera* (honeysuckle)
* *Lopezia*
* *Lophomyrtus*
* *Lophospermum*
* *Lophostemon*
* *Loropetalum*
* *Lotus*
* *Luculia*
* *Ludwigia*
* *Luma*
* *Lunaria*
* *Lupinus* (lupin)
* *Luzula* (woodrush)
* *Lycaste* (an orchid genus)
* *Lychnis* (campion)
* *Lycium*
* *Lycopodium* (club moss)
* *Lycoris*
* *Lygodium* (climbing fern)
* *Lyonia*
* *Lyonothamnus*
* *Lysichiton* (Yellow skunk cabbage)
* *Lysiloma*
* *Lysimachia* 
* *Lythrum* (loosestrife)

## M 
* *Maackia*
* *Macfadyena*
* *Machaeranthera*
* *Mackaya*
* *Macleania*
* *Macleaya*
* *Maclura*
* *Macropidia*
* *Macrozamia*
* *Magnolia*
* *Mahonia*
* *Maianthemum* (May lily)
* *Maihuenia*
* *Malcolmia*
* *Malephora*
* *Malope*
* *Malpighia*
* *Malus* (apple, crabapple)
* *Malva* (mallow)
* *Malvastrum*
* *Malvaviscus*
* *Mammillaria*
* *Mandevilla*
* *Mandragora* (mandrake)
* *Manettia*
* *Manglietia*
* *Maranta*
* *Margyricarpus*
* *Marrubium* (horehound)
* *Marsilea* (pepperwort)
* *Masdevallia* (an orchid genus)
* *Matteuccia*
* *Matthiola* (stock)
* *Maurandella*
* *Maurandya*
* *Maxillaria* (an orchid genus)
* *Maytenus*
* *Mazus*
* *Meconopsis*
* *Medicago* (alfalfa)
* *Medinilla*
* *Meehania*
* *Megacodon*
* *Megaskepasma*
* *Melaleuca* (paperbark)
* *Melasphaerula*
* *Melastoma*
* *Melia*
* *Melianthus*
* *Melica* (melick)
* *Melicytus*
* *Melinis*
* *Meliosma*
* *Melissa* (balm)
* *Melittis* (bastard balm)
* *Melocactus*
* *Menispermum* (moonseed)
* *Mentha* (mint)
* *Mentzelia* (starflower)
* *Menyanthes*
* *Menziesia*
* *Merendera*
* *Merremia*
* *Mertensia*
* *Mespilus*
* *Metasquoia* (dawn redwood)
* *Metrosideros*
* *Meum*
* *Mexicoa*
* *Michauxia*
* *Michelia*
* *Microbiota*
* *Microcachrys*
* *Microlepia*
* *Micromeria*
* *Mikania*
* *Milium*
* *Milla*
* *Millettia*
* *Miltonia* (an orchid genus)
* *Miltoniopsis* (pansy orchid)
* *Mimetes*
* *Mimosa* (mimosa, or sensitive plant)
* *Mimulus* (monkey flower)
* *Mirabilis*
* *Miscanthus*
* *Mitchella* (partridge berry)
* *Mitella*
* *Mitraria*
* *Molinia*
* *Moltkia*
* *Moluccella*
* *Monadenium*
* *Monanthes*
* *Monarda* (bee balm)
* *Monardella*
* *Monstera*
* *Moraea*
* *Morina*
* *Morisia*
* *Morus* (mulberry)
* *Mucuna*
* *Muehlenbeckia*
* *Mukdenia*
* *Musa* (banana, plantain)
* *Muscari* (grape hyacinth)
* *Mussaenda*
* *Mutisia*
* *Myoporum*
* *Myosotidium*
* *Myosotis* (forget-me-not)
* *Myrica*
* *Myriophyllum* (milfoil)
* *Myrrhis* (sweet cicely)
* *Myrsine*
* *Myrteola*
* *Myrtillocactus*
* *Myrtus* (myrtle)

## N 
* *Nandina* (heavenly bamboo)
* *Narcissus* (daffodil)
* *Nasturtium* (watercress)
* *Nautilocalyx*
* *Nectaroscordium*
* *Neillia*
* *Nelumbo* (lotus)
* *Nematanthus*
* *Nemesia*
* *Nemopanthus* (mountain holly)
* *Nemophila*
* *Neobuxbaumia*
* *Neolitsea*
* *Neolloydia*
* *Neomarica*
* *Neoporteria*
* *Neoregelia*
* *Nepenthes* (pitcher plant)
* *Nepeta* (catmint)
* *Nephrolepis*
* *Nerine*
* *Nerium* (oleander)
* *Nertera*
* *Nicandra*
* *Nicotiana* (tobacco)
* *Nidularium*
* *Nierembergia*
* *Nigella*
* *Nipponanthemum*
* *Nolana*
* *Nomocharis*
* *Nopalxochia*
* *Nothofagus* (southern beech)
* *Notholirion*
* *Nothoscordum* (false garlic)
* *Notospartium*
* *Nuphar* (spatterdock)
* *Nymania*
* *Nymphaea* (waterlily)
* *Nymphoides* (floating heart)
* *Nyssa* (tupelo)

## O 
* *Obregonia*
* *Ochagavia*
* *Ochna*
* *Ocimum*
* *Odontioda* (hybrid orchid genus)
* *Odontocidium* (hybrid orchid genus)
* *Odontoglossum* (an orchid genus)
* *Odontonema*
* *Odontonia* (hybrid orchid genus)
* *Oemleria*
* *Oenanthe* (water dropwort)
* *Oenothera* (evening primrose, sundrops)
* *Olea* (olive)
* *Olearia* (daisy bush)
* *Olneya*
* *Olsynium*
* *Omphalodes* (navelwort)
* *Omphalogramma*
* *Oncidium* (an orchid genus)
* *Onoclea*
* *Ononis* (restharrow)
* *Onopordum*
* *Onosma*
* *Oophytum*
* *Ophiopogon* (lilyturf)
* *Ophrys* (an orchid genus)
* *Ophthalmophyllum*
* *Oplismenus*
* *Opuntia* (prickly-pear, peyote and many other cactus species)
* *Orbea*
* *Orbeopsis*
* *Orchis* (an orchid genus)
* *Oreocereus*
* *Origanum* (marjoram, oregano)
* *Orixa*
* *Ornithogalum*
* *Ornithophora*
* *Orontium* (golden club)
* *Orostachys*
* *Oroya*
* *Ortegocactus*
* *Orthophytum*
* *Orthrosanthus*
* *Orychophragmus*
* *Oryza* (rice)
* *Osbeckia*
* *Osmanthus*
* *Osmarea*
* *Osmaronia*
* *Osmunda* (royal fern)
* *Osteomeles*
* *Osteospermum*
* *Ostrowskia* (giant bellflower)
* *Ostrya*
* *Othonna*
* *Ourisia*
* *Oxalis* (shamrock, sorrel)
* *Oxydendrum*
* *Ozothamnus*

## P 
* *Pachycereus*
* *Pachycormus*
* *Pachycymbium*
* *Pachyphragma*
* *Pachyphytum*
* *Pachypodium*
* *Pachysandra*
* *Pachystachys*
* *Pachystegia*
* *Pachystima*
* *Pachyveria* (hybrid genus)
* *Paeonia* (peony)
* *Paliurus*
* *Pamianthe*
* *Panax* (ginseng)
* *Pancratium* (sea lily)
* *Pandanus* (screw pine)
* *Pandorea*
* *Panicum*
* *Papaver* (poppy)
* *Paphiopedilum* (slipper orchid)
* *Paradisea* (paradise lily)
* *Parahebe*
* *Paraquilegia*
* *Parkinsonia*
* *Parnassia*
* *Parochetus*
* *Parodia*
* *Paronychia*
* *Parrotia*
* *Parrotiopsis*
* *Parthenocissus*
* *Passiflora* (granadilla, passionflower)
* *Patersonia*
* *Patrinia*
* *Paulownia*
* *Paurotis*
* *Pavonia*
* *Paxistima*
* *Pedilanthus*
* *Pediocactus*
* *Pelargonium* (geranium)
* *Pellaea*
* *Peltandra* (arrow arum)
* *Peltoboykinia*
* *Peltophorum*
* *Peniocereus*
* *Pennisetum*
* *Penstemon*
* *Pentachrondra*
* *Pentaglottis*
* *Pentas*
* *Peperomia*
* *Peraphyllum*
* *Pereskia*
* *Perezia*
* *Pericallis*
* *Perilla*
* *Periploca*
* *Perovskia*
* *Pernettya* (now included in *Gaultheria*)
* *Persea*
* *Persicaria* (fleeceflower, knotweed)
* *Petasites* (butterbur, sweet coltsfoot)
* *Petrea*
* *Petrocosmea*
* *Petrophile*
* *Petrophyton*
* *Petrophytum*
* *Petrorhagia*
* *Petroselinum* (parsley)
* *Petteria*
* *Petunia*
* *Phacelia*
* *Phaedranassa* (queen lily)
* *Phaius* (an orchid genus)
* *Phalaenopsis* (moth orchid)
* *Phalaris*
* *Phebalium*
* *Phegopteris* (beech fern)
* *Phellodendron* (cork tree)
* *Philadelphus* (mock orange)
* *Philageria* (hybrid genus)
* *Philesia*
* *Phillyrea*
* *Philodendron*
* *Phlebodium*
* *Phlomis*
* *Phlox*
* *Phoenix* (date palm)
* *Phormium*
* *Photinia*
* *Phragmipedium* (an orchid genus)
* *Phragmites* (reed)
* *Phuopsis*
* *Phygelius*
* *Phylica* (Cape myrtle)
* *Phylliopsis* (hybrid genus)
* *Phyllocladus* (toatoa)
* *Phyllodoce*
* *Phyllostachys*
* *Phyllothamnus* (hybrid genus)
* *Physalis* (ground cherry)
* *Physaria* (bladderpod)
* *Physocarpus*
* *Physoplexis*
* *Physostegia*
* *Phyteuma*
* *Phytolacca* (pokeweed)
* *Picea* (spruce)
* *Picrasma*
* *Pieris*
* *Pilea*
* *Pileostegia*
* *Pileosella*
* *Pilosocereus*
* *Pimelea*
* *Pimpinella*
* *Pinanga*
* *Pinckneya*
* *Pinellia*
* *Pinguicula* (butterwort)
* *Pinus* (pine)
* *Piper* (pepper)
* *Piptanthus*
* *Pisonia*
* *Pistacia* (pistachio)
* *Pistia*
* *Pitcairnia*
* *Pithecellobium*
* *Pittosporum*
* *Pityrogramma*
* *Plantago* (plantain)
* *Platanus* (plane tree, sycamore)
* *Platycarya*
* *Platycerium* (staghorn fern)
* *Platycladus* (Chinese arborvitae)
* *Platycodon* (balloon flower)
* *Platystemon* (creamcups)
* *Plectranthus*
* *Pleioblastus*
* *Pleione* (an orchid genus)
* *Pleiospilos* (living granite)
* *Pleurothallis* (an orchid genus)
* *Plumeria* (frangipani)
* *Poa*
* *Podalyria*
* *Podocarpus*
* *Podophyllum* (mayapple)
* *Podranea*
* *Polemonium* (jacob's ladder, abscess root)
* *Polianthes*
* *Poliothyrsis*
* *Polygala* (milkwort, seneca, snakeroot)
* *Polygonatum*
* *Polygonum* (knotweed, knotgrass)
* *Polypodium*
* *Polyscias*
* *Polystichum*
* *Poncirus*
* *Pongamia*
* *Pontederia* (pickerel weed)
* *Populus* (aspen, poplar, cottonwood)
* *Porana*
* *Portea*
* *Portulaca* (purslane, moss rose)
* *Portulacaria*
* *Posoqueria*
* *Potamogeton*
* *Potentilla* (cinquefoil)
* *Pothos*
* *Potinara* (hybrid orchid genus)
* *Pratia*
* *Primula* (primrose)
* *Prinsepia*
* *Pritchardia*
* *Proboscidea* (unicorn plant)
* *Promenaea*
* *Prosopis* (mesquite)
* *Prostanthera* (mint bush)
* *Protea*
* *Prumnopitys*
* *Prunella* (self-heal)
* *Prunus* (almond, apricot, cherry, peach, plum)
* *Pseuderanthemum*
* *Pseudocydonia*
* *Pseudolarix* (golden-larch)
* *Pseudopanax*
* *Pseudosasa*
* *Pseudotsuga* (douglas-fir)
* *Pseudowintera*
* *Psiolotum*
* *Psychopsis* (butterfly orchid)
* *Psylliostachys* (statice)
* *Ptelea*
* *Pteris* (brake, table fern)
* *Pterocactus*
* *Pterocarya* (wingnut)
* *Pteroceltis*
* *Pterocephalus*
* *Pterodiscus*
* *Pteropogon*
* *Pterostyrax*
* *Ptilotus*
* *Ptychosperma*
* *Pueraria*
* *Pulmonaria* (lungwort)
* *Pulsatilla*
* *Pultenaea*
* *Punica* (pomegranate)
* *Purshia*
* *Puschkinia*
* *Putoria*
* *Puya*
* *Pycnanthemum*
* *Pycnostachys*
* *Pyracantha* (firethorn)
* *Pyrola* (wintergreen)
* *Pyrostegia*
* *Pyrrosia*
* *Pyrus* (pear)

## Q 
* *Quamoclit*
* *Quaqua*
* *Quercus* (oak)
* *Quesnelia*
* *Quisqualis*

## R 
* *Ramonda*
* *Ranunculus* (buttercup, crowfoot)
* *Ranzania*
* *Raoulia*
* *Raphia* (raffia)
* *Ratibida*
* *Ravenala* (traveler's tree)
* *Rebutia*
* *Rehderodendron*
* *Rehmannia*
* *Reineckia*
* *Reinwardtia*
* *Reseda* (mignonette)
* *Retama*
* *Rhamnus*
* *Rhaphidophora*
* *Rhaphiolepis*
* *Rhapidophyllum* (needle palm)
* *Rhapis* (lady palm)
* *Rheum* (rhubarb)
* *Rhexia*
* *Rhipsalis*
* *Rhodanthe* (strawflower)
* *Rhodanthemum*
* *Rhodiola*
* *Rhodochiton*
* *Rhododendron*
* *Rhodohypoxis*
* *Rhodophiala*
* *Rhodothamnus*
* *Rhodotypos*
* *Rhoeo*
* *Rhoicissus*
* *Rhombophyllum*
* *Rhus* (sumac)
* *Rhynchelytrum*
* *Rhynchostylis* (an orchid genus)
* *Ribes* (currant)
* *Richea*
* *Ricinus* (castor-oil plant)
* *Rigidella*
* *Robinia*
* *Rochea*
* *Rodgersia*
* *Rodriguezia*
* *Rohdea*
* *Romanzoffia*
* *Romneya* (Matilija poppy, tree poppy)
* *Romulea*
* *Rondeletia*
* *Rosa* (rose)
* *Roscoea*
* *Rosmarinus* (rosemary)
* *Rossioglossum*
* *Rothmannia*
* *Roystonea* (royal palm)
* *Rubus* (raspberry)
* *Rudbeckia* (coneflower)
* *Ruellia*
* *Rumex* (dock)
* *Rumohra*
* *Rupicapnos*
* *Ruschia*
* *Ruscus*
* *Russelia*
* *Ruta* (rue)

## S 
* *Sabal* (palmetto)
* *Saccharum* (plume grass, sugar cane)
* *Sadleria*
* *Sagina* (pearlwort)
* *Sagittaria* (arrowhead)
* *Saintpaulia* (African violet)
* *Salix* (willow)
* *Salpiglossus*
* *Salvia* (sage)
* *Salvinia*
* *Sambucus* (elder)
* *Sanchezia*
* *Sandersonia*
* *Sanguinaria* (bloodroot)
* *Sanguisorba* (burnet)
* *Sansevieria*
* *Santolina*
* *Sanvitalia* (creeping zinnia)
* *Sapindus*
* *Sapium* (tallow tree)
* *Saponaria* (soapwort)
* *Sarcocapnos*
* *Sarcocaulon*
* *Sarcococca*
* *Saritaea*
* *Sarmienta*
* *Sarracenia* (pitcher plant)
* *Sasa*
* *Sassafras*
* *Satureja* (savory)
* *Sauromatum*
* *Saxegothaea*
* *Saxifraga* (saxifrage)
* *Scabiosa* (scabious plant)
* *Scadoxus* (blood lily)
* *Scaevola*
* *Schefflera*
* *Schima*
* *Schinus*
* *Schisandra*
* *Schizachyrium*
* *Schizanthus*
* *Schizopetalon*
* *Schizophragma*
* *Schizostylis*
* *Schlumbergera*
* *Schoenoplectus*
* *Schomburgkia*
* *Schotia*
* *Schwantesia*
* *Sciadopitys*
* *Scilla*
* *Scindapsus*
* *Scirpoides*
* *Sclerocactus*
* *Scoliopsus*
* *Scopolia*
* *Scrophularia* (figwort)
* *Scutellaria*
* *Securinega*
* *Sedum* (stonecrop)
* *Selaginella*
* *Selago*
* *Selenicereus*
* *Selinum*
* *Semele*
* *Semiaquilegia*
* *Semiarundinaria*
* *Sempervivum* (hens and chicks)
* *Senecio* (ragwort)
* *Senna (herb)*
* *Sequoia* (coast redwood)
* *Sequoiadendron* (giant sequoia)
* *Seriphidium*
* *Serissa*
* *Serruria*
* *Sesbania*
* *Sesleria*
* *Setaria*
* *Shepherdia*
* *Shibataea*
* *Shortia*
* *Sibiraea*
* *Sidalcea*
* *Sideritis*
* *Silene* (campion)
* *Silphium*
* *Silybum*
* *Simmondsia* (jojoba)
* *Sinningia*
* *Sinocalycanthus*
* *Sinofranchetia*
* *Sinojackia*
* *Sinowilsonia*
* *Sisyrinchium*
* *Skimmia*
* *Smilacina*
* *Smilax*
* *Smithiantha*
* *Smyrnium*
* *Sobralia*
* *Solandra*
* *Solanum* (potato, nightshade)
* *Soldanella* (snowbell)
* *Soleirolia*
* *Solenopsis*
* *Solenostemon*
* *Solidago* (goldenrod)
* *Solidaster* (hybrid genus)
* *Sollya*
* *Sonerila*
* *Sophora*
* *Sophrolaeliocattleya* (trigeneric hybrid orchid)
* *Sophronitis* (an orchid genus)
* *Sorbaria*
* *Sorbus* (rowan, whitebeam)
* *Sorghastrum*
* *Sparaxis*
* *Sparganium*

* *Sparrmania*
* *Spartina* (cord grass)
* *Spartium* (broom)
* *Spathiphyllum*
* *Spathodea*
* *Sphaeralcea*
* *Spigelia*
* *Spiraea* (spirea)
* *Sprianthes* (an orchid genus)
* *Sporobolus*
* *Sprekelia*
* *Stachys* (betony)
* *Stachyurus*
* *Stangeria*
* *Stanhopea* (an orchid genus)
* *Stapelia*
* *Stapelianthus*
* *Staphylea* (bladdernut)
* *Stauntonia*
* *Stenanthium*
* *Stenocactus*
* *Stenocarpus*
* *Stenocereus*
* *Stenomesson*
* *Stenotaphron*
* *Stenotus*
* *Stephanandra*
* *Stephanocereus*
* *Stephanotis*
* *Sternbergia*
* *Stigmaphyllon*
* *Stipa*
* *Stokesia*
* *Stomatium*
* *Stratiotes*
* *Strelitzia* (bird of paradise (plant))
* *Streptocarpus* (Cape primrose)
* *Streptosolen*
* *Strobilanthes*
* *Stromanthe*
* *Strombocactus*
* *Strongylodon*
* *Stuartia*
* *Stylidium*
* *Stylophorum*
* *Styphelia*
* *Styrax*
* *Succisa*
* *Sulcorebutia*
* *Sutera*
* *Sutherlandia*
* *Swainsona*
* *Swainsonia*
* *Syagrus*
* *Sycoparrotia* (hybrid genus)
* *Sycopsis*
* *Symphoricarpos* (snowberry)
* *Symphyandra*
* *Symphytum* (comfrey)
* *Symplocos*
* *Synadenium*
* *Syneilesis*
* *Syngonium*
* *Synnotia*
* *Synthyris*
* *Syringa* (lilac)
* *Syzygium* (rose apple)

## T 
* *Tabebuia*
* *Tabernaemontana*
* *Tacca*
* *Tagetes* (Mexican or French marigold)
* *Talinum* (fameflower)
* *Tamarix* (tamarisk)
* *Tanacetum* (tansy)
* *Tanakaea*
* *Tanakea*
* *Tapeinochilus*
* *Taxodium* (bald cypress)
* *Taxus* (yew)
* *Tecoma (plant)*
* *Tecomanthe*
* *Tecomaria*
* *Tecophilaea*
* *Telekia*
* *Telephium*
* *Tellima*
* *Telopea* (waratah)
* *Templetonia*
* *Terminalia (plant)*
* *Ternstroemia*
* *Tetracentron*
* *Tetradium* (bee tree)
* *Tetranema*
* *Tetraneuris*
* *Tetrapanax*
* *Tetrastigma*
* *Tetratheca*
* *Teucrium*
* *Thalia (plant)*
* *Thalictrum*
* *Thelesperma*
* *Thelocactus*
* *Thelypteris*
* *Thermopsi*
* *Thespesia*
* *Thevetia*
* *Thlaspi*
* *Thrinax* (thatch palm)
* *Thryptomene* (heath myrtle)
* *Thuja* (thuja, arborvitae)
* *Thujopsis* (hiba)
* *Thunbergia*
* *Thymophylla*
* *Thymus* (thyme)
* *Tiarella*
* *Tibouchina*
* *Tigridia*
* *Tilia* (linden)
* *Tillandsia* (air plant, Spanish moss)
* *Tipuana*
* *Titanopsis*
* *Tithonia* (Mexican sunflower)
* *Todea*
* *Tolmiea*
* *Tolpis*
* *Toona*
* *Torenia*
* *Torreya* (nutmeg yew)
* *Tovara*
* *Townsendia*
* *Trachelium*
* *Trachelospermum*
* *Trachycarpus* (chusan palm)
* *Trachymene*
* *Tradescantia* (spiderwort)
* *Trapa* (water caltrop)
* *Trichodiadema*
* *Trichosanthes*
* *Tricyrtis* (toad lily)
* *Trientalis*
* *Trifolium* (clover)
* *Trillium*
* *Tripetaleia*
* *Tripterygium*
* *Triteleia* (triplet lily)
* *Tritonia*
* *Trochodendron*
* *Trollius* (globeflower)
* *Tropaeolum* (nasturtium)
* *Tsuga* (hemlock)
* *Tsusiophyllum*
* *Tuberaria*
* *Tulbaghia*
* *Tulipa* (tulip)
* *Tweedia*
* *Tylecodon*
* *Typha* (cattail)

## U 
* *Uebelmannia*
* *Ugni*
* *Ulex* (gorse)
* *Ulmus* (elm)
* *Umbellularia*
* *Uncinia*
* *Uniola*
* *Urceolina*
* *Urginea*
* *Ursinia*
* *Utricularia* (bladderwort)
* *Uvularia* (merrybells, bellwort)

## V 
* *Vaccinium* (blueberry, cranberry, huckleberry)
* *Valeriana* (valerian)
* *Vallea*
* *Vancouveria*
* *Vanda* (an orchid genus)
* *Vanilla*
* *Veitchia*
* *Vellozia*
* *Veltheimia*
* *Venidium* (cape daisy and others)
* *Veratrum*
* *Verbascum* (mullein)
* *Verbena*
* *Vernonia* (ironweed)
* *Veronica* (speedwell)
* *Veronicastrum*
* *Verticordia*
* *Vestia*
* *Viburnum*
* *Victoria* (giant waterlily)
* *Vigna* (cowpea and various beans)
* *Viguiera*
* *Vinca* (periwinkle)
* *Viola* (pansy, violet)
* *Virgilia*
* *Viscaria*
* *Vitaliana*
* *Vitex*
* *Vitis* (grape)
* *Vriesea*

## W 
* *Wachendorfia*
* *Wahlenbergia*
* *Waldsteinia*
* *Washingtonia*
* *Watsonia*
* *Weberocereus*
* *Wedelia*
* *Weigela*
* *Weingartia*
* *Weldenia*
* *Welwitschia*
* *Westringia*
* *Widdringtonia*
* *Wigandia*
* *Wigginsia*
* *Wikstroemia*
* *Wilsonaria* (hybrid orchid genus)
* *Wisteria*
* *Wittrockia*
* *Wolffia*
* *Woodsia*
* *Woodwardia* (chain fern)
* *Worsleya*
* *Wulfenia*

## X 
* *Xanthoceras*
* *Xanthorhiza*
* *Xanthosoma*
* *Xeranthemum*
* *Xerophyllum*
* *Xylosma*

## Y 
* *Yucca*
* *Yushania*

## Z 
* *Zaluzianskya*
* *Zamia*
* *Zantedeschia* (calla lily)
* *Zanthoxylum*
* *Zauschneria*
* *Zea* (maize)
* *Zelkova*
* *Zenobia*
* *Zephyranthes*
* *Zigadenus*
* *Zinnia*
* *Zizania* (wild rice)
* *Zygopetalum* (an orchid genus)