| Genus | #images |
|---|---|
| Abelmoschus Medik. | 11 |
| Abies Mill. | 6 |
| Abronia Juss. | 21 |
| Abrotanella Cass. | |
| Abutilon Mill. | 37 |
| Acacia Mill. | 5 |
| Acaena Mutis ex L. | 2 |
| Acanthocalycium Backeb. | 1 |
| Acanthocarpus Lehm. | |
| Acanthocereus (Engelm. ex A. Berger) Britton & Rose | 3 |
| Acanthochlamys P.C.Kao | |
| Acanthogilia A.G.Day & Moran | 1 |
| Acantholimon Boiss. | 33 |
| Acanthosicyos Welw. ex Benth. & Hook.f. | 3 |
| Acanthostachys Link | |
| Acanthus L. | 1 |
| Acareosperma Gagnep. | |
| Acer L. | 13 |
| Acetabularia J.V.Lamouroux | 5 |
| Acharagma (N.P. Taylor) Glass | 2 |
| Achillea L. | 49 |
| Achimenes P.Browne | 8 |
| Acicarpha Juss. | 3 |
| Acidocroton Griseb. | |
| Acidonia L.A.S.Johnson & B.G.Briggs | |
| Acis Salisb. | 14 |
| Acokanthera G.Don | 5 |
| Aconitum L. | 47 |
| Acourtia D.Don | 1 |
| Acranthera Arn. ex Meisn. | 4 |
| Acrisione B.Nord. | |
| Acrodon N.E.Br | |
| Acrosanthes Eckl. & Zeyh. | |
| Actaea L. | 14 |
| Actinodium S.Schauer ex Schltdl. | 8 |
| Actinostachys Wall. | |
| Actinotus Labill. | 11 |
| Adelinia J.I.Cohen | 6 |
| Adelonema Schott | 1 |
| Adenanthos Labill. | 1 |
| Adenia Forssk. | 13 |
| Adenium Roem. & Schult. | 12 |
| Adenocaulon Hook. | 3 |
| Adenophora Fisch. | 3 |
| Adenophorus Gaudich. | 2 |
| Adenosma R.Br. | 16 |
| Adenostyles Cass. | 10 |
| Adesmia DC. | 14 |
| Adiantum L. | 46 |
| Adonis L. | 17 |
| Adoxa L. | |
| Adromischus Lem. | 21 |
| Aechmea Ruiz & Pav. | 87 |
| Aegiceras Gaertn. | |
| Aeginetia L. | 8 |
| Aegonychon Gray | 5 |
| Aeonium Webb & Berthel. | 7 |
| Aequatorium B.Nord. | |
| Aeschynanthus Jack | 24 |
| Afgekia Craib | 1 |
| Agalinis Raf. | 5 |
| Agapanthus L'Hér. | 6 |
| Agapetes G.Don | 22 |
| Agarista D.Don ex G.Don | 5 |
| Agastache Clayton ex Gronov. | 24 |
| Agastachys R.Br. | 4 |
| Agave L. | 19 |
| Aglaodorum Schott | 1 |
| Aglaomorpha Schott | 6 |
| Aglaonema Schott | 8 |
| Agoseris Raf. | 11 |
| Agrimonia L. | 11 |
| Aichryson Webb & Berthel. | 17 |
| Ainsliaea DC. | 8 |
| Airampoa FriÄ | |
| Aizoanthemopsis Klak | 1 |
| Aizoanthemum Dinter ex Friedrich | |
| Aizoon L. | 2 |
| Ajuga L. | 18 |
| Alangium Lam. | |
| Albidella Pichon | |
| Albuca L. | 9 |
| Alcantarea (É.Morren ex Mez) Harms | 17 |
| Aldrovanda L. | 1 |
| Aletris L. | 4 |
| Alfredia Cass. | 6 |
| Aliciella Brand | 9 |
| Alisma L. | 1 |
| Alkanna Tausch | 7 |
| Alkekengi Mill. | |
| Allamanda L. | 3 |
| Allardia Decne. | 1 |
| Alliaria Heist. ex Fabr. | 2 |
| Allionia L. | 8 |
| Allium L. | 334 |
| Allophyllum (Nutt.) A.D.Grant & V.E.Grant | 3 |
| Alloschemone Schott | |
| Allotropa Torr. & A.Gray | 4 |
| Alloxylon P.H.Weston & Crisp | |
| Alluaudia (Drake) Drake | 7 |
| Alluaudiopsis Humbert & Choux | 1 |
| Alocasia (Schott) G.Don | 57 |
| Aloe L. | 156 |
| Aloestrela Molteno & Gideon F.Sm. | |
| Aloidendron (A.Berger) Klopper & Gideon F.Sm. | 11 |
| Aloinopsis Schwantes | 5 |
| Alpinia Roxb. | 37 |
| Alrawia (Wendelbo) Perss. & Wendelbo | |
| Alseuosmia A.Cunn. | |
| Alsobia Hanst. | 3 |
| Alsophila R.Br. | 1 |
| Alstonia R.Br. | 5 |
| Alstroemeria L. | 14 |
| Althaea L. | 8 |
| Alyxia R.Br. | 3 |
| Amaryllis L. | 3 |
| Amblyanthopsis Mez | |
| Amblyanthus A.DC. | |
| Amelanchier Medik. | 25 |
| Amherstia Wall. | 4 |
| Amianthium A.Gray | 2 |
| Ammocharis Herb. | 6 |
| Ammodendron Fisch. ex DC. | 1 |
| Amomum Roxb. | 2 |
| Amorpha L. | 6 |
| Amorphophallus Blume ex Decne. | 97 |
| Ampelocissus Planch. | |
| Ampelopsis A.Rich. ex Michx. | 1 |
| Amphibolia L.Bolus ex A.G.J.Herre | |
| Amphitecna Miers | 2 |
| Amsinckia Lehm. | 5 |
| Amsonia Walter | 2 |
| Amydrium Schott | |
| Amyema Tiegh. | 39 |
| Anabasis L. | 6 |
| Anacampseros L. | 17 |
| Anacardium L. | 7 |
| Anadendrum Schott | |
| Anagallis L. | 1 |
| Ananas Mill. | 1 |
| Anaphalioides (Bentham) Kirpichnikov | 4 |
| Anaphyllopsis A.Hay | |
| Anaphyllum Schott | 1 |
| Anarthrophyllum Benth. | 10 |
| Anastatica L. | 2 |
| Anchomanes Schott | 1 |
| Anchusa L. | 14 |
| Ancylobothrys Pierre | 4 |
| Andersonglossum J.I.Cohen | 5 |
| Andesanthus P.J.F.Guim. & Michelang. | |
| Andrographis Wall. ex Nees | 6 |
| Androlepis Brongn. ex Houllet | |
| Andromeda L. | 5 |
| Andropogon L. | 3 |
| Androsace L. | 35 |
| Androstephium Torr. | |
| Aneilema R.Br. | 3 |
| Anemarrhena Bunge | |
| Anemoclema (Franch.) W.T.Wang | |
| Anemonastrum Holub | 6 |
| Anemone L. | 45 |
| Anemonella Spach | 2 |
| Anemonoides Mill. | 23 |
| Anemonopsis Siebold & Zucc. | 5 |
| Anemopsis Hook. & Arn. | |
| Angelica L. | |
| Angiopteris Hoffm. | 2 |
| Anigozanthos Labill. | 26 |
| Anisodus Link ex Spreng. | 4 |
| Anisomeria D.Don | |
| Anisopappus Hook. & Arn. | 7 |
| Anisosepalum E.Hossain | |
| Annona L. | 2 |
| Anomacanthus R.D.Good | |
| Antegibbaeum Schwantes ex C.Weber | |
| Anthemis L. | |
| Anthericum L. | 1 |
| Anthobolus R.Br. | 2 |
| Anthocercis Labill. | 4 |
| Anthoceros L. | 4 |
| Anthotium R.Br. | 2 |
| Anthotroche Endl. | 3 |
| Anthurium Schott | 95 |
| Anticlea Kunth | 1 |
| Antidaphne Poepp. & Endl. | 1 |
| Antigonon Endl. | 3 |
| Antillanthus B.Nord. | |
| Antimima N.E.Br | |
| Antistrophe A.DC. | |
| Apatesia N.E.Br | |
| Aphelandra R.Br. | 29 |
| Aphyllanthes L. | |
| Apiopetalum Baill. | 1 |
| Apium | 4 |
| Apocynum L. | 1 |
| Apodanthes Poit. | |
| Apodolirion Baker | 3 |
| Aporoheliocereus C.Knebel ex Airy Shaw | |
| Aporosa Blume | 4 |
| Apteranthes J.C.Mikan | 6 |
| Apteria Nutt. | 5 |
| Aquarius Christenh. & Byng | |
| Aquilegia L. | 101 |
| Arabis L. | 21 |
| Araeococcus Brongn. | |
| Aralia L. | 13 |
| Arbusculohypopterygium M.Stech, T.Pfeiff. & W.Frey | 1 |
| Arctium L. | 17 |
| Arctomecon Torr. & Frém. | 9 |
| Arctotheca Vaill. | 2 |
| Ardisia Sw. | 27 |
| Ardisiandra Hook. f. | |
| Aremonia Neck. ex Nestl. | 6 |
| Arenaria Ruppius ex L. | 30 |
| Argemone L. | 16 |
| Argentina Hill | 3 |
| Argostemma Wall. | 6 |
| Argylia D.Don | 13 |
| Argyranthemum Webb | 27 |
| Argyreia Lour. | 43 |
| Argyroderma N.E.Br | 13 |
| Argyroxiphium DC. | 13 |
| Ariocarpus Scheidw. | 26 |
| Arisaema Mart. | 235 |
| Arisarum Mill. | 8 |
| Aristaloe Boatwr. & J.C.Manning | 3 |
| Aristolochia L. | 79 |
| Arjona Comm. ex Cav. | 2 |
| Armatocereus Backeb. | 5 |
| Arnebia Forssk. | 4 |
| Arnica L. | 46 |
| Arnoglossum Raf. | 4 |
| Arrojadoa Britton & Rose | 7 |
| Arrojadocharis Mattf. | |
| Artemisia L. | 5 |
| Arthrocereus A. Berger | |
| Arthropodium R.Br. | 1 |
| Arum L. | 17 |
| Asarum L. | 43 |
| Asclepias L. | 135 |
| Asemeia Raf. | 2 |
| Asimina Adans. | 4 |
| Asparagus Tourn. ex L. | 4 |
| Asperula L. | 25 |
| Aspidistra Ker Gawl. | 4 |
| Asplenium L. | 52 |
| Astelia Banks & Sol. ex R.Br. | 2 |
| Astephanus R.Br. | 2 |
| Aster L. | 5 |
| Asterella P. Beauv. | 9 |
| Asteropyrum J.R.Drumm. & Hutch. | |
| Asterostigma Fisch. & C.A.Mey. | 11 |
| Astragalus L. | 236 |
| Astrantia L. | 21 |
| Astridia Dinter | |
| Astrophytum Lem. | 33 |
| Asyneuma Griseb. & Schenk | 1 |
| Atalantia Corrêa | 6 |
| Athertonia L.A.S.Johnson & B.G.Briggs | |
| Athyrium Roth | 8 |
| Atractylis L. | 1 |
| Atraphaxis L. | 2 |
| Atriplex L. | |
| Atropa L. | 10 |
| Aulax P.J.Bergius | 5 |
| Aureliana Sendtn. | 4 |
| Aureolaria Raf. | 7 |
| Austrocactus Britton & Rose | 16 |
| Austrocallerya J.Compton & Schrire | 2 |
| Austrocylindropuntia Backeb. | 3 |
| Austrolycopodium Holub | 2 |
| Austromuellera C.T.White | |
| Austromyrtus (Nied.) Burret | 1 |
| Avena L. | 2 |
| Averrhoa L. | |
| Avicennia L. | |
| Ayensua L.B.Sm. | |
| Azorella Lam. | 19 |
| Azorina Feer | 5 |
| Aztekium Boed. | 10 |
| Babiana Ker Gawl. | 64 |
| Baccaurea Lour. | 2 |
| Bactris Jacq. ex Scop. | |
| Badula Juss. | |
| Baeometra Salisb. ex Endl. | 1 |
| Baeriopsis J.T.Howell | |
| Balanophora J.R.Forst. & G.Forst. | 15 |
| Baliospermum Blume | |
| Ballota L. | 8 |
| Baloghia Endl. | |
| Banksia L.f. | 109 |
| Baptisia Vent. | 24 |
| Barbacenia Vand. | 1 |
| Barbaceniopsis L.B.Sm. | |
| Barbarea Scop. | 4 |
| Barclaya Wall. | 1 |
| Barfussia Manzan. & W.Till | |
| Barkleyanthus H.Rob. & Brettell | |
| Barleria L. | 3 |
| Barnardia Lindl. | 1 |
| Barneoudia Gay | |
| Barringtonia J.R.Forst. & G.Forst. | 25 |
| Bartonia Muhl. ex Willd. | 3 |
| Bassecoia B.L.Burtt | 3 |
| Bauhinia B.Heyne ex Wight & Arn. | 6 |
| Bdallophytum Eichler | |
| Beaucarnea Lem. | |
| Beauprea Brongn. & Gris | |
| Beaupreopsis Virot | |
| Bedfordia DC. | |
| Beesia Balf.f. & W.W.Sm. | 4 |
| Behnia Didr. | |
| Bejaria Mutis | 12 |
| Bellendena R.Br. | 2 |
| Bellevalia Lapeyr. | 22 |
| Belosynapsis Hassk. | |
| Benthamiella Speg. | 2 |
| Berberidopsis Hook.f. | 6 |
| Berberis L. | 6 |
| Bergeranthus Schwantes | |
| Bergerocactus Britton & Rose | |
| Berlinia Sol. ex Hook.f. & Benth. | 2 |
| Berteroa DC. | 5 |
| Berzelia Brongn. | 9 |
| Beschorneria Kunth | 1 |
| Besleria Plum. ex L. | 3 |
| Bessera Schult.f. | |
| Bethencourtia Choisy | |
| Betula L. | 3 |
| Biarum Schott | 16 |
| Bidens L. | 19 |
| Bignonia L. | 5 |
| Billardiera Sm. | 24 |
| Billbergia Thunb. | 52 |
| Biophytum DC. | |
| Bistorta (L.) Scop. | 1 |
| Bituminaria Heist. ex Fabr. | 5 |
| Blachia Baill. | |
| Blackstonia Huds. | 3 |
| Blakea P.Browne | 17 |
| Blancoa Lindl. | 2 |
| Blandfordia Sm. | 6 |
| Bleasdalea F.Muell. ex Domin | |
| Blechnum L. | 4 |
| Blennosperma Less. | |
| Blepharipappus Hook. | 1 |
| Blephilia (L.) Raf. | 3 |
| Bloomeria Kellogg | |
| Blossfeldia Werderm. | 3 |
| Bobartia L. | 1 |
| Boechera Á.Löve & D.Löve | |
| Boenninghausenia Rchb. | 2 |
| Boesenbergia Kuntze | 5 |
| Bolandra Gray | |
| Bomarea Mirb. | 40 |
| Bonamia Thouars | 7 |
| Bonellia | |
| Boophone Herb. | 18 |
| Boopis Juss. | 2 |
| Borodinia Busch | |
| Boronia Sm. | 107 |
| Boswellia Roxb. ex Colebr. | |
| Botrychium Sw. | 16 |
| Boucerosia Wight & Arn. | 3 |
| Bourreria P.Browne | 4 |
| Bouteloua Bouteloua | |
| Bouvardia Salisb. | 3 |
| Bowiea Harv. ex Hook.f. | 9 |
| Bowkeria Harv. | 14 |
| Boykinia Nutt. | |
| Brabejum L. | |
| Brachycereus Britton & Rose | |
| Brachyclados D.Don | 1 |
| Brachyglottis J.R.Forst. & G.Forst. | |
| Brachyotum (DC.) Triana | 3 |
| Brachytome Hook.f. | 4 |
| Brandisia Hook.f. & Thomson | 8 |
| Brasenia Schreb. | 6 |
| Brasilicereus Backeb. | 2 |
| Brasiliopuntia (K. Schum.) A. Berger | |
| Brassica L. | 8 |
| Braunsia Schwantes | |
| Brefeldia Rostaf. | 3 |
| Brexia Noronha ex Thouars | 1 |
| Brianhuntleya Chess. et al. | |
| Brighamia A.Gray | 6 |
| Brimeura Salisb. | 1 |
| Brocchinia Schult. & Schult.f. in J.J.Roemer & J.A.Schultes | 1 |
| Brodiaea Sm. | |
| Bromelia L. | 1 |
| Bromus L. | 4 |
| Broussonetia Ortega | 1 |
| Browallia L. | 8 |
| Brownea Jacq. | 21 |
| Browneopsis Huber | 1 |
| Browningia Britton & Rose | 2 |
| Brugmansia Pers. | 22 |
| Brunfelsia L. | 10 |
| Brunnera Steven | 5 |
| Brunonia R.Br. | 3 |
| Brunsvigia Heist. | 27 |
| Bryocarpum Hook. f. & Thomson | |
| Bucephalandra Schott | 4 |
| Buchnera L. | 21 |
| Buckinghamia F.Muell. | |
| Bucklandiella Roiv. | |
| Buddleja L. | 6 |
| Bufonia Sauvage | 1 |
| Buglossoides Moench | 3 |
| Bukiniczia Lincz. | 3 |
| Buphthalmum Mill. | 2 |
| Bupleurum L. | 24 |
| Burmannia L. | 15 |
| Cabomba Aubl. | 8 |
| Cacaliopsis A.Gray | |
| Caesalpinia (L. 1753) E. Gagnon & G. P. Lewis | |
| Caiophora C.Presl | 1 |
| Cakile Mill. | 11 |
| Caladium Vent. | 7 |
| Calathodes Hook.f. & Thomson | |
| Calceolaria L. | 45 |
| Calectasia R.Br. | 6 |
| Calibanus Rose | |
| Calibrachoa Cerv. | 1 |
| California Aldasoro et al. | 2 |
| Callerya Endl. | 3 |
| Calliandra Benth. | 12 |
| Callianthe Donnell | |
| Callianthemoides Tamura | 5 |
| Callianthemum C.A.Mey. | 5 |
| Callicarpa L. | 1 |
| Calligonum L. | 3 |
| Callirhoe Nutt. | 3 |
| Callisia (Ortgies) D.R.Hunt | 6 |
| Calochortus Pursh | 114 |
| Calorezia Panero | 1 |
| Calotropis R.Br. | 7 |
| Caltha L. | 4 |
| Calycanthus L. | 17 |
| Calycera Cav. | 7 |
| Calymmanthium F. Ritter | |
| Calyptrogyne H.Wendl. | 4 |
| Calyptronoma Griseb. | 1 |
| Calystegia R.Br. | 11 |
| Camassia Lindl. | 14 |
| Camchaya Gagnep. | 8 |
| Camellia L. | 13 |
| Camissonia Link | |
| Camissoniopsis W.L.Wagner & Hoch | |
| Camonea Raf. | 2 |
| Campanula L. | 130 |
| Campanulastrum Small | 1 |
| Camptorrhiza Hutch. | |
| Campylandra Baker | |
| Campyloneurum C.Presl | 4 |
| Campylotropis Bunge | 8 |
| Canarina L. | 7 |
| Canbya Parry ex A.Gray | 1 |
| Canistrum É.Morren | |
| Canna L. | 12 |
| Cannabis L. | 7 |
| Canscora Lam. | 4 |
| Cantua Juss. | 6 |
| Capelio B.Nord. | |
| Capparis Tourn. ex L. | 25 |
| Capraria L. | 2 |
| Caputia B.Nord. & Pelser | 1 |
| Caragana Lam. | 14 |
| Caralluma R.Br. | 16 |
| Cardamine L. | 36 |
| Cardiocrinum (Endl.) Lindl. | 12 |
| Carduus L. | 21 |
| Cardwellia F.Muell. | |
| Carex L. | 4 |
| Carlina L. | 23 |
| Carludovica Ruiz & Pav. | 4 |
| Carnarvonia F.Muell. | |
| Carnegiea Britton & Rose | 3 |
| Carpanthea N.E.Br | |
| Carphephorus Cass. | 9 |
| Carpobrotus N.E.Br | 15 |
| Carruanthus (Schwantes) Schwantes | 3 |
| Carthamus L. | 14 |
| Cartonema R.Br. | 1 |
| Casearia Jacq. | 6 |
| Cassiope D.Don | 10 |
| Castanea Mill. | 2 |
| Castanopsis (D.Don) Spach | 2 |
| Castellanosia Cárdenas | |
| Castilleja Mutis ex L.f. | 51 |
| Catalepidia P.H.Weston | |
| Catananche L. | 3 |
| Cathaya Chun & Kuang | |
| Catopsis Griseb. | 4 |
| Caucasalia B.Nord. | |
| Caulokaempferia K.Larsen | 12 |
| Caulophyllum Michx. | 5 |
| Cavendishia Lindl. | 6 |
| Caxamarca M.O.Dillon & Sagást. | |
| Cayratia Juss. | |
| Ceanothus L. | 4 |
| Cedrus Trew | |
| Ceiba Mill. | 24 |
| Celastrus L. | 3 |
| Celmisia Cass. | 6 |
| Cenarrhenes Labill. | |
| Cenchrus L. | 3 |
| Cenocentrum Gagnep. | 3 |
| Centaurea L. | 101 |
| Centaurium Hill | 6 |
| Centella L. | 1 |
| Centranthera R.Br. | 9 |
| Centropogon C.Presl | 8 |
| Cephalanthus L. | 5 |
| Cephalaria Schrad. | 13 |
| Cephalocereus Pfeiff. | 1 |
| Cephalophyllum N.E.Br | |
| Cephalotus Labill. | 11 |
| Cerastium Tourn. ex L. | 31 |
| Ceratiola Michx. | 2 |
| Ceratostema Juss. | 10 |
| Ceratostigma Bunge | 13 |
| Ceratotheca | |
| Cercis L. | 10 |
| Cercocarpus Kunth | |
| Cereus Mill. | 24 |
| Cerinthe L. | 13 |
| Cerochlamys N.E.Br | |
| Ceropegia L. | 71 |
| Ceroxylon Bonpl. ex DC. | 14 |
| Cestrum L. | 14 |
| Chaetanthera Ruiz & Pav. | 4 |
| Chaetogastra DC. | 4 |
| Chalmasia Solms-Laubach | |
| Chaloupkaea Niederle | |
| Chamaebatia Benth. | |
| Chamaecostus C.D.Specht & D.W.Stev. | 2 |
| Chamaeleon Cass. | 1 |
| Chamaelirium Willd. | 10 |
| Chamaerops L. | 6 |
| Chamaesaracha (A.Gray) Benth. & Hook.f. | 7 |
| Chamaescilla F.Muell. ex Benth. | |
| Chamaexeros Benth. | |
| Chaptalia Vent. | 3 |
| Chasmatophyllum Dinter & Schwantes | |
| Chayamaritia D.J.Middleton & Mich.Möller | 6 |
| Cheiridopsis N.E.Br | 12 |
| Cheirolophus Cass. | |
| Chelidonium L. | 17 |
| Chelone L. | 7 |
| Chenopodium L. | 25 |
| Chersodoma Phil. | |
| Chesneya Lindl. ex Endl. | 3 |
| Chiliotrichum Cass. | 2 |
| Chilopsis D.Don | 11 |
| Chimaphila Pursh | 7 |
| Chimonanthus Lindl. | 5 |
| Chionanthus L. | 13 |
| Chionocharis I.M.Johnst. | |
| Chionodoxa Boiss. | |
| Chironia L. | 3 |
| Chlaenosciadium C.Norman | |
| Chlorogalum (Lindl.) Kunth | |
| Chloropetalum Morillo | |
| Chlorophytum Ker Gawl. | 1 |
| Chorispora R.Br. ex DC. | 11 |
| Christensenia Maxon | |
| Christia Moench | 6 |
| Christisonia Gardner | 3 |
| Chrysophyllum L. | 2 |
| Chrysopsis (Nutt.) Elliott | 4 |
| Chrysothemis Decne. | 1 |
| Chunia H.T.Chang | |
| Chuquiraga Juss. | 19 |
| Chylismia (Torr. & A.Gray) Raim. | |
| Chylismiella (Munz) W.L.Wagner & Hoch | |
| Cicerbita Wallr. | 11 |
| Cichorium L. | 9 |
| Cineraria L. | |
| Cipocereus F. Ritter | 5 |
| Cipuropsis Ule | |
| Circaea L. | |
| Circandra N.E.Br | |
| Cirsium Mill. | 95 |
| Cissampelopsis Miq. | |
| Cissus L. | 1 |
| Cistanche Hoffmanns. & Link | 12 |
| Cistus L. | 24 |
| Citrullus Schrad. ex Eckl. & Zeyh. | 1 |
| Clarkia Pursh | 48 |
| Clavija | |
| Cleistocactus Lem. | 15 |
| Cleistocana G.D. Rowley | |
| Clematicissus Planch. | |
| Clematis L. | 198 |
| Cleome L. | 20 |
| Cleomella DC. | 3 |
| Cleretum N.E.Br | 1 |
| Clermontia Gaudich. | 20 |
| Clerodendrum L. | 42 |
| Cliffortia L. | 4 |
| Clinanthus Herb. | 3 |
| Clinopodium L. | 39 |
| Clintonia Raf. | 18 |
| Clitoria L. | 11 |
| Clivia Lindl. | 9 |
| Clypeina Michelin | |
| Cnidium Cusson ex Juss. | 3 |
| Cobaea Cav. | 7 |
| Coccoloba P.Browne | 8 |
| Cocculus DC. | 4 |
| Cochliostema Lem. | 1 |
| Codiaeum Rumph. ex A.Juss. | |
| Codonanthe (Mart.) Hanst. | 8 |
| Codonanthopsis Mansf. | 6 |
| Codonopsis Wall. | 7 |
| Coffea L. | 6 |
| Coincya Rouy | 3 |
| Colchicum L. | 106 |
| Coleocephalocereus Backeb. | 9 |
| Coleus Lour. | 31 |
| Colletia Comm. ex Juss. | 9 |
| Colliguaja Molina | 7 |
| Collinsia Nutt. | 14 |
| Collinsonia L. | 10 |
| Collomia Nutt. | 18 |
| Colobocarpos Esser & Welzen | |
| Colobogynium Schott | 1 |
| Colocasia Schott | 3 |
| Columnea L. | 72 |
| Colutea L. | 11 |
| Comandra Nutt. | 7 |
| Comastoma Toyok. | 2 |
| Comatricha Preuss | 9 |
| Comesperma Labill. | 8 |
| Cometes L. | 1 |
| Commelina Plum. ex L. | 35 |
| Comospermum Rauschert | |
| Conandrium (K.Schumann) Mez | |
| Condea Adans. | 4 |
| Conicosia N.E.Br | |
| Conium L. | 2 |
| Connellia N.E.Br. | |
| Conocephalum Hill | 11 |
| Conopholis Wallr. | 3 |
| Conophytum N.E.Br | 115 |
| Conospermum Sm. | 5 |
| Conradina A.Gray | 9 |
| Consolea Lem. | |
| Convallaria L. | 7 |
| Convolvulus L. | 6 |
| Copiapoa Britton & Rose | 29 |
| Coprosma J.R.Forst. & G.Forst. | 2 |
| Coptis Salisb. | 21 |
| Coptosapelta Korth. | 2 |
| Cordia L. | 14 |
| Cordyline Comm. ex R.Br. | 2 |
| Coreopsis L. | 29 |
| Coris L. | |
| Cornus L. | 4 |
| Correa Andrews | 41 |
| Corryocactus Britton & Rose | |
| Cortia DC. | 3 |
| Corydalis DC. | 71 |
| Corylopsis Siebold & Zucc. | 12 |
| Corylus L. | 16 |
| Corynaea Hook.f. | 7 |
| Corynopuntia F.M. Knuth | |
| Coryphantha (Engelm.) Lem. | 6 |
| Corytoplectus Oerst. | 2 |
| Coscinodon Spreng. | |
| Costantinella Matr. | |
| Costus L. | 27 |
| Cotoneaster Medik. | 52 |
| Cottendorfia Schult. & Schult.f. in J.J.Roemer & J.A.Schultes | |
| Cotula L. | 1 |
| Cotyledon Tourn. ex L. | 13 |
| Couroupita Aubl. | 3 |
| Cousinia Cass. | 14 |
| Cracosna Gagnep. | 7 |
| Crambe L. | 5 |
| Craspedolobium Harms | 3 |
| Crassocephalum Moench | 3 |
| Crassothonna B.Nord. | 3 |
| Crassula L. | 51 |
| Crataegus L. | 57 |
| Crawfurdia Wall. | |
| Cremanthodium Benth. | 10 |
| Crepis L. | 38 |
| Crinum L. | 23 |
| Crispiloba Steenis | 2 |
| Crithmum L. | 4 |
| Crocanthemum Spach | 19 |
| Crocidium Hook. | |
| Crocodilium (Boiss. & Heldr.) N.Garcia & Susanna | |
| Crocosmia Planch. | 1 |
| Crocus L. | 440 |
| Crossyne Salisb. | 3 |
| Crotalaria L. | 10 |
| Croton L. | 1 |
| Cryptantha Lehm. ex G.Don | 2 |
| Cryptanthus Otto & A.Dietr. | |
| Cryptocoryne Fisch. ex Wydler | 6 |
| Cryptogramma R.Br. | 6 |
| Cryptomitrium Austin ex Underw. | 3 |
| Cryptostephanus Welw. ex Baker | 3 |
| Ctenardisia | |
| Ctenium Panz. | 5 |
| Cubanola Aiello | 3 |
| Cumulopuntia F. Ritter | 2 |
| Cuphea P.Browne | 15 |
| Cupressus L. | 1 |
| Curculigo Gaertn. | |
| Curcuma L. | 44 |
| Curio P.V.Heath | 14 |
| Cuscuta L. | 31 |
| Cussonia Thunb. | |
| Cyananthus Wall. ex Benth. | 16 |
| Cyanotis D.Don | 15 |
| Cyathea Sm. | 4 |
| Cybianthus Mart. | |
| Cycas L. | 8 |
| Cyclamen L. | 55 |
| Cylindrophyllum Schwantes | |
| Cylindropuntia (Engelm.) F.M. Knuth | 6 |
| Cymbalaria Hill | 9 |
| Cymopterus Raf. | 11 |
| Cynanchica P.Caputo & Del Guacchio | 3 |
| Cynara L. | 16 |
| Cynoglossum L. | 29 |
| Cynoglottis (Gusul.) Vural & Kit Tan | 1 |
| Cynomorium L. | 5 |
| Cyphanthera Miers | 1 |
| Cyphostemma (Planch.) Alston | |
| Cyrtandromoea Zoll. | 2 |
| Cyrtanthus Aiton | 43 |
| Cyrtophyllum Reinw. ex Blume | 2 |
| Cyrtosperma Griff. | 1 |
| Cystopteris Bernh. | 6 |
| Cytinus L. | 10 |
| Dactylanthus Hook.f. | 4 |
| Dactylicapnos Wall. | 1 |
| Dalea L. | 1 |
| Dalechampia Plum. ex L. | 14 |
| Damasonium Mill. | 10 |
| Damrongia Kerr ex Craib | 2 |
| Danae Medik. | |
| Danaea Sm. | 1 |
| Dandya H.E.Moore | |
| Dapania Korth. | |
| Daphne Tourn. ex L. | 60 |
| Dapsilanthus B.G.Briggs & L.A.S.Johnson | 5 |
| Darlingia F.Muell. | |
| Darwinia Rudge | 79 |
| Dasylirion Zucc. | |
| Datura L. | 16 |
| Daubenya Lindl. | 20 |
| Daviesia Sm. | 23 |
| Dawsonia R. Br. | 6 |
| Decarya Choux | |
| Decaschistia Wight & Arn. | 5 |
| Deherainia | |
| Deinacanthon Mez in A.L.P.P.de Candolle & A.C.P.de Candolle | |
| Delairea Lem. | |
| Delosperma N.E.Br | 10 |
| Delphinium Tourn. ex L. | 44 |
| Dendrocalamus Nees | 2 |
| Dendrocereus Britton & Rose | |
| Dendrocnide Miq. | 2 |
| Dendroconche Copel. | 1 |
| Dendrolobium (Wight & Arn.) Benth. | |
| Dendrolycopodium A.Haines | 5 |
| Dendrophorbium (Cuatrec.) C.Jeffrey | |
| Dendrosenecio (Hauman ex Hedberg) B.Nord. | 2 |
| Denmoza Britton & Rose | 1 |
| Deparia Hook. & Grev. | 5 |
| Deppea Schltdl. & Cham. | |
| Dermatobotrys Bolus | 4 |
| Desfontainia Ruiz & Pav. | 5 |
| Desmidorchis Ehrenb. | 6 |
| Desmodium Desv. | |
| Deuterocohnia Mez in C.F.P.von Martius & auct. suc. (eds.) | |
| Diamena Ravenna | |
| Dianthera L. | |
| Dianthus L. | 108 |
| Diastella Salisb. ex Knight | |
| Dicentra Bernh. | 32 |
| Dicerandra Benth. | 5 |
| Dichelostemma Kunth | 1 |
| Dichocarpum W.T.Wang & P.K.Hsiao | 23 |
| Dichodon (Bartl. ex Rchb.) Rchb. | |
| Dichopogon Kunth | 3 |
| Dichorisandra J.C.Mikan | 4 |
| Dichoropetalum Fenzl | 1 |
| Dicksonia L'Hér. | 1 |
| Dicliptera Juss. | 9 |
| Dicrocaulon N.E.Br | |
| Dictymia J.Sm. | 2 |
| Didierea Baill. | |
| Didymaotus N.E.Br | |
| Didymocarpus Raf. | 6 |
| Dieffenbachia Schott | 4 |
| Dierama K.Koch | 8 |
| Dietes Salisb. ex Klatt | 6 |
| Digitalis Tourn. ex L. | 82 |
| Dillenia L. | 24 |
| Dilobeia Thouars | |
| Dilophia Thomson | 5 |
| Dimerocostus Kuntze | 1 |
| Dinetus Buch.-Ham. ex D.Don | 3 |
| Dinteranthus Schwantes | 1 |
| Dionaea J.Ellis | 8 |
| Dionysia Fenzl | 44 |
| Dioon Lindl. | 5 |
| Diora Ravenna | |
| Dioscorea Plum. ex L. | 17 |
| Diospyros L. | 11 |
| Dipcadi Medik. | 1 |
| Diphasiastrum Holub | 13 |
| Diphasium C.Presl ex Rothm. | 1 |
| Diplacus Nutt. | 31 |
| Diplarrena Labill. | 4 |
| Diplazium Sw. | 4 |
| Diplolepis R.Br. | 5 |
| Diplosoma Schwantes | 1 |
| Dipsacus L. | 23 |
| Dipterostemon Rydb. | 2 |
| Dirca L. | 8 |
| Disanthus Maxim. | |
| Discaria Hook. | 7 |
| Dischidia R.Br. | 3 |
| Disciotis Boud. | 6 |
| Discocactus Pfeiff. | 2 |
| Discocalyx Mez | |
| Disisorhipsalis Doweld | |
| Disocactus Lindl. | 1 |
| Disophyllum | |
| Disphyma N.E.Br | 10 |
| Disporopsis Hance | |
| Disporum Salisb. | 6 |
| Disteganthus Lem. | |
| Disterigma (Klotzsch) Nied. | 8 |
| Distimake Raf. | |
| Dittrichia Greuter | 13 |
| Dodecastigma Ducke | |
| Doellingeria Nees | 3 |
| Dolichoglottis B.Nord. | |
| Dolichorrhiza (Pojark.) Galushko | |
| Dolomiaea DC. | |
| Dombeya Cav. | 13 |
| Dorobaea Cass. | |
| Doronicum L. | 15 |
| Dorstenia Plum. ex L. | 31 |
| Doryanthes Corrêa | 5 |
| Downingia Torr. | 7 |
| Draba L. | 43 |
| Dracaena Vand. | 26 |
| Dracocephalum L. | 13 |
| Dracontium L. | 2 |
| Dracophilus (Schwantes) Dinter & Schwantes | |
| Dracophyllum Labill. | 53 |
| Dracunculus Mill. | 4 |
| Drimia Jacq. ex Willd. | 7 |
| Drimiopsis Lindl. & Paxton | 1 |
| Drimys J.R.Forst. & G.Forst. | 10 |
| Drosanthemum Schwantes | |
| Drosera L. | 116 |
| Droserapites | |
| Droserapollis | |
| Droseridites | |
| Dryas L. | 6 |
| Drymocallis Fourr. ex Rydb. | 13 |
| Drymonia Mart. | 1 |
| Drymophila R.Br. | |
| Dryopteris Adans. | 5 |
| Dryptodon Brid. | |
| Dudleya Britton & Rose | 21 |
| Duhaldea DC. | 4 |
| Duma T.M.Schust. | |
| Dumortiera Nees | 3 |
| Dunalia Kunth | 1 |
| Dunbaria Wight & Arn. | 9 |
| Duperrea Pierre ex Pit. | 3 |
| Duvalia Haw. | 25 |
| Dyckia Schult. & Schult.f. in J.J.Roemer & J.A.Schultes | 8 |
| Dypsis Noronha ex Mart. | |
| Dysolobium Prain | 6 |
| Dyssochroma Miers | 2 |
| Ebenus L. | 6 |
| Eberlanzia Schwantes | |
| Ebracteola Dinter & Schwantes | |
| Echeandia Ortega | 6 |
| Echeveria DC. | 69 |
| Echidnopsis Hook.f. | 5 |
| Echinacea Moench | 3 |
| Echinocactus Link & Otto | 19 |
| Echinocereus Engelm. | 40 |
| Echinodorus Rich. | 2 |
| Echinoferocactus P.V.Heath | |
| Echinomoza G.D.Rowley | |
| Echinops L. | 24 |
| Echinopsis Zucc. | 36 |
| Echium L. | 40 |
| Edithcolea N.E.Br. | 13 |
| Edmundoa Leme | 1 |
| Edraianthus A.DC. | 12 |
| Eduandrea Leme | |
| Ehrendorferia Fukuhara & Lidén | 2 |
| Eichhornia Kunth | 1 |
| Eidothea A.W.Douglas & B.Hyland | |
| Ekmaniopappus Borhidi | |
| Elaeagnus Tourn. ex L. | 2 |
| Elaeocarpus Burm. ex L. | 10 |
| Elaphoglossum Schott ex J.Sm. | 17 |
| Elatostema J.R.Forst. & G.Forst. | 17 |
| Elekmania B.Nord. | |
| Eleocharis R.Br. | 5 |
| Elephantopus L. | 2 |
| Elingamita G.T.S. Baylis | |
| Ellipanthus Hook.f. | 2 |
| Elsholtzia Willd. | 8 |
| Elytraria Michx. | 1 |
| Embelia Burm.f. | 5 |
| Emblemantha B.C.Stone | |
| Embothrium J.R.Forst. & G.Forst. | 5 |
| Emilia Cass. | 4 |
| Eminium Schott | 4 |
| Empodium Salisb. | 8 |
| Enarganthe N.E.Br | |
| Encephalartos Lehm. | 36 |
| Encholirium Mart. ex Schult. & Schult.f. in J.J.Roemer & J.A.Schultes | |
| Enchylaena R.Br. | |
| Endiandra R.Br. | 23 |
| Endoxyla Herrich-Schäffer | |
| Enemion Raf. | 4 |
| Enerthenema Bowman | 4 |
| Engelhardia Lesch. ex Blume | 3 |
| Ensete Bruce ex Horan. | 1 |
| Eomecon Hance | 3 |
| Epigaea L. | 13 |
| Epilobium L. | 48 |
| Epiphyllum Haw. | 2 |