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Plant List
Indexed Alphabetically by Common Name
C
For a list of plants indexed by Scientific Name, click here
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| National Common Name | Scientific Name with Author | Symbol | Family | |
| cabbage | Brassica oleracea L. | BROL | Brassicaceae | |
| cabbage on a stick | Brighamia insignis Gray | BRIN4 | Campanulaceae | |
| cabbage tree | Cordyline australis (G. Forst.) Endl. | COAU12 | Liliaceae | |
| cabbagebark tree | Andira inermis (W. Wright) Kunth ex DC. | ANIN | Fabaceae | |
| cabellos de angel | Clematis dioica L. | CLDI3 | Ranunculaceae | |
| cabra blanca | Chionanthus ligustrinus (Sw.) Pers. | CHLI6 | Oleaceae | |
| cacaliopsis | Cacaliopsis Gray | CACAL4 | Asteraceae | |
| cachiyuyo | Atriplex atacamensis Phil. | ATAT2 | Chenopodiaceae | |
| cactus flat gilia | Aliciella heterostyla (S. Cochrane & Day) J.M. Porter | ALHE3 | Polemoniaceae | |
| cadaba | Cadaba farinosa Forsskal | CAFA4 | Capparaceae | |
| cadaba | Cadaba Forsskal | CADAB | Capparaceae | |
| Caddo false foxglove | Agalinis caddoensis Pennell | AGCA8 | Scrophulariaceae | |
| cadillo | Acaena myriophylla Lindl. | ACMY3 | Rosaceae | |
| caelogyne | Caelogyne Lindl. | CAELO2 | Orchidaceae | |
| cafe falso | Bunchosia glandulifera (Jacq.) Kunth | BUGL2 | Malpighiaceae | |
| cafe forastero | Bunchosia glandulosa (Cav.) DC. | BUGL | Malpighiaceae | |
| Cahaba Indian paintbrush | Castilleja kraliana J. Allison | CAKR4 | Scrophulariaceae | |
| caimitillo | Chrysophyllum mexicanum Brandegee ex Standl. | CHME10 | Sapotaceae | |
| Cain's reedgrass | Calamagrostis cainii A.S. Hitchc. | CACA2 | Poaceae | |
| Cainville thistle | Cirsium calcareum (M.E. Jones) Woot. & Standl. | CICA10 | Asteraceae | |
| cajanus | Cajanus Adans. | CAJAN | Fabaceae | |
| caladium | Caladium Vent. | CALAD | Araceae | |
| calamint | Calamintha P. Mill. | CALAM4 | Lamiaceae | |
| calammophila | ×Calammophila Brand | CALAM6 | Poaceae | |
| calamondin | Citrus madurensis Lour. | CIMA9 | Rutaceae | |
| calamus | Acorus calamus L. | ACCA4 | Acoraceae | |
| calamus | Calamus caesius Blume | CACA72 | Arecaceae | |
| calamus | Calamus deerratus Mann & H. A. Wendl. | CADE28 | Arecaceae | |
| calamus | Calamus L. | CALAM5 | Arecaceae | |
| calathea | Calathea G.F.W. Mey. | CALAT | Marantaceae | |
| calcareous brachythecium moss | Brachythecium calcareum Kindb. | BRCA70 | Brachytheciaceae | |
| calcareous cryptantha | Cryptantha thyrsiflora (Greene) Payson | CRTH | Boraginaceae | |
| calcareous rimmed lichen | Aspicilia calcarea (L.) Mudd | ASCA38 | Hymeneliaceae | |
| Calder's rockcress | Arabis calderi G. Mulligan | ARCA48 | Brassicaceae | |
| calibrachoa | Calibrachoa Llave & Lex. | CALIB | Solanaceae | |
| Caliche sandmat | Chamaesyce velleriflora (Klotzsch & Garcke) Millsp. | CHVE11 | Euphorbiaceae | |
| calicoplant | Alternanthera bettzichiana (Regel) Voss | ALBE | Amaranthaceae | |
| California alsia moss | Alsia californica (Hook. & Arnott) Sull. | ALCA19 | Leucodontaceae | |
| California amaranth | Amaranthus californicus (Moq.) S. Wats. | AMCA | Amaranthaceae | |
| California amphidium moss | Amphidium californicum (Hampe ex C. Müll.) Broth. | AMCA13 | Orthotrichaceae | |
| California angelica | Angelica californica Jepson | ANCA32 | Apiaceae | |
| California antitrichia moss | Antitrichia californica Sull. in Lesq. | ANCA37 | Leucodontaceae | |
| California ayenia | Ayenia compacta Rose | AYCO | Sterculiaceae | |
| California balsamroot | Balsamorhiza macrolepis Sharp | BAMA3 | Asteraceae | |
| California balsamroot | Balsamorhiza macrolepis Sharp var. macrolepis | BAMAM | Asteraceae | |
| California balsamroot | Balsamorhiza macrolepis Sharp var. platylepis (Sharp) Ferris | BAMAP | Asteraceae | |
| California bastard toadflax | Comandra umbellata (L.) Nutt. ssp. californica (Eastw. ex Rydb.) Piehl | COUMC | Santalaceae | |
| California bearpoppy | Arctomecon californica Torr. & Frém. | ARCA4 | Papaveraceae | |
| California bentgrass | Agrostis densiflora Vasey | AGDE7 | Poaceae | |
| California boxelder | Acer negundo L. var. californicum (Torr. & Gray) Sarg. | ACNEC2 | Aceraceae | |
| California brickellbush | Brickellia californica (Torr. & Gray) Gray | BRCA3 | Asteraceae | |
| California brickellbush | Brickellia californica (Torr. & Gray) Gray var. californica | BRCAC | Asteraceae | |
| California brodiaea | Brodiaea californica Lindl. | BRCA4 | Liliaceae | |
| California brodiaea | Brodiaea californica Lindl. ssp. californica | BRCAC9 | Liliaceae | |
| California brodiaea | Brodiaea californica Lindl. ssp. leptandra (Greene) J.C. Pires | BRCAL3 | Liliaceae | |
| California brome | Bromus carinatus Hook. & Arn. | BRCA5 | Poaceae | |
| California buckeye | Aesculus californica (Spach) Nutt. | AECA | Hippocastanaceae | |
| California cholla | Cylindropuntia californica (Torr. & Gray) F.M. Knuth | CYCA25 | Cactaceae | |
| California clematis | Clematis ligusticifolia Nutt. var. californica S. Wats. | CLLIC | Ranunculaceae | |
| California copperleaf | Acalypha californica Benth. | ACCA3 | Euphorbiaceae | |
| California cracked lichen | Acarospora californica Zahlbr. | ACCA15 | Acarosporaceae | |
| California croton | Croton californicus Muell.-Arg. | CRCA5 | Euphorbiaceae | |
| California croton | Croton californicus Muell.-Arg. var. californicus | CRCAC | Euphorbiaceae | |
| California croton | Croton californicus Muell.-Arg. var. tenuis (S. Wats.) Ferguson | CRCAT | Euphorbiaceae | |
| California dutchman's pipe | Aristolochia californica Torr. | ARCA10 | Aristolochiaceae | |
| California false indigo | Amorpha californica Nutt. | AMCA5 | Fabaceae | |
| California false indigo | Amorpha californica Nutt. var. californica | AMCAC | Fabaceae | |
| California goosefoot | Chenopodium californicum (S. Wats.) S. Wats. | CHCA3 | Chenopodiaceae | |
| California groundcone | Boschniakia strobilacea Gray | BOST2 | Orobanchaceae | |
| California harebell | Asyneuma prenanthoides (Dur.) McVaugh | ASPR10 | Campanulaceae | |
| California hazelnut | Corylus cornuta Marsh. var. californica (A. DC.) Sharp | COCOC | Betulaceae | |
| California lacefern | Aspidotis californica (Hook.) Nutt. ex Copeland | ASCA5 | Pteridaceae | |
| California lady's slipper | Cypripedium californicum Gray | CYCA4 | Orchidaceae | |
| California maidenhair | Adiantum jordanii C. Muell. | ADJO | Pteridaceae | |
| California milkweed | Asclepias californica Greene | ASCA3 | Asclepiadaceae | |
| California milkweed | Asclepias californica Greene ssp. californica | ASCAC3 | Asclepiadaceae | |
| California needlegrass | Achnatherum occidentale (Thurb.) Barkworth ssp. californicum (Merr. & Burtt-Davey) Barkworth | ACOCC | Poaceae | |
| California orange lichen | Caloplaca californica Zahlbr. | CACA60 | Teloschistaceae | |
| California prickbush | Adolphia californica S. Wats. | ADCA2 | Rhamnaceae | |
| California pricklypear | Cylindropuntia californica (Torr. & Gray) F.M. Knuth var. californica | CYCAC | Cactaceae | |
| California red fir | Abies magnifica A. Murr. | ABMA | Pinaceae | |
| California redbud | Cercis orbiculata Greene | CEOR9 | Fabaceae | |
| California rockcress | Arabis sparsiflora Nutt. var. californica Rollins | ARSPC | Brassicaceae | |
| California rockflower | Crossosoma californicum Nutt. | CRCA4 | Crossosomataceae | |
| California rockjasmine | Androsace elongata L. | ANEL2 | Primulaceae | |
| California rockjasmine | Androsace elongata L. ssp. acuta (Greene) G.T. Robbins | ANELA | Primulaceae | |
| California saltbush | Atriplex californica Moq. | ATCA | Chenopodiaceae | |
| California sandaster | Corethrogyne filaginifolia (Hook. & Arn.) Nutt. var. californica (DC.) J.P. Saroyan | COFIC | Asteraceae | |
| California sawgrass | Cladium californicum (S. Wats.) O'Neill | CLCA2 | Cyperaceae | |
| California seapink | Armeria maritima (P. Mill.) Willd. ssp. californica (Boiss.) Porsild | ARMAC2 | Plumbaginaceae | |
| California sedge | Carex californica Bailey | CACA9 | Cyperaceae | |
| California silverbush | Argythamnia californica Brandeg. | ARCA19 | Euphorbiaceae | |
| California spikenard | Aralia californica S. Wats. | ARCA2 | Araliaceae | |
| California suncup | Camissonia californica (Nutt. ex Torr. & Gray) Raven | CACA32 | Onagraceae | |
| California threeawn | Aristida californica Thurb. ex S. Wats. | ARCA9 | Poaceae | |
| California threeawn | Aristida californica Thurb. ex S. Wats. var. californica | ARCAC8 | Poaceae | |
| California tickseed | Coreopsis californica (Nutt.) H.K. Sharsmith | COCA8 | Asteraceae | |
| California tickseed | Coreopsis californica (Nutt.) H.K. Sharsmith var. californica | COCAC4 | Asteraceae | |
| California yarrow | Achillea millefolium L. var. californica (Pollard) Jepson | ACMIC | Asteraceae | |
| Calistoga ceanothus | Ceanothus divergens Parry | CEDI | Rhamnaceae | |
| callaeum | Callaeum Small | CALLA2 | Malpighiaceae | |
| callalily | Calla L. | CALLA | Araceae | |
| Callaway milkvetch | Astragalus callithrix Barneby | ASCA8 | Fabaceae | |
| callicladium moss | Callicladium Crum | CALLI9 | Hypnaceae | |
| callicladium moss | Callicladium haldanianum (Grev.) Crum | CAHA32 | Hypnaceae | |
| callicostella moss | Callicostella (C. Müll.) Mitt. | CALLI13 | Callicostaceae | |
| calliergon moss | Calliergon (Sull.) Kindb. | CALLI10 | Amblystegiaceae | |
| calliergon moss | Calliergon cordifolium (Hedw.) Kindb. | CACO70 | Amblystegiaceae | |
| calliergon moss | Calliergon megalophyllum Mik. | CAME30 | Amblystegiaceae | |
| calliergon moss | Calliergon obtusifolium Karcz. | CAOB11 | Amblystegiaceae | |
| calliergon moss | Calliergon orbicularicordatum (Ren. & Card.) Broth. | CAOR18 | Amblystegiaceae | |
| calliergon moss | Calliergon stramineum (Brid.) Kindb. | CAST70 | Amblystegiaceae | |
| calliergon moss | Calliergon trifarium (Web. & Mohr) Kindb. | CATR27 | Amblystegiaceae | |
| calliergonella moss | Calliergonella cuspidata (Hedw.) Loeske | CACU18 | Amblystegiaceae | |
| calliergonella moss | Calliergonella Loeske | CALLI11 | Amblystegiaceae | |
| callistephus | Callistephus Cass. | CALLI8 | Asteraceae | |
| Call's angelica | Angelica callii Mathias & Constance | ANCA13 | Apiaceae | |
| caloncoba | Caloncoba echinata (Oliver) Gilg | CAEC2 | Flacourtiaceae | |
| caloncoba | Caloncoba Gilg | CALON | Flacourtiaceae | |
| calopadia lichen | Calopadia fusca (Mull. Arg.) Vezda | CAFU5 | Ectolechiaceae | |
| calopadia lichen | Calopadia Vezda | CALOP5 | Ectolechiaceae | |
| calophyllum | Calophyllum cholobtaches Laut. | CACH34 | Clusiaceae | |
| calophyllum | Calophyllum L. | CALOP | Clusiaceae | |
| calopo | Calopogonium mucunoides Desv. | CAMU11 | Fabaceae | |
| calopogonium | Calopogonium Desv. | CALOP3 | Fabaceae | |
| calotis | Calotis R. Br. | CALOT2 | Asteraceae | |
| calotropis | Calotropis R. Br. | CALOT | Asclepiadaceae | |
| calycera | Calycera Cav. | CALYC10 | Calyceraceae | |
| calycocarpum | Calycocarpum (Nutt.) Spach | CALYC2 | Menispermaceae | |
| calycophyllum | Calycophyllum DC. | CALYC9 | Rubiaceae | |
| calymperes moss | Calymperes erosum C. Müll. | CAER7 | Calymperaceae | |
| calymperes moss | Calymperes Sw. in Web. | CALYM | Calymperaceae | |
| calymperes moss | Calymperes tenerum C. Müll. | CATE25 | Calymperaceae | |
| calyptocarpus | Calyptocarpus Less. | CALYP2 | Asteraceae | |
| camas | Camassia Lindl. | CAMAS | Liliaceae | |
| camasey terciopelo | Clidemia cymosa (Wendl. ex Spreng.) Alain | CLCY5 | Melastomataceae | |
| Camatta Canyon amole | Chlorogalum purpureum Brandeg. var. reductum Hoover | CHPUR | Liliaceae | |
| camel grass | Cymbopogon schoenanthus (L.) Spreng. [excluded] | CYSC8 | Poaceae | |
| camellia | Camellia japonica L. | CAJA9 | Theaceae | |
| camellia | Camellia L. | CAMEL2 | Theaceae | |
| camel's foot | Bauhinia esculenta Burchell | BAES | Fabaceae | |
| camelthorn | Acacia erioloba E. Mey. | ACER4 | Fabaceae | |
| camelthorn | Alhagi maurorum Medik. | ALMA12 | Fabaceae | |
| camito de perro | Chrysophyllum pauciflorum Lam. | CHPA31 | Sapotaceae | |
| camphortree | Cinnamomum camphora (L.) J. Presl | CICA | Lauraceae | |
| Campo clarkia | Clarkia delicata (Abrams) A. Nels. & J.F. Macbr. | CLDE2 | Onagraceae | |
| campsis | Campsis Lour. | CAMPS | Bignoniaceae | |
| camptotheca | Camptotheca acuminata Decne. | CAAC12 | Cornaceae | |
| camptotheca | Camptotheca Decne. | CAMPT2 | Cornaceae | |
| campylium moss | Campylium (Sull.) Mitt. | CAMPY3 | Amblystegiaceae | |
| campylium moss | Campylium polygamum (Schimp. in B.S.G.) C. Jens. | CAPO17 | Amblystegiaceae | |
| campylium moss | Campylium radicale (P. Beauv.) Grout | CARA18 | Amblystegiaceae | |
| campylopodiella moss | Campylopodiella Card. | CAMPY8 | Dicranaceae | |
| campylopodiella moss | Campylopodiella stenocarpa (Wils. in Seem.) P. Müll. & J.-P. Frahm | CAST49 | Dicranaceae | |
| campylopus moss | Campylopus angustiretis (Aust.) Lesq. & James | CAAN27 | Dicranaceae | |
| campylopus moss | Campylopus arctocarpus (Hornsch.) Mitt. | CAAR41 | Dicranaceae | |
| campylopus moss | Campylopus atrovirens De Not. | CAAT16 | Dicranaceae | |
| campylopus moss | Campylopus atrovirens De Not. var. cucullatifolius J.-P. Frahm | CAATC3 | Dicranaceae | |
| campylopus moss | Campylopus aureus Bosch & Sande Lac. | CAAU20 | Dicranaceae | |
| campylopus moss | Campylopus Brid. | CAMPY4 | Dicranaceae | |
| campylopus moss | Campylopus flexuosus (Hedw.) Brid. | CAFL35 | Dicranaceae | |
| campylopus moss | Campylopus introflexus (Hedw.) Brid. | CAIN45 | Dicranaceae | |
| campylopus moss | Campylopus pilifer Brid. | CAPI17 | Dicranaceae | |
| campylopus moss | Campylopus pyriformis (Schultz) Brid. | CAPY9 | Dicranaceae | |
| campylopus moss | Campylopus subulatus Schimp. in Rabenh. | CASU55 | Dicranaceae | |
| campylopus moss | Campylopus zygodonticarpus (C. Müll.) Par. | CAZY | Dicranaceae | |
| campylostelium moss | Campylostelium Bruch & Schimp. in B.S.G. | CAMPY5 | Ptychomitriaceae | |
| campylostelium moss | Campylostelium saxicola (Web. & Mohr) Bruch & Schimp. in B.S.G. | CASA30 | Ptychomitriaceae | |
| camwood | Baphia nitida Lodd. | BANI3 | Fabaceae | |
| cana de India | Costus guanaiensis Rusby | COGU | Costaceae | |
| cana de India | Costus guanaiensis Rusby var. macrostrobilus (K. Schum.) Maas | COGUM | Costaceae | |
| Canada cracked lichen | Acarospora canadensis H. Magn. | ACCA16 | Acarosporaceae | |
| Canada eggyolk lichen | Candelariella canadensis H. Magn. | CACA67 | Candelariaceae | |
| Canada thistle | Cirsium arvense (L.) Scop. | CIAR4 | Asteraceae | |
| Canadian anemone | Anemone canadensis L. | ANCA8 | Ranunculaceae | |
| Canadian honewort | Cryptotaenia canadensis (L.) DC. | CRCA9 | Apiaceae | |
| Canadian horseweed | Conyza canadensis (L.) Cronq. | COCA5 | Asteraceae | |
| Canadian horseweed | Conyza canadensis (L.) Cronq. var. canadensis | COCAC3 | Asteraceae | |
| Canadian horseweed | Conyza canadensis (L.) Cronq. var. glabrata (Gray) Cronq. | COCAG | Asteraceae | |
| Canadian horseweed | Conyza canadensis (L.) Cronq. var. pusilla (Nutt.) Cronq. | COCAP3 | Asteraceae | |
| Canadian milkvetch | Astragalus canadensis L. | ASCA11 | Fabaceae | |
| Canadian milkvetch | Astragalus canadensis L. var. canadensis | ASCAC6 | Fabaceae | |
| Canadian pussytoes | Antennaria howellii Greene ssp. canadensis (Greene) Bayer | ANHOC | Asteraceae | |
| Canadian serviceberry | Amelanchier canadensis (L.) Medik. | AMCA4 | Rosaceae | |
| Canadian wildginger | Asarum canadense L. | ASCA | Aristolochiaceae | |
| canarina | Canarina L. | CANAR3 | Campanulaceae | |
| Canary bryum moss | Bryum canariense Brid. | BRCA22 | Bryaceae | |
| Canary Island flatpod | Adenocarpus foliolosus (Aiton) DC. | ADFO2 | Fabaceae | |
| canarybird-bush | Crotalaria agatiflora Schweinf. | CRAG2 | Fabaceae | |
| Canby's angelica | Angelica canbyi Coult. & Rose | ANCA11 | Apiaceae | |
| cancer-root | Conopholis Wallr. | CONOP | Orobanchaceae | |
| candelabra aloe | Aloe arborescens Miller | ALAR8 | Aloaceae | |
| candelabra wattle | Acacia holosericea A. Cunn. ex G. Don | ACHO2 | Fabaceae | |
| candelina lichen | Candelina Poelt | CANDE4 | Candelariaceae | |
| candelina lichen | Candelina submexicana (de Lesd.) Poelt | CASU41 | Candelariaceae | |
| candle anemone | Anemone cylindrica Gray | ANCY | Ranunculaceae | |
| candle cholla | Cylindropuntia kleiniae (DC.) F.M. Knuth | CYKL | Cactaceae | |
| cane | Arundinaria Michx. | ARUND2 | Poaceae | |
| cane bluestem | Bothriochloa barbinodis (Lag.) Herter | BOBA3 | Poaceae | |
| canelillo | Aniba bracteata (Nees) Mez | ANBR7 | Lauraceae | |
| canereed | Costus speciosus (Koenig) Sm. | COSP8 | Costaceae | |
| canihua | Chenopodium pallidicaule Aellen | CHPA23 | Chenopodiaceae | |
| canna | Canna L. | CANNA2 | Cannaceae | |
| canna lily | Canna ×generalis Bailey (pro sp.) [glauca × indica] | CAGE3 | Cannaceae | |
| cannonball tree | Couroupita Aubl. | COURO | Lecythidaceae | |
| cannonball tree | Couroupita guianensis Aubl. | COGU3 | Lecythidaceae | |
| canoe milkvetch | Astragalus cymboides M.E. Jones | ASCY2 | Fabaceae | |
| canoparmelia lichen | Canoparmelia crozalsiana (de Lesd. ex Harm.) Elix & Hale | CACR23 | Parmeliaceae | |
| canoparmelia lichen | Canoparmelia cryptochlorophaea (Hale) Elix & Hale | CACR24 | Parmeliaceae | |
| canoparmelia lichen | Canoparmelia Elix & Hale | CANOP2 | Parmeliaceae | |
| canoparmelia lichen | Canoparmelia martinicana (Nyl.) Elix & Hale | CAMA39 | Parmeliaceae | |
| canoparmelia lichen | Canoparmelia salacinifera (Hale) Elix & Hale | CASA25 | Parmeliaceae | |
| canotia | Canotia Torr. | CANOT | Celastraceae | |
| cantala | Agave cantala Roxb. | AGCA9 | Agavaceae | |
| cantaloupe | Cucumis melo L. | CUME | Cucurbitaceae | |
| Canterbury bells | Campanula medium L. | CAME20 | Campanulaceae | |
| cantua | Cantua Juss. ex Lam. | CANTU | Polemoniaceae | |
| canyon clarkia | Clarkia epilobioides (Nutt. ex Torr. & Gray) A. Nels. & J.F. Macbr. | CLEP | Onagraceae | |
| canyon cryptantha | Cryptantha tenuis (Eastw.) Payson | CRTE8 | Boraginaceae | |
| canyon dodder | Cuscuta ceanothi Behr | CUCE2 | Cuscutaceae | |
| canyon maple | Acer grandidentatum Nutt. var. sinuosum (Rehd.) Little | ACGRS | Aceraceae | |
| cap lichen | Baeomyces carneus Florke | BACA10 | Baeomycetaceae | |
| cap lichen | Baeomyces Pers. | BAEOM2 | Baeomycetaceae | |
| cap lichen | Baeomyces placophyllus Ach. | BAPL60 | Baeomycetaceae | |
| cap lichen | Baeomyces rufus (Hudson) Rebent. | BARU5 | Baeomycetaceae | |
| caparosa | Callicarpa ampla Schauer | CAAM14 | Verbenaceae | |
| Cape African-queen | Anisodontea capensis (L.) Bates | ANCA46 | Malvaceae | |
| Cape aloe | Aloe ferox Miller | ALFE2 | Aloaceae | |
| Cape bugloss | Anchusa capensis Thunb. | ANCA29 | Boraginaceae | |
| Cape marigold | Castalis tragus (Ait.) Norl. | CATR18 | Asteraceae | |
| Cape pondweed | Aponogeton distachyos L. f. | APDI | Aponogetonaceae | |
| Cape Province pygmyweed | Crassula multicava Lem. | CRMU10 | Crassulaceae | |
| Cape ricegrass | Achnatherum capense (Thunb.) Beauv. | ACCA34 | Poaceae | |
| Cape Sable thoroughwort | Chromolaena frustrata (B.L. Robins.) King & H.E. Robins. | CHFR4 | Asteraceae | |
| Cape Sable whiteweed | Ageratum littorale Gray | AGLI3 | Asteraceae | |
| Cape-chestnut | Calodendrum capense Thunb. | CACA88 | Rutaceae | |
| caper | Capparis baducca L. | CABA2 | Capparaceae | |
| caper | Capparis L. | CAPPA | Capparaceae | |
| caper | Capparis spinosa L. [excluded] | CASP28 | Capparaceae | |
| Capeweed | Arctotheca calendula (L.) Levyns | ARCA45 | Asteraceae | |
| Capeweed | Arctotheca J.C. Wendl. | ARCTO11 | Asteraceae | |
| capillary hairsedge | Bulbostylis ciliatifolia (Ell.) Fern. | BUCI | Cyperaceae | |
| capillary hairsedge | Bulbostylis ciliatifolia (Ell.) Fern. var. ciliatifolia | BUCIC2 | Cyperaceae | |
| capillary hairsedge | Bulbostylis ciliatifolia (Ell.) Fern. var. coarctata (Ell.) Kral | BUCIC | Cyperaceae | |
| capitate cryptantha | Cryptantha capitata (Eastw.) I.M. Johnston | CRCA13 | Boraginaceae | |
| capitate sedge | Carex capitata L. | CACA13 | Cyperaceae | |
| capitate sedge | Carex capitata L. ssp. arctogena (H. Sm.) Hiitonen | CACAA2 | Cyperaceae | |
| capitate sedge | Carex capitata L. ssp. capitata | CACAC7 | Cyperaceae | |
| capraria | Capraria L. | CAPRA2 | Scrophulariaceae | |
| capsella | Capsella Medik. | CAPSE | Brassicaceae | |
| cara de caballo | Aglaonema pictum (Roxb.) Kunth | AGPI2 | Araceae | |
| Caracas rattlebox | Crotalaria micans Link | CRMI9 | Fabaceae | |
| caralluma | Caralluma R. Br. | CARAL | Asclepiadaceae | |
| carambola | Averrhoa carambola L. | AVCA | Oxalidaceae | |
| carapa | Carapa Aublet | CARAP2 | Meliaceae | |
| caraway | Carum carvi L. | CACA19 | Apiaceae | |
| carbonea lichen | Carbonea (Hertel) Hertel | CARBO2 | Lecanoraceae | |
| carbonea lichen | Carbonea atronivea (Arnold) Hertel | CAAT21 | Lecanoraceae | |
| carbonea lichen | Carbonea vitellinaria (Nyl.) Hertel | CAVI19 | Lecanoraceae | |
| carbonea lichen | Carbonea vorticosa (Florke) Hertel | CAVO60 | Lecanoraceae | |
| cardamom | Amomum Roxb. | AMOMU | Zingiberaceae | |
| cardinal's feather | Acalypha radians Torr. | ACRA | Euphorbiaceae | |
| cardionema | Cardionema DC. | CARDI | Caryophyllaceae | |
| cardoon | Cynara cardunculus L. | CYCA | Asteraceae | |
| Cardot's campylium moss | Campylium cardotii (Thér. in Holz.) Broth. | CACA76 | Amblystegiaceae | |
| carelessweed | Amaranthus palmeri S. Wats. | AMPA | Amaranthaceae | |
| Carey's balsamroot | Balsamorhiza careyana Gray | BACA3 | Asteraceae | |
| Carey's balsamroot | Balsamorhiza careyana Gray var. careyana | BACAC | Asteraceae | |
| Carey's sedge | Carex careyana Torr. ex Dewey | CACA14 | Cyperaceae | |
| Caribbean canna | Canna jaegeriana Urban | CAJA13 | Cannaceae | |
| Caribbean dot lichen | Arthonia caribaea (Ach.) A. Massal. | ARCA36 | Arthoniaceae | |
| Caribbean flatsedge | Cyperus calcicola Britt. | CYCA18 | Cyperaceae | |
| Caribbean hairsedge | Bulbostylis junciformis (Kunth) C.B. Clarke | BUJU2 | Cyperaceae | |
| Caribbean milkweed | Asclepias nivea L. | ASNI3 | Asclepiadaceae | |
| Caribbean myrtlecroton | Bernardia dichotoma (Willd.) Muell.-Arg. | BEDI2 | Euphorbiaceae | |
| Caribbean sedge | Carex polystachya Sw. ex Wahlenb. | CAPO5 | Cyperaceae | |
| Caribbean spiritweed | Aegiphila martinicensis Jacq. | AEMA | Verbenaceae | |
| Caribbean spleenwort | Asplenium rhomboidale Desv. | ASRH4 | Aspleniaceae | |
| Caribbean strap airplant | Catopsis nitida (Hook.) Griseb. | CANI6 | Bromeliaceae | |
| Caribbean swallow-wort | Cynanchum anegadense (Britt.) Alain | CYAN4 | Asclepiadaceae | |
| Caribbean thoroughwort | Chromolaena corymbosa (Aubl.) King & H.E. Robins. | CHCO9 | Asteraceae | |
| carica | Carica monoica Desf. | CAMO28 | Caricaceae | |
| carissa | Carissa L. | CARIS | Apocynaceae | |
| Carleton's sand verbena | Abronia carletonii Coult. & Fisher | ABCA | Nyctaginaceae | |
| carline thistle | Carlina L. | CARLI | Asteraceae | |
| carline thistle | Carlina vulgaris L. | CAVU3 | Asteraceae | |
| carline thistle | Carlina vulgaris L. ssp. longifolia Nyman | CAVUL | Asteraceae | |
| Carlott's horsehair lichen | Bryoria carlottae Brodo & D. Hawksw. | BRCA15 | Parmeliaceae | |
| Carlson's cyanea | Cyanea hamatiflora Rock ssp. carlsonii (Rock) Lammers | CYHAC | Campanulaceae | |
| carludovica | Carludovica Ruiz & Pavón | CARLU | Cyclanthaceae | |
| Carmel ceanothus | Ceanothus griseus (Trel.) McMinn | CEGR2 | Rhamnaceae | |
| carmichaelia | Carmichaelia R. Br. | CARMI2 | Fabaceae | |
| Carmichael's monkshood | Aconitum carmichaelii Debeaux | ACCA20 | Ranunculaceae | |
| carminatia | Carminatia Moc. ex DC. | CARMI | Asteraceae | |
| carnauba wax palm | Copernicia prunifera (Miller) H. Moore | COPR6 | Arecaceae | |
| Carnegie's cracked lichen | Acarospora carnegiei Zahlbr. | ACCA17 | Acarosporaceae | |
| caro de tres hojas | Cissus erosa L.C. Rich. | CIER | Vitaceae | |
| Carolina anemone | Anemone caroliniana Walt. | ANCA9 | Ranunculaceae | |
| Carolina bruchia moss | Bruchia carolinae Aust. | BRCA19 | Bruchiaceae | |
| Carolina campylopus moss | Campylopus carolinae Grout | CACA77 | Dicranaceae | |
| Carolina canoparmelia lichen | Canoparmelia caroliniana (Nyl.) Elix & Hale | CACA68 | Parmeliaceae | |
| Carolina coralbead | Cocculus carolinus (L.) DC. | COCA | Menispermaceae | |
| Carolina cup lichen | Cladonia caroliniana Tuck. | CLCA11 | Cladoniaceae | |
| Carolina dayflower | Commelina caroliniana Walt. | COCA17 | Commelinaceae | |
| Carolina doll's daisy | Boltonia caroliniana (Walt.) Fern. | BOCA2 | Asteraceae | |
| Carolina fanwort | Cabomba caroliniana Gray | CACA | Cabombaceae | |
| Carolina fanwort | Cabomba caroliniana Gray var. caroliniana | CACAC4 | Cabombaceae | |
| Carolina fanwort | Cabomba caroliniana Gray var. pulcherrima Harper | CACAP | Cabombaceae | |
| Carolina foxtail | Alopecurus carolinianus Walt. | ALCA4 | Poaceae | |
| Carolina hawthorn | Crataegus arcana Beadle | CRAR7 | Rosaceae | |
| Carolina milkweed | Asclepias cinerea Walt. | ASCI5 | Asclepiadaceae | |
| Carolina mosquitofern | Azolla caroliniana Willd. | AZCA | Azollaceae | |
| Carolina orange lichen | Caloplaca carolinae H. Magn. | CACA63 | Teloschistaceae | |
| Carolina sedge | Carex caroliniana Schwein. | CACA15 | Cyperaceae | |
| Carolina springbeauty | Claytonia caroliniana Michx. | CLCA | Portulacaceae | |
| Carolina springbeauty | Claytonia caroliniana Michx. var. caroliniana | CLCAC | Portulacaceae | |