| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CAFL26 | Capnoides flavulum (Raf.) Kuntze | Corydalis flavula | Fumariaceae
|
| CAHA24 | Capnoides halei Small | Corydalis micrantha ssp. australis | Fumariaceae
|
| CAHA23 | Capnoides hastatum Rydb. | Corydalis caseana ssp. hastata | Fumariaceae
|
| CAMI32 | Capnoides micranthum (Engelm. ex Gray) Britt. | Corydalis micrantha ssp. micrantha | Fumariaceae
|
| CAMO18 | Capnoides montanum (Engelm.) Britt. | Corydalis curvisiliqua ssp. occidentalis | Fumariaceae
|
| CASE16 | Capnoides sempervirens (L.) Borkh. | Corydalis sempervirens | Fumariaceae
|
| CAAM13 | Capparis amplissima Lam. | burro blanco | Capparaceae
|
| CAAT15 | Capparis atamisquea Kuntze, non Capparis emarginata A. Rich. nec Zipp. ex Span. | Atamisquea emarginata | Capparaceae
|
| CABA2 | Capparis baducca L. | caper | Capparaceae
|
| CACA99 | Capparis cartilaginea Decne. | | Capparaceae
|
| CACO5 | Capparis coccolobifolia Mart. ex Eichl. | Capparis hastata | Capparaceae
|
| CACO29 | Capparis corymbosa Lam. | corymbose caper | Capparaceae
|
| CACY | Capparis cynophallophora L. | Jamaican caper | Capparaceae
|
| CAFL2 | Capparis flexuosa (L.) L. | falseteeth | Capparaceae
|
| CAFR9 | Capparis frondosa Jacq. | Capparis baducca | Capparaceae
|
| CAHA9 | Capparis hastata Jacq. | broadleaf caper | Capparaceae
|
| CAIN21 | Capparis incana Kunth | hoary caper | Capparaceae
|
| CAIN5 | Capparis indica (L.) Druce | linguam | Capparaceae
|
| CAPO12 | Capparis portoricensis Urban | Capparis amplissima | Capparaceae
|
| CARU19 | Capparis rupestris Sibth. & Smith | Capparis spinosa | Capparaceae
|
| CASAZ | Capparis sandwichiana DC. var. zoharyi O.& I. Deg. | Capparis sandwichiana | Capparaceae
|
| CASA4 | Capparis sandwichiana DC. | native caper | Capparaceae
|
| CASP28 | Capparis spinosa L. | caper | Capparaceae
|
| CAPPA | Capparis L. | caper | Capparaceae
|
| CABI13 | Capraria biflora L. | goatweed | Scrophulariaceae
|
| CACR21 | Capraria crustacea L. | Lindernia crustacea | Scrophulariaceae
|
| CADU11 | Capraria durantifolia L. | Stemodia durantifolia | Scrophulariaceae
|
| CAME36 | Capraria mexicana Moric. ex Benth. | Capraria biflora | Scrophulariaceae
|
| CAPRA2 | Capraria L. | capraria | Scrophulariaceae
|
| CADA5 | Capriola dactylon (L.) Kuntze | Cynodon dactylon | Poaceae
|
| CABU2 | Capsella bursa-pastoris (L.) Medik. | shepherd's purse | Brassicaceae
|
| CARU22 | Capsella rubella Reut. | Capsella bursa-pastoris | Brassicaceae
|
| CAPSE | Capsella Medik. | capsella | Brassicaceae
|
| CAANA4 | Capsicum annuum L. var. annuum | cayenne pepper | Solanaceae
|
| CAANA5 | Capsicum annuum L. var. aviculare (Dierbach) D'Arcy & Eshbaugh | Capsicum annuum var. glabriusculum | Solanaceae
|
| CAANF2 | Capsicum annuum L. var. frutescens (L.) Kuntze | Capsicum annuum var. annuum | Solanaceae
|
| CAANG | Capsicum annuum L. var. glabriusculum (Dunal) Heiser & Pickersgill | cayenne pepper | Solanaceae
|
| CAANM4 | Capsicum annuum L. var. minimum (Miller) Heiser | Capsicum annuum var. glabriusculum | Solanaceae
|
| CAANM3 | Capsicum annuum L. var. minus (Fingerhuth) Shinners | Capsicum annuum var. glabriusculum | Solanaceae
|
| CAAN4 | Capsicum annuum L. | cayenne pepper | Solanaceae
|
| CABAB | Capsicum baccatum L. var. baccatum | locoto | Solanaceae
|
| CABAP | Capsicum baccatum L. var. pendulum (Willd.) Eshb. | aji | Solanaceae
|
| CABA29 | Capsicum baccatum L. | locoto | Solanaceae
|
| CABA13 | Capsicum baccatum auct. non L. | Capsicum annuum var. glabriusculum | Solanaceae
|
| CACH30 | Capsicum chinense Jacq. | aji | Solanaceae
|
| CAFR7 | Capsicum frutescens L. | Capsicum annuum var. annuum | Solanaceae
|
| CAFR15 | Capsicum frutescens sensu Standl., non L. | Capsicum annuum var. glabriusculum | Solanaceae
|
| CAPE31 | Capsicum pendulum Willd. | Capsicum baccatum var. pendulum | Solanaceae
|
| CAPU38 | Capsicum pubescens Ruiz & Pavon | rocoto | Solanaceae
|
| CAPSI | Capsicum L. | pepper | Solanaceae
|
| CAAR18 | Caragana arborescens Lam. | Siberian peashrub | Fabaceae
|
| CAAU10 | Caragana aurantiaca Koehne | dwarf peashrub | Fabaceae
|
| CABO19 | Caragana boisii C. K. Schneid. | Siberian pea-tree | Fabaceae
|
| CAFR80 | Caragana frutex (L.) K. Koch | Russian peashrub | Fabaceae
|
| CAKO6 | Caragana korshinskii Kom. | peashrub | Fabaceae
|
| CAMI48 | Caragana microphylla Lam. | littleleaf peashrub | Fabaceae
|
| CARAG | Caragana Fabr. | peashrub | Fabaceae
|
| CARU23 | Caralluma russelliana (Courbon ex Brongn.) Cufod. | | Asclepiadaceae
|
| CARAL | Caralluma R. Br. | caralluma | Asclepiadaceae
|
| CAGU6 | Carapa guianensis Aublet | crabwood | Meliaceae
|
| CARAP2 | Carapa Aublet | carapa | Meliaceae
|
| CACO57 | Carara coronopus (L.) Medik. | Coronopus squamatus | Brassicaceae
|
| CADI21 | Carara didyma (L.) Britt. | Coronopus didymus | Brassicaceae
|
| CAVE13 | Caraxeron vermiculare (L.) Raf. | Blutaparon vermiculare | Amaranthaceae
|
| CAAG4 | Carbonea aggregantula (Mull. Arg.) Diederich & Triebel | | Lecanoraceae
|
| CAAS13 | Carbonea assimilis (Korber) Th. Fr. | | Lecanoraceae
|
| CAAT21 | Carbonea atronivea (Arnold) Hertel | | Lecanoraceae
|
| CAIN48 | Carbonea intrusa (Th. Fr.) Rambold & Triebel | | Lecanoraceae
|
| CALA75 | Carbonea latypizodes (Nyl.) Knoph & Rambold | | Lecanoraceae
|
| CAVI19 | Carbonea vitellinaria (Nyl.) Hertel | | Lecanoraceae
|
| CAVO60 | Carbonea vorticosa (Florke) Hertel | | Lecanoraceae
|
| CARBO2 | Carbonea (Hertel) Hertel | carbonea | Lecanoraceae
|
| CAAN5 | Cardamine angulata Hook. | seaside bittercress | Brassicaceae
|
| CAANM | Cardamine angustata O.E. Schulz var. multifida (Muhl. ex Ell.) Ahles | Cardamine dissecta | Brassicaceae
|
| CAANO | Cardamine angustata O.E. Schulz var. ouachitana E.B. Sm. | Cardamine angustata | Brassicaceae
|
| CAAN11 | Cardamine angustata O.E. Schulz | slender toothwort | Brassicaceae
|
| CAAN12 | Cardamine �anomala (Eames) K. Schum. (pro sp.) | | Brassicaceae
|
| CAAR24 | Cardamine arenicola Britt. | Cardamine parviflora var. arenicola | Brassicaceae
|
| CABA18 | Cardamine barbareifolia DC. | Rorippa barbareifolia | Brassicaceae
|
| CABEB | Cardamine bellidifolia L. var. bellidifolia | alpine bittercress | Brassicaceae
|
| CABEP | Cardamine bellidifolia L. var. pachyphylla Coville & Leib. | alpine bittercress | Brassicaceae
|
| CABEP3 | Cardamine bellidifolia L. var. pinnatifida Hult�n | Cardamine bellidifolia var. bellidifolia | Brassicaceae
|
| CABES | Cardamine bellidifolia L. var. sinuata (J. Vahl) Lange | Cardamine bellidifolia var. bellidifolia | Brassicaceae
|
| CABE | Cardamine bellidifolia L. | alpine bittercress | Brassicaceae
|
| CABL6 | Cardamine blaisdellii Eastw. | Cardamine microphylla ssp. blaisdellii | Brassicaceae
|
| CABRB | Cardamine breweri S. Wats. var. breweri | Brewer's bittercress | Brassicaceae
|
| CABRL | Cardamine breweri S. Wats. var. leibergii (Holz.) C.L. Hitchc. | Leiberg's bittercress | Brassicaceae
|
| CABRO | Cardamine breweri S. Wats. var. orbicularis (Greene) Detling | Sierra bittercress | Brassicaceae
|
| CABR6 | Cardamine breweri S. Wats. | Brewer's bittercress | Brassicaceae
|
| CABU3 | Cardamine bulbosa (Schreb. ex Muhl.) B.S.P. | bulbous bittercress | Brassicaceae
|
| CACAC | Cardamine californica (Nutt.) Greene ssp. cuneata (Greene) O.E. Schulz | Cardamine californica var. cuneata | Brassicaceae
|
| CACAC3 | Cardamine californica (Nutt.) Greene var. californica | milkmaids | Brassicaceae
|
| CACAC15 | Cardamine californica (Nutt.) Greene var. cardiophylla (Greene) Rollins | milkmaids | Brassicaceae
|
| CACAC16 | Cardamine californica (Nutt.) Greene var. cuneata (Nutt.) Rollins | milkmaids | Brassicaceae
|
| CACAI3 | Cardamine californica (Nutt.) Greene var. integrifolia (Nutt.) Rollins | milkmaids | Brassicaceae
|
| CACAP2 | Cardamine californica (Nutt.) Greene var. pachystigma (S. Wats.) O.E. Schulz | Cardamine pachystigma var. pachystigma | Brassicaceae
|
| CACAR3 | Cardamine californica (Nutt.) Greene var. rupicola O.E. Schulz | Cardamine rupicola | Brassicaceae
|
| CACAS4 | Cardamine californica (Nutt.) Greene var. sinuata (Greene) O.E. Schulz | milkmaids | Brassicaceae
|
| CACA39 | Cardamine californica (Nutt.) Greene | milkmaids | Brassicaceae
|
| CACA57 | Cardamine callosicrenata Piper | Cardamine breweri var. leibergii | Brassicaceae
|
| CACA25 | Cardamine cardiophylla Greene | Cardamine californica var. cardiophylla | Brassicaceae
|