| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CAVEM2 | Carex vesicaria L. var. monile (Tuckerman) Fern. | blister sedge | Cyperaceae
|
| CAVER | Carex vesicaria L. var. raeana (Boott) Fern. | blister sedge | Cyperaceae
|
| CAVEV2 | Carex vesicaria L. var. vesicaria | blister sedge | Cyperaceae
|
| CAVE6 | Carex vesicaria L. | blister sedge | Cyperaceae
|
| CAVE9 | Carex vestita Willd. | velvet sedge | Cyperaceae
|
| CAVE10 | Carex vexans F.J. Herm. | Florida hammock sedge | Cyperaceae
|
| CAVI3 | Carex vicaria Bailey | western fox sedge | Cyperaceae
|
| CAVI7 | Carex virens sensu Mackenzie, non Lam. | Carex divulsa | Cyperaceae
|
| CAVIC | Carex virescens Muhl. ex Willd. var. costata (Schwein.) Dewey | Carex virescens | Cyperaceae
|
| CAVIS2 | Carex virescens Muhl. ex Willd. var. swanii Fern. | Carex swanii | Cyperaceae
|
| CAVI4 | Carex virescens Muhl. ex Willd. | ribbed sedge | Cyperaceae
|
| CAVIE | Carex viridula Michx. ssp. brachyrrhyncha (Celak.) B. Schmid var. elatior (Schlecht.) Crins | little green sedge | Cyperaceae
|
| CAVIB | Carex viridula Michx. ssp. brachyrrhyncha (Celak.) B. Schmid | little green sedge | Cyperaceae
|
| CAVIO | Carex viridula Michx. ssp. oedocarpa (Anderss.) B. Schmid | little green sedge | Cyperaceae
|
| CAVIV | Carex viridula Michx. ssp. viridula | little green sedge | Cyperaceae
|
| CAVI5 | Carex viridula Michx. | little green sedge | Cyperaceae
|
| CAVUP | Carex vulpinoidea Michx. var. platycarpa Hall | Carex triangularis | Cyperaceae
|
| CAVUP2 | Carex vulpinoidea Michx. var. pycnocephala F.J. Herm. | fox sedge | Cyperaceae
|
| CAVUV | Carex vulpinoidea Michx. var. vulpinoidea | fox sedge | Cyperaceae
|
| CAVU2 | Carex vulpinoidea Michx. | fox sedge | Cyperaceae
|
| CAWAH | Carex wahuensis C.A. Mey. ssp. herbstii T. Koyama | Herbst's sedge | Cyperaceae
|
| CAWAR2 | Carex wahuensis C.A. Mey. ssp. rubiginosa (R.W. Krauss) T. Koyama | Oahu sedge | Cyperaceae
|
| CAWAW | Carex wahuensis C.A. Mey. ssp. wahuensis | Oahu sedge | Cyperaceae
|
| CAWAR | Carex wahuensis C.A. Mey. var. rubiginosa R.W. Krauss | Carex wahuensis ssp. rubiginosa | Cyperaceae
|
| CAWA | Carex wahuensis C.A. Mey. | Oahu sedge | Cyperaceae
|
| CAWAB | Carex walteriana Bailey var. brevis (Bailey) Bailey | Carex striata var. brevis | Cyperaceae
|
| CAWA2 | Carex walteriana Bailey | Carex striata var. striata | Cyperaceae
|
| CAWH | Carex whitneyi Olney | Whitney's sedge | Cyperaceae
|
| CAWI7 | Carex wiegandii Mackenzie | Wiegand's sedge | Cyperaceae
|
| CAWIM | Carex willdenowii Schkuhr ex Willd. var. megarrhyncha F.J. Herm. | Willdenow's sedge | Cyperaceae
|
| CAWIW | Carex willdenowii Schkuhr ex Willd. var. willdenowii | Willdenow's sedge | Cyperaceae
|
| CAWI2 | Carex willdenowii Schkuhr ex Willd. | Willdenow's sedge | Cyperaceae
|
| CAWI3 | Carex williamsii Britt. | Williams' sedge | Cyperaceae
|
| CAWO2 | Carex woodii Dewey | pretty sedge | Cyperaceae
|
| CAWO | Carex wootonii Mackenzie | Wooton's sedge | Cyperaceae
|
| CAXE | Carex xerantica Bailey | whitescale sedge | Cyperaceae
|
| CAYO | Carex yosemitana Bailey | Carex sartwelliana | Cyperaceae
|
| CAREX | Carex L. | sedge | Cyperaceae
|
| CACA75 | Carica candamarcensis Hook. f. | Carica pubescens | Caricaceae
|
| CAMO28 | Carica monoica Desf. | carica | Caricaceae
|
| CAPA23 | Carica papaya L. | papaya | Caricaceae
|
| CAPU39 | Carica pubescens (A. DC.) Solms-Laub. | mountain papaya | Caricaceae
|
| CAPU40 | Carica pubescens Lenne & K. Koch | Carica pubescens | Caricaceae
|
| CAQU9 | Carica quercifolia (A. St. Hil.) Hieron. | oakleaf carica | Caricaceae
|
| CARIC | Carica L. | papaya | Caricaceae
|
| CACA74 | Carissa carandas L. | karanda | Apocynaceae
|
| CAED8 | Carissa edulis Vahl | Egyptian carissa | Apocynaceae
|
| CAGR15 | Carissa grandiflora (E. Mey.) A. DC. | Carissa macrocarpa | Apocynaceae
|
| CAMA37 | Carissa macrocarpa (Ecklon) A. DC. | amatungulu | Apocynaceae
|
| CARIS | Carissa L. | carissa | Apocynaceae
|
| CAVUL | Carlina vulgaris L. ssp. longifolia Nyman | carline thistle | Asteraceae
|
| CAVU3 | Carlina vulgaris L. | carline thistle | Asteraceae
|
| CARLI | Carlina L. | carline thistle | Asteraceae
|
| CAAR7 | Carlowrightia arizonica Gray | Arizona wrightwort | Acanthaceae
|
| CALI2 | Carlowrightia linearifolia (Torr.) Gray | heath wrightwort | Acanthaceae
|
| CAME18 | Carlowrightia mexicana Henrickson & Daniel | Mexican wrightwort | Acanthaceae
|
| CAPA42 | Carlowrightia parviflora (Buckl.) Wasshausen | smallflower wrightwort | Acanthaceae
|
| CAPA51 | Carlowrightia parvifolia Brandeg. | littleleaf wrightwort | Acanthaceae
|
| CAPU21 | Carlowrightia pubens Gray | Carlowrightia torreyana | Acanthaceae
|
| CASE3 | Carlowrightia serpyllifolia Gray | TransPecos wrightwort | Acanthaceae
|
| CATE15 | Carlowrightia texana Henrickson & Daniel | Texas wrightwort | Acanthaceae
|
| CATO13 | Carlowrightia torreyana Wasshausen | Torrey's wrightwort | Acanthaceae
|
| CARLO | Carlowrightia Gray | wrightwort | Acanthaceae
|
| CAPA65 | Carludovica palmata Ruiz & Pav�n | Panama hat plant | Cyclanthaceae
|
| CARLU | Carludovica Ruiz & Pav�n | carludovica | Cyclanthaceae
|
| CAWI11 | Carmichaelia williamsi Kirk | | Fabaceae
|
| CARMI2 | Carmichaelia R. Br. | carmichaelia | Fabaceae
|
| CATE8 | Carminatia tenuiflora DC. | plumeweed | Asteraceae
|
| CARMI | Carminatia Moc. ex DC. | carminatia | Asteraceae
|
| CARE22 | Carmona retusa (Vahl) Masamune | scorpionbush | Boraginaceae
|
| CARMO | Carmona Cav. | scorpionbush | Boraginaceae
|
| CAGI7 | Carnegia gigantea (Engelm.) Britt. & Rose | saguaro | Cactaceae
|
| CARNE | Carnegia Britt. & Rose | saguaro | Cactaceae
|
| CAGI10 | Carnegiea gigantea (Engelm.) Britton & Rose | saguaro | Cactaceae
|
| CARNE2 | Carnegiea Britton & Rose | saguaro | Cactaceae
|
| CACA17 | Carpenteria californica Torr. | tree anemone | Hydrangeaceae
|
| CARPE | Carpenteria Torr. | tree anemone | Hydrangeaceae
|
| CABE4 | Carphephorus bellidifolius (Michx.) Torr. & Gray | sandywoods chaffhead | Asteraceae
|
| CACA59 | Carphephorus carnosus (Small) C.W. James | pineland chaffhead | Asteraceae
|
| CACO37 | Carphephorus corymbosus (Nutt.) Torr. & Gray | coastalplain chaffhead | Asteraceae
|
| CAOD3 | Carphephorus odoratissimus (J.F. Gmel.) Herbert | vanillaleaf | Asteraceae
|
| CAPA53 | Carphephorus paniculatus (J.F. Gmel.) Herbert | hairy chaffhead | Asteraceae
|
| CAPS5 | Carphephorus pseudoliatris Cass. | bristleleaf chaffhead | Asteraceae
|
| CATOW | Carphephorus tomentosus (Michx.) Torr. & Gray var. walteri (Ell.) Fern. | Carphephorus tomentosus | Asteraceae
|
| CATO5 | Carphephorus tomentosus (Michx.) Torr. & Gray | woolly chaffhead | Asteraceae
|
| CARPH | Carphephorus Cass. | chaffhead | Asteraceae
|
| CABI6 | Carphochaete bigelovii Gray | Bigelow's bristlehead | Asteraceae
|
| CARPH2 | Carphochaete Gray | bristlehead | Asteraceae
|
| CAAM21 | Carpinus americana Michx. | Carpinus caroliniana ssp. caroliniana | Betulaceae
|
| CABEV | Carpinus betulus L. var. virginiana Marsh. | Carpinus caroliniana ssp. virginiana | Betulaceae
|
| CABE8 | Carpinus betulus L. | European hornbeam | Betulaceae
|
| CACAC2 | Carpinus caroliniana Walt. ssp. caroliniana | American hornbeam | Betulaceae
|
| CACAV | Carpinus caroliniana Walt. ssp. virginiana (Marsh.) Furlow | American hornbeam | Betulaceae
|
| CACAV2 | Carpinus caroliniana Walt. var. virginiana (Marsh.) Fern. | Carpinus caroliniana ssp. virginiana | Betulaceae
|
| CACA18 | Carpinus caroliniana Walt. | American hornbeam | Betulaceae
|
| CARPI | Carpinus L. | hornbeam | Betulaceae
|
| CAOR19 | Carpobolus orbicularis (Schwein.) Schwein. | Notothylas orbicularis var. orbicularis | Notothyladaceae
|
| CAAE8 | Carpobrotus aequilateralus auct. non (Haw.) N.E. Br. | Carpobrotus chilensis | Aizoaceae
|
| CACH38 | Carpobrotus chilensis (Molina) N.E. Br. | sea fig | Aizoaceae
|
| CAED3 | Carpobrotus edulis (L.) N.E. Br. | hottentot fig | Aizoaceae
|
| CARPO | Carpobrotus N.E. Br. | carpobrotus | Aizoaceae
|