| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CABR24 | Cactus brasiliensis Willd. | Opuntia brasiliensis | Cactaceae
|
| CACO56 | Cactus cochenilliferus L. | Opuntia cochenillifera | Cactaceae
|
| CADI22 | Cactus dillenii Ker-Gawl. | Opuntia stricta var. dillenii | Cactaceae
|
| CAFI8 | Cactus ficus-indica L. | Opuntia ficus-indica | Cactaceae
|
| CAFR13 | Cactus fragilis Nutt. | Opuntia fragilis var. fragilis | Cactaceae
|
| CAIN36 | Cactus intortus P. Mill. | Melocactus intortus | Cactaceae
|
| CAPE24 | Cactus pereskia L. | Pereskia aculeata | Cactaceae
|
| CAPU26 | Cactus pusillus Haw. | Opuntia pusilla | Cactaceae
|
| CARO23 | Cactus robustispinus (Schott ex Engelm.) Kuntze | Coryphantha scheeri var. robustispina | Cactaceae
|
| CASP19 | Cactus spinosissimus (P. Mill.) Martyn | Opuntia spinosissima | Cactaceae
|
| CAST37 | Cactus strictus Haw. | Opuntia stricta var. stricta | Cactaceae
|
| CATR15 | Cactus triacanthus Willd. | Opuntia triacantha | Cactaceae
|
| CAFA4 | Cadaba farinosa Forsskal | cadaba | Capparaceae
|
| CADAB | Cadaba Forsskal | cadaba | Capparaceae
|
| CAELO2 | Caelogyne Lindl. | caelogyne | Orchidaceae
|
| CAAT11 | Caesalpinia atropunctata Eifert | Caesalpinia wootonii | Fabaceae
|
| CABO6 | Caesalpinia bonduc (L.) Roxb. | yellow nicker | Fabaceae
|
| CABR20 | Caesalpinia brachycarpa (Gray) Fisher | broadpod nicker | Fabaceae
|
| CACA26 | Caesalpinia caudata (Gray) Fisher | tailed nicker | Fabaceae
|
| CACI19 | Caesalpinia ciliata (Bergius ex Wikstr.) Urban | mato | Fabaceae
|
| CACO28 | Caesalpinia coriaria (Jacq.) Willd. | divi divi | Fabaceae
|
| CACR28 | Caesalpinia crista auct. non L. | Caesalpinia bonduc | Fabaceae
|
| CACU10 | Caesalpinia culebrae (Britt. & Wilson) Alain | smooth yellow nicker | Fabaceae
|
| CADE15 | Caesalpinia decapetala (Roth) Alston | shoofly | Fabaceae
|
| CADI12 | Caesalpinia divergens Urban | small yellow nicker | Fabaceae
|
| CADR6 | Caesalpinia drepanocarpa (Gray) Fisher | sicklepod holdback | Fabaceae
|
| CADR3 | Caesalpinia drummondii (Torr. & Gray) Fisher | dwarf nicker | Fabaceae
|
| CAEC3 | Caesalpinia echinata Lam. | Brazilwood | Fabaceae
|
| CAGI | Caesalpinia gilliesii (Hook.) Wallich ex D. Dietr. | bird-of-paradise shrub | Fabaceae
|
| CAGL22 | Caesalpinia globulorum Bakh. f. & van Royen | Caesalpinia major | Fabaceae
|
| CAJA6 | Caesalpinia jamesii (Torr. & Gray) Fisher | James' holdback | Fabaceae
|
| CAKA5 | Caesalpinia kavaiensis Mann | uhiuhi | Fabaceae
|
| CAMA21 | Caesalpinia major (Medik.) Dandy & Exell | Hawai'i pearls | Fabaceae
|
| CAME15 | Caesalpinia melanosperma (Eggers) Urban | Caesalpinia ciliata | Fabaceae
|
| CAME | Caesalpinia mexicana Gray | Mexican holdback | Fabaceae
|
| CAMO14 | Caesalpinia monensis Britt. | black nicker | Fabaceae
|
| CAOX3 | Caesalpinia oxycarpa (Benth. ex Gray) Fisher | Hoffmannseggia oxycarpa | Fabaceae
|
| CAPA33 | Caesalpinia parryi (Fisher) Eifert | Parry's holdback | Fabaceae
|
| CAPA34 | Caesalpinia pauciflora (Griseb.) C. Wright ex Sauvalle | fewflower holdback | Fabaceae
|
| CAPH | Caesalpinia phyllanthoides Standl. | wait-a-bit vine | Fabaceae
|
| CAPO6 | Caesalpinia portoricensis (Britt. & Wilson) Alain | brown nicker | Fabaceae
|
| CAPU13 | Caesalpinia pulcherrima (L.) Sw. | pride-of-Barbados | Fabaceae
|
| CARE16 | Caesalpinia repens Eastw. | creeping nicker | Fabaceae
|
| CASA28 | Caesalpinia sappan L. | sappanwood | Fabaceae
|
| CASE15 | Caesalpinia sepiaria Roxb. | Caesalpinia decapetala | Fabaceae
|
| CASP11 | Caesalpinia spinosa (Molina) Kuntze | spiny holdback | Fabaceae
|
| CATE18 | Caesalpinia texensis (Fisher) Fisher | Caesalpinia drummondii | Fabaceae
|
| CAVI8 | Caesalpinia virgata Fisher | wand holdback | Fabaceae
|
| CAWO3 | Caesalpinia wootonii (Britt.) Eifert ex Isely | Wooton's holdback | Fabaceae
|
| CAESA | Caesalpinia L. | nicker | Fabaceae
|
| CAGL20 | Cailliea glomerata (Forsk.) J.F. Macbr. | Dichrostachys cinerea | Fabaceae
|
| CACA46 | Cajan cajan (L.) Huth | Cajanus cajan | Fabaceae
|
| CACA27 | Cajanus cajan (L.) Millsp. | pigeonpea | Fabaceae
|
| CAIN44 | Cajanus indicus Sprengel | Cajanus cajan | Fabaceae
|
| CASC33 | Cajanus scarabaeoides (L.) Thouars | | Fabaceae
|
| CAJAN | Cajanus Adans. | cajanus | Fabaceae
|
| CAAM17 | Cakile americana Nutt. | Cakile edentula ssp. edentula var. edentula | Brassicaceae
|
| CACA48 | Cakile cakile (L.) Karst. | Cakile maritima | Brassicaceae
|
| CACH20 | Cakile chapmanii Millsp. | Cakile lanceolata ssp. fusiformis | Brassicaceae
|
| CACO25 | Cakile constricta Rodman | Gulf Coast searocket | Brassicaceae
|
| CAEDC | Cakile edentula (Bigelow) Hook. ssp. californica (Heller) Hult�n | Cakile edentula ssp. edentula var. edentula | Brassicaceae
|
| CAEDE2 | Cakile edentula (Bigelow) Hook. ssp. edentula var. edentula | American searocket | Brassicaceae
|
| CAEDL2 | Cakile edentula (Bigelow) Hook. ssp. edentula var. lacustris Fern. | American searocket | Brassicaceae
|
| CAEDE | Cakile edentula (Bigelow) Hook. ssp. edentula | American searocket | Brassicaceae
|
| CAEDH | Cakile edentula (Bigelow) Hook. ssp. harperi (Small) Rodman | Harper's searocket | Brassicaceae
|
| CAEDL3 | Cakile edentula (Bigelow) Hook. ssp. lacustris (Fern.) Hult�n | Cakile edentula ssp. edentula var. lacustris | Brassicaceae
|
| CAEDC2 | Cakile edentula (Bigelow) Hook. var. californica (Heller) Fern. | Cakile edentula ssp. edentula var. edentula | Brassicaceae
|
| CAED | Cakile edentula (Bigelow) Hook. | American searocket | Brassicaceae
|
| CAFU3 | Cakile fusiformis Greene | Cakile lanceolata ssp. fusiformis | Brassicaceae
|
| CAGE4 | Cakile geniculata (B.L. Robins.) Millsp. | gulf searocket | Brassicaceae
|
| CAHA29 | Cakile harperi Small | Cakile edentula ssp. harperi | Brassicaceae
|
| CALA59 | Cakile lacustris (Fern.) Pobed. | Cakile edentula ssp. edentula var. lacustris | Brassicaceae
|
| CALAF | Cakile lanceolata (Willd.) O.E. Schulz ssp. fusiformis (Greene) Rodman | coastal searocket | Brassicaceae
|
| CALAL2 | Cakile lanceolata (Willd.) O.E. Schulz ssp. lanceolata | coastal searocket | Brassicaceae
|
| CALAP | Cakile lanceolata (Willd.) O.E. Schulz ssp. pseudoconstricta Rodman | coastal searocket | Brassicaceae
|
| CALAG2 | Cakile lanceolata (Willd.) O.E. Schulz var. geniculata (B.L. Robins.) Shinners | Cakile geniculata | Brassicaceae
|
| CALA2 | Cakile lanceolata (Willd.) O.E. Schulz | coastal searocket | Brassicaceae
|
| CAMAG | Cakile maritima Scop. var. geniculata B.L. Robins. | Cakile geniculata | Brassicaceae
|
| CAMA | Cakile maritima Scop. | European searocket | Brassicaceae
|
| CAKIL | Cakile P. Mill. | searocket | Brassicaceae
|
| CABI11 | Caladium bicolor (Ait.) Vent. | heart of Jesus | Araceae
|
| CALAD | Caladium Vent. | caladium | Araceae
|
| CAAC17 | Calamagrostis acutifolia (Schrad.) Rchb. | feather reed grass | Poaceae
|
| CAAN20 | Calamagrostis anomala Suksdorf | Calamagrostis canadensis var. canadensis | Poaceae
|
| CAAR30 | Calamagrostis arctica Vasey | Calamagrostis sesquiflora | Poaceae
|
| CAAR27 | Calamagrostis arenicola Fern. | Calamagrostis epigeios var. georgica | Poaceae
|
| CAAT14 | Calamagrostis atropurpurea Nash | Calamagrostis canadensis var. canadensis | Poaceae
|
| CABO | Calamagrostis bolanderi Thurb. | Bolander's reedgrass | Poaceae
|
| CABR | Calamagrostis breweri Thurb. | shorthair reedgrass | Poaceae
|
| CACA2 | Calamagrostis cainii A.S. Hitchc. | Cain's reedgrass | Poaceae
|
| CACA3 | Calamagrostis californica Kearney | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CACAL5 | Calamagrostis canadensis (Michx.) Beauv. ssp. langsdorfii (Link) Hult�n | Calamagrostis canadensis var. langsdorfii | Poaceae
|
| CACAA8 | Calamagrostis canadensis (Michx.) Beauv. var. acuminata Vasey ex Shear & Rydb. | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CACAA3 | Calamagrostis canadensis (Michx.) Beauv. var. arcta Stebbins | Calamagrostis stricta ssp. inexpansa | Poaceae
|
| CACAC10 | Calamagrostis canadensis (Michx.) Beauv. var. canadensis | bluejoint | Poaceae
|
| CACAI | Calamagrostis canadensis (Michx.) Beauv. var. imberbis (Stebbins) C.L. Hitchc. | bluejoint | Poaceae
|
| CACAL2 | Calamagrostis canadensis (Michx.) Beauv. var. lactea (Beal) C.L. Hitchc. | Calamagrostis canadensis var. langsdorfii | Poaceae
|
| CACAL3 | Calamagrostis canadensis (Michx.) Beauv. var. langsdorfii (Link) Inman | bluejoint | Poaceae
|
| CACAM | Calamagrostis canadensis (Michx.) Beauv. var. macouniana (Vasey) Stebbins | Macoun's reedgrass | Poaceae
|
| CACAP4 | Calamagrostis canadensis (Michx.) Beauv. var. pallida (Vasey & Scribn.) Stebbins | Calamagrostis canadensis var. canadensis | Poaceae
|
| CACAR | Calamagrostis canadensis (Michx.) Beauv. var. robusta Vasey | Calamagrostis canadensis var. canadensis | Poaceae
|