| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| COPA32 | Cora pavonia (Sw.) Fr. | Dictyonema glabratum | Corticiaceae
|
| COEM | Corallocarpus emetocatharticus (Gros.) Cogn. | Doyerea emetocathartica | Cucurbitaceae
|
| COBI11 | Corallorrhiza bigelovii S. Wats. | Corallorrhiza striata var. vreelandii | Orchidaceae
|
| COCO23 | Corallorrhiza corallorrhiza (L.) Karst. | Corallorrhiza trifida | Orchidaceae
|
| COMAM4 | Corallorrhiza maculata (Raf.) Raf. ssp. mertensiana (Bong.) Calder & Taylor | Corallorrhiza mertensiana | Orchidaceae
|
| COMAO3 | Corallorrhiza maculata (Raf.) Raf. ssp. occidentalis (Lindl.) Cockerell | Corallorrhiza maculata var. occidentalis | Orchidaceae
|
| COMAF | Corallorrhiza maculata (Raf.) Raf. var. flavida (M.E. Peck) Cockerell | Corallorrhiza maculata var. maculata | Orchidaceae
|
| COMAI | Corallorrhiza maculata (Raf.) Raf. var. immaculata M.E. Peck | Corallorrhiza maculata var. occidentalis | Orchidaceae
|
| COMAI2 | Corallorrhiza maculata (Raf.) Raf. var. intermedia Farw. | Corallorrhiza maculata var. occidentalis | Orchidaceae
|
| COMAM5 | Corallorrhiza maculata (Raf.) Raf. var. maculata | summer coralroot | Orchidaceae
|
| COMAO | Corallorrhiza maculata (Raf.) Raf. var. occidentalis (Lindl.) Ames | summer coralroot | Orchidaceae
|
| COMAP2 | Corallorrhiza maculata (Raf.) Raf. var. punicea Bartlett | Corallorrhiza maculata var. occidentalis | Orchidaceae
|
| COMA4 | Corallorrhiza maculata (Raf.) Raf. | summer coralroot | Orchidaceae
|
| COME4 | Corallorrhiza mertensiana Bong. | Pacific coralroot | Orchidaceae
|
| COMI7 | Corallorrhiza micrantha Chapman | Corallorrhiza odontorhiza var. odontorhiza | Orchidaceae
|
| COMU5 | Corallorrhiza multiflora Nutt. | Corallorrhiza maculata var. maculata | Orchidaceae
|
| COOC7 | Corallorrhiza ochroleuca Rydb. | Corallorrhiza striata var. striata | Orchidaceae
|
| COODO | Corallorrhiza odontorhiza (Willd.) Poir. var. odontorhiza | autumn coralroot | Orchidaceae
|
| COODP | Corallorrhiza odontorhiza (Willd.) Poir. var. pringlei (Greenm.) Freudenstein | autumn coralroot | Orchidaceae
|
| COOD | Corallorrhiza odontorhiza (Willd.) Poir. | autumn coralroot | Orchidaceae
|
| COSTF | Corallorrhiza striata Lindl. var. flavida Todsen & Todsen | Corallorrhiza striata var. striata | Orchidaceae
|
| COSTO3 | Corallorrhiza striata Lindl. var. ochroleuca (Rydb.) Magrath | Corallorrhiza striata var. striata | Orchidaceae
|
| COSTS | Corallorrhiza striata Lindl. var. striata | hooded coralroot | Orchidaceae
|
| COSTV | Corallorrhiza striata Lindl. var. vreelandii (Rydb.) L.O. Williams | Vreeland's coralroot | Orchidaceae
|
| COST | Corallorrhiza striata Lindl. | hooded coralroot | Orchidaceae
|
| COTRV | Corallorrhiza trifida Chatelain var. verna (Nutt.) Fern. | Corallorrhiza trifida | Orchidaceae
|
| COTR3 | Corallorrhiza trifida Chatelain | yellow coralroot | Orchidaceae
|
| COWI2 | Corallorrhiza wisteriana Conrad | spring coralroot | Orchidaceae
|
| CORAL2 | Corallorrhiza Gagnebin | coralroot | Orchidaceae
|
| COAC6 | Corchorus acutangulus Lam. | Corchorus aestuans | Tiliaceae
|
| COAE | Corchorus aestuans L. | jute | Tiliaceae
|
| COCA38 | Corchorus capsularis L. | jute | Tiliaceae
|
| COHI3 | Corchorus hirsutus L. | jackswitch | Tiliaceae
|
| COHIG | Corchorus hirtus L. var. glabellus Gray | Corchorus hirtus | Tiliaceae
|
| COHIO | Corchorus hirtus L. var. orinocensis (Kunth) K. Schum. | Corchorus hirtus | Tiliaceae
|
| COHI4 | Corchorus hirtus L. | Orinoco jute | Tiliaceae
|
| COOL | Corchorus olitorius L. | nalta jute | Tiliaceae
|
| COOR5 | Corchorus orinocensis Kunth | Corchorus hirtus | Tiliaceae
|
| COSI3 | Corchorus siliquosus L. | slippery burr | Tiliaceae
|
| COTR12 | Corchorus tridens L. | tridens corchorus | Tiliaceae
|
| COTR13 | Corchorus trilocularis L. | threelocule corchorus | Tiliaceae
|
| CORCH | Corchorus L. | corchorus | Tiliaceae
|
| COLE5 | Corculum leptopum (Hook. & Arn.) Stuntz | Antigonon leptopus | Polygonaceae
|
| COAL5 | Cordia alba (Jacq.) Roemer & J.A. Schultes | Trema micranthum | Ulmaceae
|
| COAL | Cordia alliodora (Ruiz & Pav�n) Oken | Spanish elm | Boraginaceae
|
| COAN11 | Cordia angustifolia (West ex Willd.) Roemer & J.A. Schultes | basora | Boraginaceae
|
| COBA4 | Cordia bahamensis Urban | Bahama manjack | Boraginaceae
|
| COBE3 | Cordia bellonis Urban | serpentine manjack | Boraginaceae
|
| COBO2 | Cordia boissieri A. DC. | anacahuita | Boraginaceae
|
| COBO3 | Cordia borinquensis Urban | muneco | Boraginaceae
|
| COBUH | Cordia bullata (L.) Roemer & J.A. Schultes ssp. humilis (Jacq.) Gaviria | Cordia globosa var. humilis | Boraginaceae
|
| COCO5 | Cordia collococca L. | red manjack | Boraginaceae
|
| CODE7 | Cordia dentata Poir. | Trema micranthum | Ulmaceae
|
| CODI18 | Cordia dichotoma G. Forst. | fragrant manjack | Boraginaceae
|
| COGE | Cordia gerascanthus L. | yauco | Boraginaceae
|
| COGL11 | Cordia glabra auct. non L. | Cordia collococca | Boraginaceae
|
| COGLH | Cordia globosa (Jacq.) Kunth var. humilis (Jacq.) I.M. Johnston | curaciao bush | Boraginaceae
|
| COGL6 | Cordia globosa (Jacq.) Kunth | curaciao bush | Boraginaceae
|
| COHU | Cordia humilis Jacq. | Cordia globosa var. humilis | Boraginaceae
|
| COLA12 | Cordia laevigata Lam. | smooth manjack | Boraginaceae
|
| COLI7 | Cordia lima (Desv.) Roemer & J.A. Schultes | lija | Boraginaceae
|
| COMY | Cordia myxa L. | Assyrian plum | Boraginaceae
|
| CONI | Cordia nitida Vahl ex West | Cordia laevigata | Boraginaceae
|
| COOB3 | Cordia obliqua Willd. | clammy cherry | Boraginaceae
|
| COPA16 | Cordia parvifolia A. DC. | small-leaf geigertree | Boraginaceae
|
| COPO2 | Cordia podocephala Torr. | Texas manjack | Boraginaceae
|
| COPO3 | Cordia polycephala (Lam.) I.M. Johnston | black-sage | Boraginaceae
|
| CORI | Cordia rickseckeri Millsp. | San Bartolome | Boraginaceae
|
| CORU5 | Cordia rupicola Urban | Puerto Rico manjack | Boraginaceae
|
| COSE2 | Cordia sebestena L. | largeleaf geigertree | Boraginaceae
|
| COST8 | Cordia stenophylla Alain | Cordia angustifolia | Boraginaceae
|
| COSU2 | Cordia subcordata Lam. | kou | Boraginaceae
|
| COSU3 | Cordia sulcata DC. | mucilage manjack | Boraginaceae
|
| COWA3 | Cordia wagneriorum Howard | Luquillo Mountain manjack | Boraginaceae
|
| CORDI | Cordia L. | cordia | Boraginaceae
|
| COBE | Cordylanthus bernardinus Munz | Cordylanthus eremicus ssp. eremicus | Scrophulariaceae
|
| COBO5 | Cordylanthus bolanderi (Gray) Pennell | Cordylanthus tenuis ssp. tenuis | Scrophulariaceae
|
| COBR2 | Cordylanthus brunneus (Jepson) Pennell | Cordylanthus tenuis ssp. brunneus | Scrophulariaceae
|
| COCA29 | Cordylanthus canescens Gray | Cordylanthus maritimus ssp. canescens | Scrophulariaceae
|
| COCA20 | Cordylanthus capillaris Pennell | Cordylanthus tenuis ssp. capillaris | Scrophulariaceae
|
| COCA7 | Cordylanthus capitatus Nutt. ex Benth. | Yakima bird's-beak | Scrophulariaceae
|
| COCA30 | Cordylanthus carnulosus Pennell | Cordylanthus palmatus | Scrophulariaceae
|
| COCO20 | Cordylanthus compactus Pennell | Cordylanthus rigidus ssp. rigidus | Scrophulariaceae
|
| CODI10 | Cordylanthus diffusus Pennell | Cordylanthus pilosus ssp. pilosus | Scrophulariaceae
|
| COERE2 | Cordylanthus eremicus (Coville & Morton) Munz ssp. eremicus | desert bird's-beak | Scrophulariaceae
|
| COERK | Cordylanthus eremicus (Coville & Morton) Munz ssp. kernensis Chuang & Heckard | Kern Plateau bird's-beak | Scrophulariaceae
|
| COER6 | Cordylanthus eremicus (Coville & Morton) Munz | desert bird's-beak | Scrophulariaceae
|
| COFE2 | Cordylanthus ferrisianus Pennell | Cordylanthus rigidus ssp. rigidus | Scrophulariaceae
|
| COFI | Cordylanthus filifolius Nutt. ex Benth. | Cordylanthus rigidus ssp. rigidus | Scrophulariaceae
|
| COGL13 | Cordylanthus glandulosus Pennell & Clokey | Cordylanthus parviflorus | Scrophulariaceae
|
| COHA | Cordylanthus hansenii (Ferris) J.F. Macbr. | Cordylanthus pilosus ssp. hansenii | Scrophulariaceae
|
| COHE4 | Cordylanthus helleri (Ferris) J.F. Macbr. | Cordylanthus kingii ssp. helleri | Scrophulariaceae
|
| COHI2 | Cordylanthus hispidus Pennell | Cordylanthus mollis ssp. hispidus | Scrophulariaceae
|
| COKID | Cordylanthus kingii S. Wats. ssp. densiflorus Chuang & Heckard | King's bird's-beak | Scrophulariaceae
|
| COKIH | Cordylanthus kingii S. Wats. ssp. helleri (Ferris) Chuang & Heckard | Heller's bird's-beak | Scrophulariaceae
|
| COKIK | Cordylanthus kingii S. Wats. ssp. kingii | King's bird's-beak | Scrophulariaceae
|
| COKID2 | Cordylanthus kingii S. Wats. var. densiflorus (Chuang & Heckard) Atwood | Cordylanthus kingii ssp. densiflorus | Scrophulariaceae
|
| COKIH2 | Cordylanthus kingii S. Wats. var. helleri (Ferris) N. Holmgren | Cordylanthus kingii ssp. helleri | Scrophulariaceae
|
| COKI | Cordylanthus kingii S. Wats. | King's bird's-beak | Scrophulariaceae
|
| COLA4 | Cordylanthus laxiflorus Gray | nodding bird's-beak | Scrophulariaceae
|
| COLIP | Cordylanthus littoralis (Ferris) J.F. Macbr. ssp. platycephalus (Pennell) Munz | Cordylanthus rigidus ssp. rigidus | Scrophulariaceae
|