COMMON NAME TO BOTANICAL NAME
| Common name | Botanical name |
| 1. Cabbage | Brassica oleracea |
| 2. Cabbage Tree | Andira inermis Andira retusa Avouacouapa retusa |
| 3. Cabbage Tree, New Zealand | Cordyline australis |
| 4. Cabello De Angel | Calliandra anomala |
| 5. Cacao | Theobroma cacao |
| 6. Cactus, Cochineal Insect | Opuntia cochinellifera |
| 7. Cactus, Prickly Pear | Opuntia compressa Opuntia phaecantha var. major |
| 8. Cajeput | Melaleuca decussata Melaleuca erucifolia Melaleuca hypericifolia Melaleuca lalifolia Melaleuca leucadendron Melaleuca minor Melaleuca veridifolia |
| 9. Calabar Bean | Physostigma venenosum |
| 10. Calabash | Lagenaria vulgaris |
| 11. Calamint | Calamintha officinalis Satureja calamintha |
| 12. Calamintha | Calamintha ascendens |
| 13. Calanthe | Calanthe veratrifolia |
| 14. Calathea | Calathea picturata |
| 15. Calf's Snout | Antirrhinum orontium |
| 16. Calico Plant | Aristolochia elegans |
| 17. California Poppy, Yellow | Eschscholzia caespitosa |
| 18. Calla Lily, Common | Zantedeschia aethiopica |
| 19. Calla, Wild | Calla palustris |
| 20. Calumba | Jateorhiza calumba |
| 21. Camass | Camassia esculenta Camassia camas Camassia quamash |
| 22. Camel Thorn | Acacia giraffae Alhagi pseudalhagi |
| 23. Camellia, Japanese | Camellia japonica |
| 24. Campernella | Narcissus odorus |
| 25. Camphor | Cinnamomum camphora Cinnamomum cinnamonum |
| 26. Camphor Plant | Balsamita vulgaris |
| 27. Camphor Southernwood | Artemisia camphorata |
| 28. Campion | Lychnis alpina Silene |
| 29. Camwood | Baphia nitida |
| 30. Canacian Hemp | Apocynum cannabinum |
| 31. Canahuate | Costus guanaiensis |
| 32. Canary Bird Vine | Tropaeolum peregrinum |
| 33. Canary grass | Phalaris canariensis |
| 34. Canary Grass, Reed | Phalaris arundinacea |
| 35. Canary Island Date Palm | Phoenix canariensis |
| 36. Cancer Wintergreen | Gaultheria hispidula |
| 37. Candelabra cactus | Euphorbia lactea |
| 38. Candelilla Wax | Euphorbia cerifera |
| 39. Candlestick Senna | Cassia alata |
| 40. Candytuft, Bitter | Iberis amara |
| 41. Candytuft, Edging | Iberis sempervirens |
| 42. Candytuft, Gibraltar | Iberis gibraltarica |
| 43. Canola | Brassica campestris |
| 44. Cantaloup Melon | Cucumis cantalupensis |
| 45. Canterbury Bells | Campanula medium |
| 46. Cape Aloe | Aloe ferox |
| 47. Cape Bladder Senna | Sutherlandia |
| 48. Cape Jasmine | Gardenia jasminoides |
| 49. Cape Pondweed | Aponogeton distachyus Aponogeton appendiculatus |
| 50. Caper Bush | Capparis spinosa var. inermis |
| 51. Caper-bush, Australian | Capparis spinosa var. nummularia |
| 52. Capparis | Capparis diversifolia Capparis fusifera Capparis rheedii |
| 53. Caracao Sarsaparilla | Sarsaparilla officinalis |
| 54. Carallia | Carallia brachiata |
| 55. Caraway | Carum carvi |
| 56. Caraway Thyme | Thymus herba-barona |
| 57. Caraway, Californian | Perideridia kelloggii |
| 58. Cardamom, Cluster | Amomum cardamomum |
| 59. Cardamom, Round | Amomum compactum |
| 60. Cardamom, True | Elettaria cardamomum |
| 61. Cardamoms, Bengal | Amomum subulatum |
| 62. Cardamoms, Ceylon Wild | Elettaria cardamomum var. major |
| 63. Cardamoms, Korarima | Amomum kararima |
| 64. Cardamoms, Winged Java | Amomum maximum |
| 65. Cardamums, Bastard | Amomum xanthioides |
| 66. Cardamums, Madagascar | Amomum angustifolium |
| 67. Cardamums, Siam | Amomum globosum |
| 68. Cardinal Climber | Quamoclit x sloteri |
| 69. Cardoon | Cynara cardunculus |
| 70. Cardoon Artichoke | Scolymus cardunculus |
| 71. Carline Thistle | Carlina vulgaris |
| 72. Caroba | Jacaranda procera Prosopis dulcis Prosopis siliquastrum |
| 73. Carolina Allspice | Calycanthus floridus |
| 74. Carolina Lupin | Thermopsis caroliniana |
| 75. Carolina Silverbell | Halesia carolina |
| 76. Carpet grass | Axonopus affinis |
| 77. Carpetweed | Mollugo verticillata |
| 78. Carragheen Moss | Gigartina stellata |
| 79. Carrot, Wild | Daucus carota |
| 80. Casca Paratuds | Cinnamodendron axillaris |
| 81. Cascara Sagrada | Rhamnus purshiana |
| 82. Cascarilla | Croton eleuteria Pogonopus febrifugus |
| 83. Cashew Nut | Anacardium occidentale |
| 84. Cashew Nut, Oriental / Ballataka | Semecarpus anacardium |
| 85. Cassabanana | Sicana odorifera |
| 86. Cassia | Cinnamomum aromaticum Cinnamomum cassia |
| 87. Cassia Vera | Cinnamomum tamala |
| 88. Cassia, Desert | Cassia eremophila |
| 89. Cast iron plant | Aspidistra elatior |
| 90. Castor Oil Plant | Ricinus communis |
| 91. Castus | Aplotaxis auriculata |
| 92. Casuarina | Casuarina equisetifolia |
| 93. Cat Thyme | Teucrium marum |
| 94. Catalpa, Yellow | Catalpa ovata |
| 95. Catechu, Black | Catechu nigrum |
| 96. Catechu, cachou, cutchtree | Acacia catechu |
| 97. Catmint | Mentha cataria Nepeta cataria |
| 98. Catmint, Clear Blue | Nepeta nervosa |
| 99. Catnip, Dwarf | Nepeta racemosa |
| 100. Catnip, Faassen's | Nepeta x faassenii |
| 101. Catnip, Lance-leaved | Nepeta lanceolata |
| 102. Catnip, Lemon-scented | Nepeta cataria 'Citriodora' |
| 103. Catnip, Siberian | Dracocephalum sibiricum |
| 104. Catsclaw | Acacia greggii |
| 105. Catsfoot | Antennaria dioica |
| 106. Catspaw | Anigozanthos humilis |
| 107. Cattail | Typha latifolia |
| 108. Cat-thorn | Acacia caffra |
| 109. Cattleya orchid | Cattleya |
| 110. Cauliflower | Brassica oleracea var. botrytis |
| 111. Cayenne | Capsicum minimum |
| 112. Cayratia | Cayratia roxburghii |
| 113. Cedar | Cedrela odorata Chamaecyparis |
| 114. Cedar Wattle | Acacia elata |
| 115. Cedar, African | Cedrus atlantica |
| 116. Cedar, Indian | Cedrus deodara |
| 117. Cedar, Japanese | Cryptomeria japonica |
| 118. Cedar, Lebanon | Cedrus libani |
| 119. Cedar, New Zealand | Libocedrus bidwillii |
| 120. Cedar, Red | Thuja plicata |
| 121. Cedar, White | Cupressus thujoides |
| 122. Cedar, Yellow | Thuja occidentalis |
| 123. Cedron | Simaba cedron |
| 124. Cee-gwa | Luffa acutangula |
| 125. Celandine | Chelidonium |
| 126. Celery or Celeriac | Apium graveolens var. rapaceum |
| 127. Celery-leaved Crowfoot | Ranunculus sceleratus |
| 128. Centaury | Centaurium erythraea Erythraea acaulis Sabatia campestris |
| 129. Centaury, American | Sabatia angularis |
| 130. Centaury, Common | Centaurium minus Centaurium umbellatum |
| 131. Century Plant | Agave |
| 132. Cereus | Cereus caespitosus Cereus divaricatus Cereus flagelliformis Cereus pilocereus |
| 133. Cereus, Night Blooming | Cereus grandiflorus |
| 134. Ceylon Agar-Agar | Gracillaria lichenoides |
| 135. Ceylon Moss | Fucus amylaceus |
| 136. Chamomile | Anthemis |
| 137. Chamomile, English | Chamaemelum nobile 'Treneague' |
| 138. Chamomile, German | Matricaria chamomilla Matricaria recutita |
| 139. Chamomile-leaved Artemisi | Artemisia chamaemelifolia |
| 140. Champ | Michelia champaca Linn. |
| 141. Changeable rose / Confederate rose | Hibiscus mutabilis |
| 142. Chaparral | Larrea tridentata |
| 143. Chapil | Crotalaria longirostrata |
| 144. Chapparal Morning Glory | Convolvulus occidentalis |
| 145. Chard | Beta vulgaris var. vulgaris |
| 146. Chaste Tree | Agnus castus |
| 147. Chaulmoogra | Taraktogenos kurzii |
| 148. Chaulmoogra tree | Hydnocarpus anthelmintica |
| 149. Cheken | Eugenia cheken |
| 150. Chenille Plant | Acalypha hispida |
| 151. Cherimoya | Asimina triloba |
| 152. Cherry Birch | Betula lenta |
| 153. Cherry Laurel | Prunus laurocerasus |
| 154. Cherry Plum | Prunus cerasifera |
| 155. Cherry Tomato | Lycopersicon pimpinellifolium |
| 156. Cherry, Bird | Prunus padus |
| 157. Cherry, Bitter | Prunus emarginata |
| 158. Cherry, Black | Prunus serotina |
| 159. Cherry, Holly-leaved | Prunus ilicifolia |
| 160. Cherry, Jerusalem | Solanum pseudo-capsicum |
| 161. Cherry, Manchurian | Prunus maackii |
| 162. Cherry, Pin | Prunus pensylvanica |
| 163. Cherry, Purpleleaf Sand | Prunus x cistena |
| 164. Cherry, Sargent | Prunus sargentii |
| 165. Cherry, Sour | Prunus cerasus |
| 166. Cherry, St Lucie | Prunus mahaleb |
| 167. Cherry, Tibetan | Prunus serrula |
| 168. Cherry, Wild | Prunus avium Prunus virginiana Prunus amygdalus |
| 169. Chervil | Anthriscus cerefolium Scandix cerefolium |
| 170. Chestnut, Water | Trapa natans |
| 171. Chia | Salvia columbariae |
| 172. Chickengrape | Vitis cordifolia |
| 173. Chickrassy | Chukrasia tabularis |
| 174. Chickweed | Stellaria media |
| 175. Chickweed Wintergreen | Trientalis europaea |
| 176. Chicory/ Coffee Chicory | Cichorium intybus |
| 177. Chilacayote | Cucurbita ficifolia |
| 178. Child pick-a-back, bhuiamla, gulf leafflower | Phyllanthus amarus |
| 179. Chile, Aji Colorado | Capsicum pendulum |
| 180. Chile, Aji Habanero | Capsicum baccatum |
| 181. Chilian Centaury | Erythraea chilensis |
| 182. Chilly | Capsicum frutescens Capsicum pubescens Capsicum grosum |
| 183. Chilly, Red / Peppers | Capsicum annuum |
| 184. China Fleece Vine | Polygonum aubertii |
| 185. China grass | Boehmeria nivea Boehmeria tenacissima Urtica tenacissima Urtica utilis |
| 186. China rose (shoe flower) / Hibiscus, Chinese | Hibiscus rosa-sinensis |
| 187. Chinaberry tree /Persian lilac | Melia azedarach |
| 188. Chinquapin | Castanopsis chrysophylla |
| 189. Chiretta | Swertia chirata |
| 190. Chironji Tree, almondette, calumpong nut | Buchanania lanzan |
| 191. Chives | Allium schoenoprasum |
| 192. Chives, Chinese | Allium odorum Allium tuberosum |
| 193. Chocolate flower | Berlandiera lyrata |
| 194. Chocolate lily | Fritillaria lanceolata |
| 195. Chocolate-headed Clubrush | Eleocharis quinqueflora |
| 196. Choy Sum (Cantonese) | Brassica parachinensis |
| 197. Christmas Cactus | Hatiora gaertneri Schlumbergera bridgesii |
| 198. Christmas Cowslip | Pulmonaria montana |
| 199. Chrysanthemum | Chrysanthemum indicus, Chrysanthemum roseum, C. cinerariaefolium |
| 200. Chufa | Cyperus esculentus var. sativa |
| 201. Cigar Flower | Cuphea llavea var. miniata 'Firefly' |
| 202. Cinchona | Cinchona calysaya Cinchona officinalis |
| 203. Cineraria | Senecio x hybridus |
| 204. Cinnamon | Cinnamomum culiawan Cinnamomum lignea Cinnamomum loureirii Cinnamomum obtusifolium Cinnamomum pauciflorum Cinnamomum rubrum Cinnamomum sintok Cinnamomum verum Cinnamomum zeylanicum |
| 205. Cinnamon (Japan), Wild | Cinnamomum iners |
| 206. Cinnamon Cassia | Cinnamomum aromaticum |
| 207. Cinnamon, White | Canella alba |
| 208. Citron | Citrus digitata seu chirocarpus Citrus medica var. vulgaris |
| 209. Citronella Grass | Cymbopogon nardus |
| 210. Citron-scented Gum | Eucalyptus citriodora |
| 211. Clary, Wild | Salvia horminoides |
| 212. Clasping twistedstalk | Streptopus amplexifolius |
| 213. Clearing Nuts | Strychnos pseudo |
| 214. Clearweed | Pilea pumila |
| 215. Cleavers | Galium aparine |
| 216. Clematis | Clematis recta |
| 217. Clematis, Golden | Clematis tangutica |
| 218. Climbing Brown Milkweed | Matelea decipiens |
| 219. Climbing Buckwheat | Polygonum convolvulus |
| 220. Climbing Hydrangea | Hydrangea anomala |
| 221. Climbing Lily, Australian | Eustrephus |
| 222. Clinker polypore | Inonotus obligus Poria obliqua |
| 223. Clock Vine | Thunbergia |
| 224. Cloudberry | Rubus chamaemorus |
| 225. Clove | Caryophyllum aromaticum Eugenia caryophyllata |
| 226. Clove Nutmeg | Agathophyllum aromaticum |
| 227. Clover, Crimson | Trifolium incarnatum |
| 228. Clover, Red | Trifolium pratense |
| 229. Clover, Spanish | Desmodium incanum |
| 230. Clover, White | Trifolium repens |
| 231. Cloves | Syzygium aromaticum |
| 232. Club Moss, Common | Lycopodium clavatum |
| 233. Club-moss mountain heathe | Cassiope lycopodioides |
| 234. Clubmoss, American | Diphasiastrum complanatum |
| 235. Cluster Bean | Cyamopsis tetragonoloba |
| 236. Clustered Dock | Rumex conglomeratus |
| 237. Coast Banksia | Banksia integrifolia |
| 238. Coastal Wattle | Acacia sophorae |
| 239. Coat buttons /tridax daisy | Tridax procumbens |
| 240. Coat Flower /Tunic Flower | Tunica saxifraga |
| 241. Coca, Bolivian | Erythroxylum coca |
| 242. Cochineal | Dactylopius coccus |
| 243. Cocillana Bark | Guarea rusbyi |
| 244. Cockle | Vaccaria |
| 245. Cocklebur | Xanthium spinosum |
| 246. Cock's Comb | Templetonia retusa |
| 247. Cockscomb | Celosia argentea var. cristata |
| 248. Cockspur Thorn of EN Amer | Crataegus crus-gallii |
| 249. Coco-grass, purple nut sedge, red nut sedge | Cyperus rotundus |
| 250. Coconut palm | Cocos nucifera |
| 251. Codonopsis | Codonopsis tangshen |
| 252. Coelogyne | Coelogyne mossiae |
| 253. Coffee | Coffea arabica |
| 254. Cohosh, Black | Cimicifuga elata Cimicifuga racemosa |
| 255. Cohosh, Blue | Caulophyllum thalictroides |
| 256. Cohosh, White | Actaea alba |
| 257. Cola | Cola acuminata |
| 258. Colewort | Crambe cordifolia |
| 259. Colli, Chinese | Cordyline terminalis |
| 260. Colocynth | Citrullus colocynthis Cucumis colocynthis |
| 261. Colorado Fir | Abies concolor |
| 262. Coltsfoot | Tussilago farfara |
| 263. Columbine | Aquilegia longissima Aquilegia vulgaris |
| 264. Columbine, Alpine | Aquilegia alpina |
| 265. Columbine, Common American | Aquilegia canadensis |
| 266. Columbine, Dark | Aquilegia atrata |
| 267. Columbine, Queen, Yellow | Aquilegia chrysantha |
| 268. Columbo Weed | Coscinium fenestratum |
| 269. Columbo, American | Frasera carolinensis |
| 270. Colville's Glory | Colvillea racemosa |
| 271. Comb, Indian | Pachycereus pecten-aboriginum |
| 272. Combretum | Combretum sundaicum |
| 273. Comfrey | Symphytum grandiflorum Symphytum tuberosum |
| 274. Comfrey, Common | Symphytum officinale |
| 275. Comfrey, Red | Symphytum rubrum |
| 276. Comfrey, Russian | Symphytum x uplandicum |
| 277. Commelina-Leaf Habenaria | Habenaria commelinifolia |
| 278. Compact harvest lily | Brodiaea congesta |
| 279. Compass Plant | Silphium laciniatum |
| 280. Conchita | Centrosema |
| 281. Condurango | Gonolobus condurango Marsdenia condurango |
| 282. Coneflower, Golden | Rudbeckia fulgida 'Goldsturm' |
| 283. Coneflower, Narrowleaf | Echinacea angustifolia |
| 284. Coneflower, Pale Purple | Echinacea pallida |
| 285. Coneflower, Purple | Echinacea purpurea |
| 286. Coneflower, Tennessee | Echinacea tennesseensis |
| 287. Coneflower, Yellow | Echinacea paradoxa |
| 288. Conehead Thyme | Coridothymus capitatus |
| 289. Congo Root | Psoralea melilotoides |
| 290. Contrayerva | Dorstenia brasiliensis Dorstenia contrayerva Dorstenia drabena |
| 291. Coolgardie Rose | Eucalyptus macrocarpa |
| 292. Coolwort | Tiarella cordifolia |
| 293. Cootamunda Wattle | Acacia baileyana |
| 294. Copaiba | Copaifera langsdorffii |
| 295. Copalchi Bark | Cascarilla esenbeckia febrifuga Croton pseudo-china (Mexico) |
| 296. Copper-Beech | Fagus sylvatica var. purpurea |
| 297. Copperbush | Cladothamnus pyroliflorus |
| 298. Copperleaf, Indian | Acalypha indica |
| 299. Coral Bells | Heuchera sanguinea |
| 300. Coral Bush | Templetonia |
| 301. Coral Tree | Erythrina corallodendrum Erythrina stricta |
| 302. Coral Tree, Bat-wing | Erythrina vespertilio |
| 303. Coral Tree, Cockspur | Erythrina crista-gallii |
| 304. Coral Tree, Indian | Erythrina indica |
| 305. Coral Tree, South Africa | Erythrina lysistemon |
| 306. Coral Vine | Antigonon leptopus |
| 307. Coralberry | Ardisia crenata |
| 308. Coralroot, Spotted | Corallorrhiza maculata |
| 309. Coralroot, Western | Corallorrhiza maculata ssp. mertensiana |
| 310. Cord-grass, Common | Spartina stricta |
| 311. Coriander | Coriandrum sativum |
| 312. Corkwing | Glehnia littoralis |
| 313. Corkwood Tree | Duboisia myoporoides |
| 314. Corn Chamomile | Anthemis arvensis |
| 315. Corn Cockle | Agrostemma githago |
| 316. Corn Marigold | Chrysanthemum segetum |
| 317. Corn Melilot | Melilotus arvensis |
| 318. Corn plant | Dracaena fragrans |
| 319. Corn Salad | Valerianella locusta |
| 320. Corn, Turkey | Dicentra canadensis |
| 321. Cornelian Cherry | Cornus mas |
| 322. Cornflower | Centaurea cyanus |
| 323. Cornu | Cola ballayi |
| 324. Corsican Moss | Fucus helminthocorton |
| 325. Cosmea | Cosmos bipinnatus |
| 326. Costmary | Tanacetum balsamita |
| 327. Costus | Saussurea lappa |
| 328. Coto ? | Palicourea densiflors |
| 329. Cotoneaster | Cotoneaster |
| 330. Cotton | Gossypium vitifolium |
| 331. Cotton Grass | Eriophorum angustifolium |
| 332. Cotton plants | Gossypium herbaceum, G. indicum, G. hirsutum, G. arboretum, G. barbadense, G. sanguineum |
| 333. Cotton Root | Gossypium herbaceum |
| 334. Cottonwood, Black | Populus balsamifera ssp. trichocarpa |
| 335. Couch-grass | Elymus repens |
| 336. Country Beans or sem / Hyacinth Bean | Dolichos lablab |
| 337. Cow Parsley | Anthriscus sylvestris |
| 338. Cow Parsnip | Heracleum lanatum |
| 339. Cowbean American | Cicuta maculata |
| 340. Cowcockle | Vaccaria segetalis |
| 341. Cowhage, Velvet Bean | Mucuna pruriens |
| 342. Cowherd | Saponaria vaccaria |
| 343. Cowslip | Primula veris |
| 344. Cow-Wheat | Melampyrum pratense |
| 345. Crab's Eye, Lucky bean or Coral Bead Vine | Abrus precatorius |
| 346. Cranberry | Oxycoccus microcarpus Oxycoccus palustris Vaccinium oxycoccus Vaccinium macrocarpum (Am.) |
| 347. Cranesbill | Geranium cinereum Geranium dissectum Geranium psilostemon Geranium subcaulescens |
| 348. Cranesbill, Bloody | Geranium sangiuneum |
| 349. Cranesbill, Iberian | Geranium ibericum |
| 350. Cranesbill, Marsh | Geranium palustre |
| 351. Cranesbill, Meadow | Geranium pratense |
| 352. Cranesbill, Spotted | Geranium maculatum |
| 353. Cranesbill, Wood | Geranium sylvaticum |
| 354. Crape jasmine/ Moonbeam/ Carnation of India | Tabernaemontana divaricata |
| 355. Crawley Root | Corallorrhiza odontorhiza |
| 356. Creamy Yarrow | Achillea nobilis |
| 357. Creeping Baby's Breath | Gypsophila repens |
| 358. Creeping Germander | Teucrium canadense |
| 359. Creeping Gloxinia | Asarina erubescens |
| 360. Creeping lily-turf | Liriope spicata |
| 361. Creeping Plume Thistle | Carduus arvensis |
| 362. Creeping snapdragon | Asarina procumbens |
| 363. Creeping Soft-grass | Holcus mollis |
| 364. Creeping Thyme | Thymus praecox |
| 365. Creeping Zinnia | Sanvitalia procumbens |
| 366. Creosote Bush | Larrea |
| 367. Cress, Garden | Lepidium sativum |
| 368. Crested Dog's Tail | Cynosurus cristatus |
| 369. Crested Iris | Iris cristata |
| 370. Cretan Bear's Tail | Celsia arcturus |
| 371. Crimson boronia | Boronia heterophylla |
| 372. Crimson Thyme | Thymus praecox subsp. arcticus |
| 373. Crosswort | Crucianella stylosa Galium cruciatum |
| 374. Crotalaria | Crotalaria striata |
| 375. Croton | Codiaeum variegatum Croton tiglium |
| 376. Croton | Croton sparsiflorus |
| 377. Croton | Croton tiglium |
| 378. Crow Garlic | Allium vineale |
| 379. Crowberry | Empetrum nigrum |
| 380. Crown Imperial Lily | Fritillaria imperialis |
| 381. Crown Vetch | Coronilla varia |
| 382. Crucifixion thorn | Castela emoryi |
| 383. Cuban Oregano | Plectranthus amboinicus |
| 384. Cubebs | Piper cubeba |
| 385. Cucumber | Cucumis utilissimus |
| 386. Cucumber, African | Cucumis metuliferus |
| 387. Cucumber, Chinese | Eopepon aurantiacus Eopepon vitifolius Trichosanthes japonica Trichosanthes kirilowii Trichosanthes palmata Trichosanthes rosthornii |
| 388. Cucumber, Indian | Medeola virginiana |
| 389. Cucumber, Sikkim | Cucumis sativus var. sikkimensis |
| 390. Cucumber, Suyo Long / Cucumber, Oriental | Cucumis sativus |
| 391. Cudbear | Rocella tinctoria |
| 392. Cudweed | Graphalium uliginosum |
| 393. Culver's Root | Veronicastrum virginicum |
| 394. Cumin | Cuminum cyminum |
| 395. Cup & Saucer plant | Holmsckoldia sanguinea |
| 396. Cup Moss | Cladonia pyxidata |
| 397. Cup Plant | Silphium perfoliatum |
| 398. Cup-and-saucer Vine | Cobaea scandens |
| 399. Cupid's bower | Achimenes hybrida |
| 400. Cupid's Dart | Catananche caerulea |
| 401. Curacoa Aloe | Aloe chinensis |
| 402. Curanja | Curanga amara |
| 403. Curare | Strychnos toxifera |
| 404. Curculigo, Common/ Golden Eye-grass | Curculigo orchioides |
| 405. Cure-pire | Cyperus sanguinea-fuscus |
| 406. Curled chervil | Anthriscus cerefolium crispum |
| 407. Curled Cress | Lepidium sativum 'Crispum' |
| 408. Curled Parsley | Petroselinum crispum var. crispum |
| 409. Curled Tansy | Tanacetum vulgare 'Crispum' |
| 410. Currant , Black | Ribes nigrum |
| 411. Currant, Red | Ribes rubrum |
| 412. Currant, Red-flowering | Ribes sanguineum |
| 413. Currant, Sticky | Ribes viscosissimum |
| 414. Currant, Swamp, Red | Ribes triste |
| 415. Currant, Trailing black | Ribes laxiflorum |
| 416. Currant, White | Ribes sativum |
| 417. Curry Leaf Plant | Murraya koenigii |
| 418. Curry Plant | Helichrysum italicum |
| 419. Custard Apple | Annona glabra Annona squamosa Annona tripetala |
| 420. Cutleaf boronia | Boronia denticulata |
| 421. Cycad | Cycas pectinata Cycas siamensis |
| 422. Cycad, Australian | Macrozamia communis |
| 423. Cyclamen | Cyclamen persicum |
| 424. Cyclea | Cyclea fissicalyx |
| 425. Cymbidium orchid | Cymbidium |
| 426. Cynometra | Cynometra beddomei |
| 427. Cypress asparagus fern | Asparagus setaceus |
| 428. Cypress Vine | Quamoclit pennata |
| 429. Cypress, Italian | Cupressus sempervirens |
| 430. Cypress, Mexican | Cupressus lusitanica |
| 431. Cypress, Monterey | Cupressus macrocarpa |
| 432. Cypress, Smooth Arizona | Cupressus glabra |