| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CYOB4 | Cyanea obtusa (Gray) Hbd. | bluntlobe cyanea | Campanulaceae
|
| CYOC4 | Cyanea occultans St. John | Cyanea acuminata | Campanulaceae
|
| CYOV2 | Cyanea ovatisepala F. Wimmer | Cyanea solenocalyx | Campanulaceae
|
| CYPA23 | Cyanea parvifolia (Forbes) Lammers, Givnish & Systma | Waioli Valley rollandia | Campanulaceae
|
| CYPIL | Cyanea pilosa Gray ssp. longipedunculata (Rock) Lammers | hairy cyanea | Campanulaceae
|
| CYPIP | Cyanea pilosa Gray ssp. pilosa | hairy cyanea | Campanulaceae
|
| CYPI4 | Cyanea pilosa Gray | hairy cyanea | Campanulaceae
|
| CYPI5 | Cyanea pinnatifida (Cham.) F. Wimmer | sharktail cyanea | Campanulaceae
|
| CYPL7 | Cyanea platyphylla (Gray) Hbd. | puna cyanea | Campanulaceae
|
| CYPO5 | Cyanea pohaku Lammers | pohaku cyanea | Campanulaceae
|
| CYPR8 | Cyanea procera Hbd. | Molokai cyanea | Campanulaceae
|
| CYPR9 | Cyanea profuga Forbes | Mapulehu Valley cyanea | Campanulaceae
|
| CYPU7 | Cyanea pulchra Rock | Cyanea platyphylla | Campanulaceae
|
| CYPU11 | Cyanea purpurellifolia (Rock) Lammers, Givnish & Systma | Panaluu Mountain rollandia | Campanulaceae
|
| CYPY | Cyanea pycnocarpa (Hbd.) F. Wimmer | manyfruit cyanea | Campanulaceae
|
| CYQUA | Cyanea quercifolia (Hbd.) F. Wimmer var. atropurpurea F. Wimmer | Cyanea stictophylla | Campanulaceae
|
| CYQU | Cyanea quercifolia (Hbd.) F. Wimmer | oakleaf cyanea | Campanulaceae
|
| CYRE8 | Cyanea recta (Wawra) Hbd. | Kealia cyanea | Campanulaceae
|
| CYRE9 | Cyanea regina (Wawra) Rock | Cyanea superba ssp. regina | Campanulaceae
|
| CYRE10 | Cyanea remyi Rock | Remy's cyanea | Campanulaceae
|
| CYRI4 | Cyanea rivularis Rock | Delissea rivularis | Campanulaceae
|
| CYRO6 | Cyanea rockii F. Wimmer | Cyanea recta | Campanulaceae
|
| CYRO7 | Cyanea rollandioides Rock | Cyanea platyphylla | Campanulaceae
|
| CYSCL | Cyanea scabra Hbd. var. longissima Rock | Cyanea longissima | Campanulaceae
|
| CYSCS | Cyanea scabra Hbd. var. sinuata Rock | Cyanea solanacea | Campanulaceae
|
| CYSCV | Cyanea scabra Hbd. var. variabilis Rock p.p. | Cyanea glabra | Campanulaceae
|
| CYSCV | Cyanea scabra Hbd. var. variabilis Rock p.p. | Cyanea longissima | Campanulaceae
|
| CYSC7 | Cyanea scabra Hbd. | harsh cyanea | Campanulaceae
|
| CYSE12 | Cyanea sessilifolia (O. Deg.) Lammers | sessileleaf cyanea | Campanulaceae
|
| CYSH | Cyanea shipmanii Rock | Shipman's cyanea | Campanulaceae
|
| CYSO | Cyanea solanacea Hbd. | popolo | Campanulaceae
|
| CYSOL | Cyanea solenocalyx Hbd. var. latifolia F. Wimmer | Cyanea solenocalyx | Campanulaceae
|
| CYSO2 | Cyanea solenocalyx Hbd. | pua kala | Campanulaceae
|
| CYSPL | Cyanea spathulata (Hbd.) Heller ssp. longipetiolata Lammers | Cyanea kahiliensis | Campanulaceae
|
| CYSP5 | Cyanea spathulata (Hbd.) Heller | spoonleaf cyanea | Campanulaceae
|
| CYST8 | Cyanea st.-johnii (Hosaka) Lammers, Givnish & Systma | St. John's rollandia | Campanulaceae
|
| CYSTI | Cyanea stictophylla Rock var. inermis Rock | Cyanea stictophylla | Campanulaceae
|
| CYST5 | Cyanea stictophylla Rock | Kaiholena cyanea | Campanulaceae
|
| CYSU7 | Cyanea submuricata F. Wimmer | Cyanea tritomantha | Campanulaceae
|
| CYSUR | Cyanea superba (Cham.) Gray ssp. regina (Wawra) Lammers | Mt. Kaala cyanea | Campanulaceae
|
| CYSUS | Cyanea superba (Cham.) Gray ssp. superba | Mt. Kaala cyanea | Campanulaceae
|
| CYSUV | Cyanea superba (Cham.) Gray var. velutina Rock | Cyanea superba ssp. superba | Campanulaceae
|
| CYSU8 | Cyanea superba (Cham.) Gray | Mt. Kaala cyanea | Campanulaceae
|
| CYSYE | Cyanea sylvestris Heller var. eriantha (Skottsberg) F. Wimmer | Cyanea sylvestris | Campanulaceae
|
| CYSY | Cyanea sylvestris Heller | Wahiawa cyanea | Campanulaceae
|
| CYTRL | Cyanea tritomantha Gray var. lydgatei Rock | Cyanea marksii | Campanulaceae
|
| CYTR6 | Cyanea tritomantha Gray | 'aku 'aku | Campanulaceae
|
| CYTRJ | Cyanea truncata (Rock) Rock var. juddii (Forbes) St. John | Cyanea truncata | Campanulaceae
|
| CYTR7 | Cyanea truncata (Rock) Rock | Punaluu cyanea | Campanulaceae
|
| CYUN5 | Cyanea undulata Forbes | leechleaf cyanea | Campanulaceae
|
| CYWA7 | Cyanea wailauensis Rock | Cyanea solenocalyx | Campanulaceae
|
| CYANE | Cyanea Gaud. | cyanea | Campanulaceae
|
| CYAM6 | Cyanococcus amoenus (Ait.) Small | Vaccinium virgatum | Ericaceae
|
| CYAT5 | Cyanococcus atrococcus (Gray) Small | Vaccinium fuscatum | Ericaceae
|
| CYCA16 | Cyanococcus canadensis (Kalm ex A. Rich.) Rydb. | Vaccinium myrtilloides | Ericaceae
|
| CYCO15 | Cyanococcus corymbosus (L.) Rydb. | Vaccinium corymbosum | Ericaceae
|
| CYCU5 | Cyanococcus cuthbertii Small | Vaccinium corymbosum | Ericaceae
|
| CYEL7 | Cyanococcus elliottii (Chapman) Small | Vaccinium elliottii | Ericaceae
|
| CYFU6 | Cyanococcus fuscatus (Ait.) Small | Vaccinium fuscatum | Ericaceae
|
| CYHI7 | Cyanococcus hirsutus (Buckl.) Small | Vaccinium hirsutum | Ericaceae
|
| CYLI11 | Cyanococcus liparis Small | Vaccinium pallidum | Ericaceae
|
| CYMY | Cyanococcus myrsinites (Lam.) Small | Vaccinium myrsinites | Ericaceae
|
| CYPA16 | Cyanococcus pallidus (Ait.) Small | Vaccinium pallidum | Ericaceae
|
| CYSI2 | Cyanococcus simulatus (Small) Small | Vaccinium simulatum | Ericaceae
|
| CYSU10 | Cyanococcus subcordatus Small | Vaccinium pallidum | Ericaceae
|
| CYTA | Cyanococcus tallapusae Coville ex Small | Vaccinium pallidum | Ericaceae
|
| CYTE8 | Cyanococcus tenellus (Ait.) Small | Vaccinium tenellum | Ericaceae
|
| CYVA3 | Cyanococcus vacillans (Kalm ex Torr.) Rydb. | Vaccinium pallidum | Ericaceae
|
| CYVI10 | Cyanococcus virgatus (Ait.) Small | Vaccinium fuscatum | Ericaceae
|
| CYVI10 | Cyanococcus virgatus (Ait.) Small | Vaccinium virgatum | Ericaceae
|
| CYMU7 | Cyanopsis muricata (L.) Dost�l | Morocco knapweed | Asteraceae
|
| CYANO | Cyanopsis Cass. | knapweed | Asteraceae
|
| CYCI4 | Cyanthillium cinereum (L.) H.E. Robins. | little ironweed | Asteraceae
|
| CYANT2 | Cyanthillium Blume | ironweed | Asteraceae
|
| CYAN | Cyathea andina (Karst.) Domin | parrotfeather treefern | Cyatheaceae
|
| CYAQ | Cyathea aquilina (Christ) Domin | Cyathea parvula | Cyatheaceae
|
| CYAR | Cyathea arborea (L.) Sm. | West Indian treefern | Cyatheaceae
|
| CYAR13 | Cyathea armata (Sw.) Domin | creeping treefern | Cyatheaceae
|
| CYAU5 | Cyathea australis (R.Br.) Domin | rough tree fern | Cyatheaceae
|
| CYBO3 | Cyathea borinquena (Maxon) Domin | birdwing treefern | Cyatheaceae
|
| CYBR9 | Cyathea brittoniana Maxon | Cyathea tenera | Cyatheaceae
|
| CYBR7 | Cyathea brooksii Maxon | Alsophila brooksii | Cyatheaceae
|
| CYBR10 | Cyathea bryophila (R. Tryon) Proctor | Alsophila bryophila | Cyatheaceae
|
| CYCO18 | Cyathea cooperi (Hook. ex F. Muell.) Domin | Cooper's cyathea | Cyatheaceae
|
| CYDR2 | Cyathea dryopteroides Maxon | Alsophila amintae | Cyatheaceae
|
| CYES2 | Cyathea escuquensis (Karst.) Domin | Cyathea andina | Cyatheaceae
|
| CYFU | Cyathea furfuracea Baker | Jamaican treefern | Cyatheaceae
|
| CYHO10 | Cyathea horrida (L.) Sm. | Cnemidaria horrida | Cyatheaceae
|
| CYPA7 | Cyathea parvula (Jenman) Domin | small treefern | Cyatheaceae
|
| CYPO6 | Cyathea portoricensis Spreng. ex Kuhn | Alsophila portoricensis | Cyatheaceae
|
| CYPU8 | Cyathea pungens (Willd.) Domin | spiny treefern | Cyatheaceae
|
| CYTE10 | Cyathea tenera (J. Sm. ex Hook.) T. Moore | helecho gigante | Cyatheaceae
|
| CYATH | Cyathea Sm. | treefern | Cyatheaceae
|
| CYPR10 | Cyathula prostrata (L.) Blume | pastureweed | Amaranthaceae
|
| CYATH2 | Cyathula Blume | cyathula | Amaranthaceae
|
| CYGR14 | Cybebe gracilenta (Ach.) Tibell | | Coniocybaceae
|
| CYBEB | Cybebe Tibell | cybebe | Coniocybaceae
|
| CYSI | Cybianthus sintenisii (Urban) Forero | Puerto Rico ridgerunner | Myrsinaceae
|
| CYBIA | Cybianthus Mart. | cybianthus | Myrsinaceae
|
| CYDO4 | Cybistax donnell-smithii (Rose) Seib. | Tabebuia donnell-smithii | Bignoniaceae
|
| CYCI3 | Cycas circinalis L. | queen sago | Cycadaceae
|