| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CRAF | Cryptantha affinis (Gray) Greene | quill cryptantha | Boraginaceae
|
| CRAL | Cryptantha albida (Kunth) I.M. Johnston | New Mexico cryptantha | Boraginaceae
|
| CRAL9 | Cryptantha alpicola Cronq. | Cryptantha humilis | Boraginaceae
|
| CRAM3 | Cryptantha ambigua (Gray) Greene | basin cryptantha | Boraginaceae
|
| CRAN4 | Cryptantha angustifolia (Torr.) Greene | Panamint cryptantha | Boraginaceae
|
| CRAP2 | Cryptantha aperta (Eastw.) Payson | Grand Junction cryptantha | Boraginaceae
|
| CRAT2 | Cryptantha atwoodii Higgins | Atwood's cryptantha | Boraginaceae
|
| CRBA4 | Cryptantha bakeri (Greene) Payson | Baker's cryptantha | Boraginaceae
|
| CRBAF | Cryptantha barbigera (Gray) Greene var. fergusoniae J.F. Macbr. | Cryptantha intermedia | Boraginaceae
|
| CRBA5 | Cryptantha barbigera (Gray) Greene | bearded cryptantha | Boraginaceae
|
| CRBA6 | Cryptantha barnebyi I.M. Johnston | oilshale cryptantha | Boraginaceae
|
| CRBR11 | Cryptantha bradburiana Payson | Cryptantha celosioides | Boraginaceae
|
| CRBR7 | Cryptantha breviflora (Osterhout) Payson | Uinta basin cryptantha | Boraginaceae
|
| CRCA7 | Cryptantha caespitosa (A. Nels.) Payson | tufted cryptantha | Boraginaceae
|
| CRCA14 | Cryptantha calycosa (Gray) Rydb. | Cryptantha torreyana | Boraginaceae
|
| CRCA8 | Cryptantha cana (A. Nels.) Payson | mountain cryptantha | Boraginaceae
|
| CRCA13 | Cryptantha capitata (Eastw.) I.M. Johnston | capitate cryptantha | Boraginaceae
|
| CRCE | Cryptantha celosioides (Eastw.) Payson | buttecandle | Boraginaceae
|
| CRCIA | Cryptantha cinerea (Greene) Cronq. var. abortiva (Greene) Cronq. | James' cryptantha | Boraginaceae
|
| CRCIA2 | Cryptantha cinerea (Greene) Cronq. var. arenicola Higgins & Welsh | James' cryptantha | Boraginaceae
|
| CRCIC | Cryptantha cinerea (Greene) Cronq. var. cinerea | James' cryptantha | Boraginaceae
|
| CRCIJ | Cryptantha cinerea (Greene) Cronq. var. jamesii Cronq. | James' cryptantha | Boraginaceae
|
| CRCIL | Cryptantha cinerea (Greene) Cronq. var. laxa (J.F. Macbr.) Higgins | James' cryptantha | Boraginaceae
|
| CRCIP | Cryptantha cinerea (Greene) Cronq. var. pustulosa (Rydb.) Higgins | James' cryptantha | Boraginaceae
|
| CRCI3 | Cryptantha cinerea (Greene) Cronq. | James' cryptantha | Boraginaceae
|
| CRCIR2 | Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston ssp. rosulata (J.T. Howell) Mathew & Raven | Cryptantha circumscissa var. rosulata | Boraginaceae
|
| CRCIC2 | Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston var. circumscissa | cushion cryptantha | Boraginaceae
|
| CRCIG | Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston var. genuina I.M. Johnston | Cryptantha circumscissa var. circumscissa | Boraginaceae
|
| CRCIH | Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston var. hispida (J.F. Macbr.) I.M. Johnston | cushion cryptantha | Boraginaceae
|
| CRCIR | Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston var. rosulata J.T. Howell | cushion cryptantha | Boraginaceae
|
| CRCI2 | Cryptantha circumscissa (Hook. & Arn.) I.M. Johnston | cushion cryptantha | Boraginaceae
|
| CRCLC | Cryptantha clevelandii Greene var. clevelandii | Cleveland's cryptantha | Boraginaceae
|
| CRCLD | Cryptantha clevelandii Greene var. dissita (I.M. Johnston) Jepson & Hoover | Cleveland's cryptantha | Boraginaceae
|
| CRCLF | Cryptantha clevelandii Greene var. florosa I.M. Johnston | Cleveland's cryptantha | Boraginaceae
|
| CRCL | Cryptantha clevelandii Greene | Cleveland's cryptantha | Boraginaceae
|
| CRCL2 | Cryptantha clokeyi I.M. Johnston | Clokey's cryptantha | Boraginaceae
|
| CRCO17 | Cryptantha compacta Higgins | compact cryptantha | Boraginaceae
|
| CRCO12 | Cryptantha confertiflora (Greene) Payson | basin yellow cryptantha | Boraginaceae
|
| CRCOR | Cryptantha corollata (I.M. Johnston) I.M. Johnston ssp. rattanii (Greene) Abrams | Cryptantha rattanii | Boraginaceae
|
| CRCO33 | Cryptantha corollata (I.M. Johnston) I.M. Johnston | coast range cryptantha | Boraginaceae
|
| CRCO14 | Cryptantha coryi I.M. Johnston | Cryptantha palmeri | Boraginaceae
|
| CRCO15 | Cryptantha costata Brandeg. | ribbed cryptantha | Boraginaceae
|
| CRCR7 | Cryptantha crassipes I.M. Johnston | Terlingua Creek cryptantha | Boraginaceae
|
| CRCRC | Cryptantha crassisepala (Torr. & Gray) Greene var. crassisepala | thicksepal cryptantha | Boraginaceae
|
| CRCRE | Cryptantha crassisepala (Torr. & Gray) Greene var. elachantha I.M. Johnston | thicksepal cryptantha | Boraginaceae
|
| CRCR3 | Cryptantha crassisepala (Torr. & Gray) Greene | thicksepal cryptantha | Boraginaceae
|
| CRCR8 | Cryptantha creutzfeldtii Welsh | Creutzfeldt's cryptantha | Boraginaceae
|
| CRCR4 | Cryptantha crinita Greene | Sacramento cryptantha | Boraginaceae
|
| CRCR5 | Cryptantha crymophila I.M. Johnston | subalpine cryptantha | Boraginaceae
|
| CRDE | Cryptantha decipiens (M.E. Jones) Heller | gravelbar cryptantha | Boraginaceae
|
| CRDU | Cryptantha dumetorum (Greene ex Gray) Greene | bushloving cryptantha | Boraginaceae
|
| CREA | Cryptantha eastwoodiae St. John | Cryptantha torreyana | Boraginaceae
|
| CREC | Cryptantha echinella Greene | prickly cryptantha | Boraginaceae
|
| CREC2 | Cryptantha echinoides (M.E. Jones) Payson | Cryptantha fulvocanescens var. fulvocanescens | Boraginaceae
|
| CREL4 | Cryptantha elata (Eastw.) Payson | cliffdweller's cryptantha | Boraginaceae
|
| CREX | Cryptantha excavata Brandeg. | deepscar cryptantha | Boraginaceae
|
| CRFE3 | Cryptantha fendleri (Gray) Greene | sanddune cryptantha | Boraginaceae
|
| CRFL4 | Cryptantha flaccida (Dougl. ex Lehm.) Greene | weakstem cryptantha | Boraginaceae
|
| CRFL5 | Cryptantha flava (A. Nels.) Payson | Brenda's yellow cryptantha | Boraginaceae
|
| CRFL6 | Cryptantha flavoculata (A. Nels.) Payson | roughseed cryptantha | Boraginaceae
|
| CRFL12 | Cryptantha flexulosa (A. Nels.) A. Nels. | Cryptantha torreyana | Boraginaceae
|
| CRFR2 | Cryptantha fragilis M.E. Peck | Cryptantha intermedia | Boraginaceae
|
| CRFUE | Cryptantha fulvocanescens (S. Wats.) Payson var. echinoides (M.E. Jones) Higgins | Cryptantha fulvocanescens var. fulvocanescens | Boraginaceae
|
| CRFUF | Cryptantha fulvocanescens (S. Wats.) Payson var. fulvocanescens | tawny cryptantha | Boraginaceae
|
| CRFUN | Cryptantha fulvocanescens (S. Wats.) Payson var. nitida (Greene) Sivinski | tawny cryptantha | Boraginaceae
|
| CRFU | Cryptantha fulvocanescens (S. Wats.) Payson | tawny cryptantha | Boraginaceae
|
| CRGA2 | Cryptantha ganderi I.M. Johnston | Gander's cryptantha | Boraginaceae
|
| CRGL3 | Cryptantha glomeriflora Greene | Truckee cryptantha | Boraginaceae
|
| CRGR3 | Cryptantha gracilis Osterhout | narrowstem cryptantha | Boraginaceae
|
| CRGR4 | Cryptantha grahamii I.M. Johnston | fragrant cryptantha | Boraginaceae
|
| CRGR7 | Cryptantha grandiflora Rydb. | Cryptantha intermedia | Boraginaceae
|
| CRHE2 | Cryptantha hendersonii (A. Nels.) Piper ex J.C. Nels. | Cryptantha intermedia | Boraginaceae
|
| CRHI2 | Cryptantha hispidissima Greene | Cryptantha clevelandii var. florosa | Boraginaceae
|
| CRHI | Cryptantha hispidula Greene ex Brand | Napa cryptantha | Boraginaceae
|
| CRHO2 | Cryptantha hoffmannii I.M. Johnston | Hoffmann's cryptantha | Boraginaceae
|
| CRHO3 | Cryptantha holoptera (Gray) J.F. Macbr. | winged cryptantha | Boraginaceae
|
| CRHO4 | Cryptantha hooveri I.M. Johnston | Hoover's cryptantha | Boraginaceae
|
| CRHUC | Cryptantha humilis (Gray) Payson var. commixta (J.F. Macbr.) Higgins | Cryptantha humilis | Boraginaceae
|
| CRHUN | Cryptantha humilis (Gray) Payson var. nana (Eastw.) Higgins | Cryptantha humilis | Boraginaceae
|
| CRHUO | Cryptantha humilis (Gray) Payson var. ovina (Payson) Higgins | Cryptantha humilis | Boraginaceae
|
| CRHUS | Cryptantha humilis (Gray) Payson var. shantzii (Tidestrom) Higgins | Cryptantha humilis | Boraginaceae
|
| CRHU2 | Cryptantha humilis (Gray) Payson | roundspike cryptantha | Boraginaceae
|
| CRHY | Cryptantha hypsophila I.M. Johnston | Cryptantha sobolifera | Boraginaceae
|
| CRIN6 | Cryptantha inaequata I.M. Johnston | Cryptantha holoptera | Boraginaceae
|
| CRIN7 | Cryptantha incana Greene | Tulare cryptantha | Boraginaceae
|
| CRIN15 | Cryptantha insolita (J.F. Macbr.) Payson | Las Vegas cryptantha | Boraginaceae
|
| CRING | Cryptantha intermedia (Gray) Greene var. grandiflora (Rydb.) Cronq. | Cryptantha intermedia | Boraginaceae
|
| CRIN8 | Cryptantha intermedia (Gray) Greene | Clearwater cryptantha | Boraginaceae
|
| CRIN9 | Cryptantha interrupta (Greene) Payson | Elko cryptantha | Boraginaceae
|
| CRJAA | Cryptantha jamesii (Torr.) Payson var. abortiva (Greene) Payson | Cryptantha cinerea var. abortiva | Boraginaceae
|
| CRJAC | Cryptantha jamesii (Torr.) Payson var. cinerea (Greene) Payson | Cryptantha cinerea var. cinerea | Boraginaceae
|
| CRJAD | Cryptantha jamesii (Torr.) Payson var. disticha (Eastw.) Payson | Cryptantha cinerea var. jamesii | Boraginaceae
|
| CRJAL | Cryptantha jamesii (Torr.) Payson var. laxa (J.F. Macbr.) Payson | Cryptantha cinerea var. laxa | Boraginaceae
|
| CRJAM | Cryptantha jamesii (Torr.) Payson var. multicaulis (Torr.) Payson | Cryptantha cinerea var. cinerea | Boraginaceae
|
| CRJAP | Cryptantha jamesii (Torr.) Payson var. pustulosa (Rydb.) Harrington | Cryptantha cinerea var. pustulosa | Boraginaceae
|
| CRJAS | Cryptantha jamesii (Torr.) Payson var. setosa (M.E. Jones) I.M. Johnston ex Tidestrom | Cryptantha cinerea var. cinerea | Boraginaceae
|
| CRJAT | Cryptantha jamesii (Torr.) Payson var. typica Payson | Cryptantha cinerea var. jamesii | Boraginaceae
|
| CRJA2 | Cryptantha jamesii (Torr.) Payson | Cryptantha cinerea var. jamesii | Boraginaceae
|
| CRJO | Cryptantha johnstonii Higgins | Johnston's cryptantha | Boraginaceae
|
| CRJO2 | Cryptantha jonesiana (Payson) Payson | San Rafael cryptantha | Boraginaceae
|
| CRKE | Cryptantha kelseyana Greene | Kelsey's cryptantha | Boraginaceae
|