| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| IVBA | Ivesia baileyi S. Wats. | Bailey's ivesia | Rosaceae
|
| IVCA | Ivesia callida (Hall) Rydb. | Tahquitz mousetail | Rosaceae
|
| IVCA2 | Ivesia campestris (M.E. Jones) Rydb. | field mousetail | Rosaceae
|
| IVCR | Ivesia cryptocaulis (Clokey) Keck | Charleston Peak mousetail | Rosaceae
|
| IVER | Ivesia eremica (Coville) Rydb. | Ivesia kingii | Rosaceae
|
| IVGO | Ivesia gordonii (Hook.) Torr. & Gray | Gordon's ivesia | Rosaceae
|
| IVJA | Ivesia jaegeri Munz & Johnston | Jaeger's mousetail | Rosaceae
|
| IVKIE | Ivesia kingii S. Wats. var. eremica (Coville) Ertter | Ivesia kingii | Rosaceae
|
| IVKI | Ivesia kingii S. Wats. | King's mousetail | Rosaceae
|
| IVLE | Ivesia lemmonii S. Wats. | Potentilla crinita var. lemmonii | Rosaceae
|
| IVLO | Ivesia longibracteata Ertter | longbract mousetail | Rosaceae
|
| IVLYL | Ivesia lycopodioides Gray ssp. lycopodioides | clubmoss mousetail | Rosaceae
|
| IVLYM | Ivesia lycopodioides Gray ssp. megalopetala (Rydb.) Keck | clubmoss mousetail | Rosaceae
|
| IVLYS | Ivesia lycopodioides Gray ssp. scandularis (Rydb.) Keck | clubmoss mousetail | Rosaceae
|
| IVLYT | Ivesia lycopodioides Gray ssp. typica Keck | Ivesia lycopodioides ssp. lycopodioides | Rosaceae
|
| IVLY | Ivesia lycopodioides Gray | clubmoss mousetail | Rosaceae
|
| IVMU | Ivesia muirii Gray | granite mousetail | Rosaceae
|
| IVMU2 | Ivesia multifoliolata (Torr.) Keck | manyleaf mousetail | Rosaceae
|
| IVPA | Ivesia paniculata T.W. & J.P. Nelson | Ash Creek mousetail | Rosaceae
|
| IVPA2 | Ivesia patellifera (J.T. Howell) Ertter | Kingston Mountain mousetail | Rosaceae
|
| IVPI | Ivesia pickeringii Torr. ex Gray | silky mousetail | Rosaceae
|
| IVPI2 | Ivesia pityocharis Ertter | Pine Nut Mountain mousetail | Rosaceae
|
| IVPUC | Ivesia purpurascens (S. Wats.) Keck ssp. congdonis (Rydb.) Keck | Horkeliella congdonis | Rosaceae
|
| IVPU | Ivesia purpurascens (S. Wats.) Keck | Horkeliella purpurascens | Rosaceae
|
| IVPY | Ivesia pygmaea Gray | dwarf mousetail | Rosaceae
|
| IVRHR | Ivesia rhypara Ertter & Reveal var. rhypara | grimy mousetail | Rosaceae
|
| IVRHS | Ivesia rhypara Ertter & Reveal var. shellyi Ertter | Shelly's mousetail | Rosaceae
|
| IVRH | Ivesia rhypara Ertter & Reveal | grimy mousetail | Rosaceae
|
| IVSA | Ivesia sabulosa (M.E. Jones) Keck | Intermountain mousetail | Rosaceae
|
| IVSA2 | Ivesia santolinoides Gray | Sierra mousetail | Rosaceae
|
| IVSA3 | Ivesia saxosa (J.G. & S.A. Lemmon ex Greene) Ertter | rock mousetail | Rosaceae
|
| IVSE | Ivesia sericoleuca (Rydb.) Rydb. | Plumas mousetail | Rosaceae
|
| IVSE2 | Ivesia setosa S. Wats. | Ivesia baileyi var. setosa | Rosaceae
|
| IVSHO | Ivesia shockleyi S. Wats. var. ostleri Ertter | Ostler's mousetail | Rosaceae
|
| IVSHS | Ivesia shockleyi S. Wats. var. shockleyi | sky mousetail | Rosaceae
|
| IVSH | Ivesia shockleyi S. Wats. | sky mousetail | Rosaceae
|
| IVTW | Ivesia tweedyi Rydb. | Tweedy's ivesia | Rosaceae
|
| IVUN | Ivesia unguiculata Gray | Yosemite mousetail | Rosaceae
|
| IVUT | Ivesia utahensis S. Wats. | Utah mousetail | Rosaceae
|
| IVWE | Ivesia webberi Gray | wire mousetail | Rosaceae
|
| IVESI | Ivesia Torr. & Gray | mousetail | Rosaceae
|
| IWLE | Iwatsukiella leucotricha (Mitt.) Buck & Crum | iwatsukiella moss | Pterigynandraceae
|
| IWATS | Iwatsukiella Buck & Crum | iwatsukiella moss | Pterigynandraceae
|
| IXST | Ixeris stolonifera Gray | creeping lettuce | Asteraceae
|
| IXERI | Ixeris (Cass.) Cass. | ixeris | Asteraceae
|
| IXAC2 | Ixia acuta Bartr., non Roemer & J.A. Schultes | Nemastylis geminiflora | Iridaceae
|
| IXCA | Ixia campanulata Houtt. | belllflower African cornlily | Iridaceae
|
| IXCO2 | Ixia coelestina Bartr. | Calydorea coelestina | Iridaceae
|
| IXMA | Ixia maculata L. | spotted African cornlily | Iridaceae
|
| IXSP2 | Ixia speciosa Andrews | Ixia campanulata | Iridaceae
|
| IXIA | Ixia L. | African cornlily | Iridaceae
|
| IXWR | Ixidium wrightii (Griseb.) Eichl. | Antidaphne wrightii | Eremolepidaceae
|
| IXUN | Ixophorus unisetus (J. Presl) Schlechter | Mexican grass | Poaceae
|
| IXOPH | Ixophorus Schlechter | Central America grass | Poaceae
|
| IXAC | Ixora acuminata Roxb. | bola de nieve | Rubiaceae
|
| IXCO | Ixora coccinea L. | scarlet jungleflame | Rubiaceae
|
| IXFE | Ixora ferrea (Jacq.) Benth. | palo de hierro | Rubiaceae
|
| IXMA2 | Ixora macrothyrsa Teijsm. & Binn. | | Rubiaceae
|
| IXOC | Ixora occidentalis L. | Faramea occidentalis | Rubiaceae
|
| IXPA2 | Ixora parviflora Vahl | Ixora pavetta | Rubiaceae
|
| IXPA | Ixora pavetta Andrews | torch tree | Rubiaceae
|
| IXTH | Ixora thwaitesii Hook. f. | white jungleflame | Rubiaceae
|
| IXORA | Ixora L. | ixora | Rubiaceae
|
| JAIN2 | Jaborosa integrifolia Lam. | springblossom | Solanaceae
|
| JABOR | Jaborosa Juss. | jaborosa | Solanaceae
|
| JAAC | Jacaranda acutifolia auct. non Humb. & Bonpl. | Jacaranda mimosifolia | Bignoniaceae
|
| JAMI | Jacaranda mimosifolia D. Don | black poui | Bignoniaceae
|
| JACAR | Jacaranda Juss. | jacaranda | Bignoniaceae
|
| JAPR3 | Jacea pratensis Lam. | Centaurea eriophora | Asteraceae
|
| JATE3 | Jacksonia tenuifolia (Torr. & Gray) Greene | Polanisia tenuifolia | Capparaceae
|
| JACA6 | Jacobinia candicans (Nees) Benth. & Hook. f. | Justicia candicans | Acanthaceae
|
| JACA9 | Jacobinia carnea (Lindl.) G. Nicholson | Justicia carnea | Acanthaceae
|
| JAOV | Jacobinia ovata Gray | Justicia candicans | Acanthaceae
|
| JAAG | Jacquemontia agrestis (Mart. ex Choisy) Meisn. | midnightblue clustervine | Convolvulaceae
|
| JACA5 | Jacquemontia canescens (Kunth) Benth. | Jacquemontia pentanthos | Convolvulaceae
|
| JACA7 | Jacquemontia cayensis Britt. | sandyplain clustervine | Convolvulaceae
|
| JACU3 | Jacquemontia cumanensis (Kunth) Kuntze | thicket clustervine | Convolvulaceae
|
| JACU4 | Jacquemontia curtissii Peter ex Small | pineland clustervine | Convolvulaceae
|
| JAHA | Jacquemontia havanensis (Jacq.) Urban | Havana clustervine | Convolvulaceae
|
| JAJA | Jacquemontia jamaicensis (Jacq.) Hallier f. ex Solered. | Jacquemontia havanensis | Convolvulaceae
|
| JANO | Jacquemontia nodiflora (Desv.) G. Don | Convolvulus nodiflorus | Convolvulaceae
|
| JAOB | Jacquemontia obcordata (Millsp.) House | Jacquemontia ovalifolia ssp. obcordata | Convolvulaceae
|
| JAOVO | Jacquemontia ovalifolia (Vahl ex West) Hallier f. ssp. obcordata (Millsp.) Robertson | oval-leaf clustervine | Convolvulaceae
|
| JAOVS | Jacquemontia ovalifolia (Vahl ex West) Hallier f. ssp. sandwicensis (Gray) Robertson | oval-leaf clustervine | Convolvulaceae
|
| JAOVT | Jacquemontia ovalifolia (Vahl ex West) Hallier f. var. tomentosa Choisy | Jacquemontia ovalifolia ssp. sandwicensis | Convolvulaceae
|
| JAOV2 | Jacquemontia ovalifolia (Vahl ex West) Hallier f. | oval-leaf clustervine | Convolvulaceae
|
| JAPA | Jacquemontia palmeri S. Wats. | Jacquemontia agrestis | Convolvulaceae
|
| JAPE | Jacquemontia pentanthos (Jacq.) G. Don | skyblue clustervine | Convolvulaceae
|
| JAPR | Jacquemontia pringlei Gray | Pringle's clustervine | Convolvulaceae
|
| JARE | Jacquemontia reclinata House | beach clustervine | Convolvulaceae
|
| JASAL | Jacquemontia sandwicensis Gray var. laevis St. John | Jacquemontia ovalifolia ssp. sandwicensis | Convolvulaceae
|
| JASAT | Jacquemontia sandwicensis Gray var. tomentosa (Choisy) Hbd. | Jacquemontia ovalifolia ssp. sandwicensis | Convolvulaceae
|
| JASA2 | Jacquemontia sandwicensis Gray | Jacquemontia ovalifolia ssp. sandwicensis | Convolvulaceae
|
| JASO | Jacquemontia solanifolia (L.) Hallier | cambustera de costa | Convolvulaceae
|
| JASU | Jacquemontia subsalina Britt. | Jacquemontia ovalifolia ssp. obcordata | Convolvulaceae
|
| JATA | Jacquemontia tamnifolia (L.) Griseb. | hairy clustervine | Convolvulaceae
|
| JATRA | Jacquemontia tridentata L. ssp. angustifolia (Jacq.) van Ooststr. | Xenostegia tridentata | Convolvulaceae
|
| JAVE | Jacquemontia verticillata (L.) Urban | whorled clustervine | Convolvulaceae
|
| JACQU | Jacquemontia Choisy | clustervine | Convolvulaceae
|
| JAAR | Jacquinia arborea Vahl | Jacquinia armillaris | Theophrastaceae
|
| JAAR2 | Jacquinia armillaris Jacq. | braceletwood | Theophrastaceae
|