| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LOFA | Lomatium farinosum (Hook.) Coult. & Rose | northern biscuitroot | Apiaceae
|
| LOFOD | Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. daucifolium (Torr. & Gray) Theobald | desert biscuitroot | Apiaceae
|
| LOFOF | Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. fimbriatum Theobald | desert biscuitroot | Apiaceae
|
| LOFOF2 | Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. foeniculaceum | desert biscuitroot | Apiaceae
|
| LOFOI | Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. inyoense (Mathias & Constance ex Munz & Roos) Theobald | Inyo biscuitroot | Apiaceae
|
| LOFOM | Lomatium foeniculaceum (Nutt.) Coult. & Rose ssp. macdougalii (Coult. & Rose) Theobald | Macdougal's biscuitroot | Apiaceae
|
| LOFOD2 | Lomatium foeniculaceum (Nutt.) Coult. & Rose var. daucifolium (Torr. & Gray) Cronq. | Lomatium foeniculaceum ssp. daucifolium | Apiaceae
|
| LOFOF3 | Lomatium foeniculaceum (Nutt.) Coult. & Rose var. fimbriatum (Theobald) Boivin | Lomatium foeniculaceum ssp. fimbriatum | Apiaceae
|
| LOFOI2 | Lomatium foeniculaceum (Nutt.) Coult. & Rose var. inyoense (Mathias & Constance ex Munz & Roos) Boivin | Lomatium foeniculaceum ssp. inyoense | Apiaceae
|
| LOFOM2 | Lomatium foeniculaceum (Nutt.) Coult. & Rose var. macdougalii (Coult. & Rose) Cronq. | Lomatium foeniculaceum ssp. macdougalii | Apiaceae
|
| LOFO | Lomatium foeniculaceum (Nutt.) Coult. & Rose | desert biscuitroot | Apiaceae
|
| LOFR2 | Lomatium frenchii Mathias & Constance | Lomatium watsonii | Apiaceae
|
| LOGE2 | Lomatium geyeri (S. Wats.) Coult. & Rose | Geyer's biscuitroot | Apiaceae
|
| LOGO | Lomatium gormanii (T.J. Howell) Coult. & Rose | Gorman's biscuitroot | Apiaceae
|
| LOGRA | Lomatium graveolens (S. Wats.) Dorn & Hartman var. alpinum (S. Wats.) Dorn & Hartman | alpine biscuitroot | Apiaceae
|
| LOGRC | Lomatium graveolens (S. Wats.) Dorn & Hartman var. clarkii Welsh | Lomatium graveolens var. alpinum | Apiaceae
|
| LOGRG | Lomatium graveolens (S. Wats.) Dorn & Hartman var. graveolens | king desertparsley | Apiaceae
|
| LOGR6 | Lomatium graveolens (S. Wats.) Dorn & Hartman | king desertparsley | Apiaceae
|
| LOGRD | Lomatium grayi (Coult. & Rose) Coult. & Rose var. depauperatum (M.E. Jones) Mathias | Gray's biscuitroot | Apiaceae
|
| LOGRG2 | Lomatium grayi (Coult. & Rose) Coult. & Rose var. grayi | Gray's biscuitroot | Apiaceae
|
| LOGR | Lomatium grayi (Coult. & Rose) Coult. & Rose | Gray's biscuitroot | Apiaceae
|
| LOGR2 | Lomatium greenmanii Mathias | Greenman's biscuitroot | Apiaceae
|
| LOHA | Lomatium hallii (S. Wats.) Coult. & Rose | Hall's biscuitroot | Apiaceae
|
| LOHA5 | Lomatium hambleniae Mathias & Constance | Lomatium farinosum var. hambleniae | Apiaceae
|
| LOHE2 | Lomatium hendersonii (Coult. & Rose) Coult. & Rose | Henderson's biscuitroot | Apiaceae
|
| LOHO3 | Lomatium hooveri (Mathias & Constance) Constance & Ertter | Hoover's biscuitroot | Apiaceae
|
| LOHO | Lomatium howellii (S. Wats.) Jepson | Howell's biscuitroot | Apiaceae
|
| LOHU3 | Lomatium humile (Coult. & Rose) Hoover ex Mathias & Constance | Lomatium caruifolium var. denticulatum | Apiaceae
|
| LOID | Lomatium idahoense Mathias & Constance | Idaho biscuitroot | Apiaceae
|
| LOIN2 | Lomatium insulare (Eastw.) Munz | San Nicholas biscuitroot | Apiaceae
|
| LOIN7 | Lomatium inyoense Mathias & Constance ex Munz & Roos | Lomatium foeniculaceum ssp. inyoense | Apiaceae
|
| LOJU3 | Lomatium junceum Barneby & N. Holmgren | rush biscuitroot | Apiaceae
|
| LOJU | Lomatium juniperinum (M.E. Jones) Coult. & Rose | juniper biscuitroot | Apiaceae
|
| LOKIA | Lomatium kingii (S. Wats.) Cronq. var. alpinum (S. Wats.) Cronq. | Lomatium graveolens var. alpinum | Apiaceae
|
| LOKI | Lomatium kingii (S. Wats.) Cronq. | Lomatium graveolens var. graveolens | Apiaceae
|
| LOLA3 | Lomatium laevigatum (Nutt.) Coult. & Rose | Slickrock biscuitroot | Apiaceae
|
| LOLA4 | Lomatium latilobum (Rydb.) Mathias | Canyonlands biscuitroot | Apiaceae
|
| LOLE2 | Lomatium leptocarpum (Torr. & Gray) Coult. & Rose | Lomatium bicolor var. leptocarpum | Apiaceae
|
| LOLU | Lomatium lucidum (Nutt. ex Torr. & Gray) Jepson | shiny biscuitroot | Apiaceae
|
| LOMA9 | Lomatium macdougalii Coult. & Rose | Lomatium foeniculaceum ssp. macdougalii | Apiaceae
|
| LOMAA | Lomatium macrocarpum (Nutt. ex Torr. & Gray) Coult. & Rose var. artemisiarum Piper | Lomatium macrocarpum | Apiaceae
|
| LOMAE | Lomatium macrocarpum (Nutt. ex Torr. & Gray) Coult. & Rose var. ellipticum (Torr. & Gray) Jepson | Lomatium macrocarpum | Apiaceae
|
| LOMA3 | Lomatium macrocarpum (Nutt. ex Torr. & Gray) Coult. & Rose | bigseed biscuitroot | Apiaceae
|
| LOMAM | Lomatium marginatum (Benth.) Coult. & Rose var. marginatum | butte desertparsley | Apiaceae
|
| LOMAP | Lomatium marginatum (Benth.) Coult. & Rose var. purpureum Jepson | butte desertparsley | Apiaceae
|
| LOMA4 | Lomatium marginatum (Benth.) Coult. & Rose | butte desertparsley | Apiaceae
|
| LOMAA2 | Lomatium martindalei (Coult. & Rose) Coult. & Rose var. angustatum (Coult. & Rose) Coult. & Rose | Lomatium martindalei | Apiaceae
|
| LOMAF | Lomatium martindalei (Coult. & Rose) Coult. & Rose var. flavum (G.N. Jones) Cronq. | Lomatium martindalei | Apiaceae
|
| LOMA5 | Lomatium martindalei (Coult. & Rose) Coult. & Rose | cascade desertparsley | Apiaceae
|
| LOME2 | Lomatium megarrhizum (A. Nels.) Mathias | Lomatium nuttallii | Apiaceae
|
| LOMI2 | Lomatium minimum (Mathias) Mathias | little desertparsley | Apiaceae
|
| LOMI3 | Lomatium minus (Rose ex T.J. Howell) Mathias & Constance | Day Valley desertparsley | Apiaceae
|
| LOMOL | Lomatium mohavense (Coult. & Rose) Coult. & Rose ssp. longilobum Theobald | Mojave desertparsley | Apiaceae
|
| LOMOM | Lomatium mohavense (Coult. & Rose) Coult. & Rose ssp. mohavense | Mojave desertparsley | Apiaceae
|
| LOMO | Lomatium mohavense (Coult. & Rose) Coult. & Rose | Mojave desertparsley | Apiaceae
|
| LOMO4 | Lomatium montanum Coult. & Rose | Lomatium cous | Apiaceae
|
| LONE6 | Lomatium nelsonianum J.F. Macbr. | Lomatium hallii | Apiaceae
|
| LONEN | Lomatium nevadense (S. Wats.) Coult. & Rose var. nevadense | Nevada biscuitroot | Apiaceae
|
| LONEP | Lomatium nevadense (S. Wats.) Coult. & Rose var. parishii (Coult. & Rose) Jepson | Parish's biscuitroot | Apiaceae
|
| LONEP2 | Lomatium nevadense (S. Wats.) Coult. & Rose var. pseudorientale (M.E. Jones) Munz | Lomatium nevadense var. parishii | Apiaceae
|
| LONE | Lomatium nevadense (S. Wats.) Coult. & Rose | Nevada biscuitroot | Apiaceae
|
| LONU2 | Lomatium nudicaule (Pursh) Coult. & Rose | barestem biscuitroot | Apiaceae
|
| LONUA | Lomatium nuttallii (Gray) J.F. Macbr. var. alpinum (S. Wats.) Mathias | Lomatium graveolens var. alpinum | Apiaceae
|
| LONU3 | Lomatium nuttallii (Gray) J.F. Macbr. | Nuttall's biscuitroot | Apiaceae
|
| LOOB3 | Lomatium observatorium Constance & Ertter | | Apiaceae
|
| LOOR3 | Lomatium oreganum (Coult. & Rose) Coult. & Rose | Blue Mountain biscuitroot | Apiaceae
|
| LOOR | Lomatium orientale Coult. & Rose | Northern Idaho biscuitroot | Apiaceae
|
| LOOR5 | Lomatium orogenioides (Coult. & Rose) Mathias | Tauschia tenuissima | Apiaceae
|
| LOPA5 | Lomatium packardiae Cronq. | Packard's desertparsley | Apiaceae
|
| LOPA | Lomatium parryi (S. Wats.) J.F. Macbr. | Utah desertparsley | Apiaceae
|
| LOPAP | Lomatium parvifolium (Hook. & Arn.) Jepson var. pallidum (Coult. & Rose) Jepson | Lomatium parvifolium | Apiaceae
|
| LOPA2 | Lomatium parvifolium (Hook. & Arn.) Jepson | coastal biscuitroot | Apiaceae
|
| LOPE3 | Lomatium peckianum Mathias & Constance | Peck's desertparsley | Apiaceae
|
| LOPI | Lomatium piperi Coult. & Rose | Indian biscuitroot | Apiaceae
|
| LOPL4 | Lomatium platycarpum (Torr.) Coult. & Rose | Lomatium simplex var. simplex | Apiaceae
|
| LOPLA | Lomatium plummerae (Coult. & Rose) Coult. & Rose var. austiniae (Coult. & Rose) Mathias | Lomatium austiniae | Apiaceae
|
| LOPLS | Lomatium plummerae (Coult. & Rose) Coult. & Rose var. sonnei (Coult. & Rose) Jepson | Lomatium austiniae | Apiaceae
|
| LOPL | Lomatium plummerae (Coult. & Rose) Coult. & Rose | Lomatium donnellii | Apiaceae
|
| LOQU2 | Lomatium quintuplex Schlessman & Constance | Umtanum desertparsley | Apiaceae
|
| LORA | Lomatium ravenii Mathias & Constance | Lassen parsley | Apiaceae
|
| LORE2 | Lomatium repostum (Jepson) Mathias | Napa biscuitroot | Apiaceae
|
| LORI2 | Lomatium rigidum (M.E. Jones) Jepson | Big Pine biscuitroot | Apiaceae
|
| LORO2 | Lomatium rollinsii Mathias & Constance | Rollins' biscuitroot | Apiaceae
|
| LORO7 | Lomatium roseanum Cronq. | biscuitroot | Apiaceae
|
| LOSA2 | Lomatium salmoniflorum (Coult. & Rose) Mathias & Constance | salmonflower biscuitroot | Apiaceae
|
| LOSA3 | Lomatium sandbergii (Coult. & Rose) Coult. & Rose | Sandberg's biscuitroot | Apiaceae
|
| LOSCS | Lomatium scabrum (Coult. & Rose) Mathias var. scabrum | rough desertparsley | Apiaceae
|
| LOSCT | Lomatium scabrum (Coult. & Rose) Mathias var. tripinnatum Goodrich | rough desertparsley | Apiaceae
|
| LOSC3 | Lomatium scabrum (Coult. & Rose) Mathias | rough desertparsley | Apiaceae
|
| LOSE2 | Lomatium serpentinum (M.E. Jones) Mathias | sweetscented biscuitroot | Apiaceae
|
| LOSH | Lomatium shevockii Hartman & Constance | Owens Peak desertparsley | Apiaceae
|
| LOSIL2 | Lomatium simplex (Nutt.) J.F. Macbr. var. leptophyllum (Hook.) Mathias | slenderleaf lomatium | Apiaceae
|
| LOSIS | Lomatium simplex (Nutt.) J.F. Macbr. var. simplex | Great Basin desertparsley | Apiaceae
|
| LOSI2 | Lomatium simplex (Nutt.) J.F. Macbr. | Great Basin desertparsley | Apiaceae
|
| LOST5 | Lomatium stebbinsii Schlessman & Constance | Stebbins' desertparsley | Apiaceae
|
| LOSUT | Lomatium suksdorfii (S. Wats.) Coult. & Rose var. thompsonii Mathias | Lomatium thompsonii | Apiaceae
|
| LOSU4 | Lomatium suksdorfii (S. Wats.) Coult. & Rose | Suksdorf's desertparsley | Apiaceae
|
| LOTH | Lomatium thompsonii (Mathias ) Cronq. | Thompson's desertparsley | Apiaceae
|
| LOTO6 | Lomatium tomentosum (Benth.) Coult. & Rose | Lomatium dasycarpum ssp. tomentosum | Apiaceae
|
| LOTO2 | Lomatium torreyi (Coult. & Rose) Coult. & Rose | Sierra biscuitroot | Apiaceae
|
| LOTR | Lomatium tracyi Mathias & Constance | Tracy's desertparsley | Apiaceae
|