| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LUCA11 | Lupinus carolus-bucarii C.P. Sm. | Lupinus polyphyllus ssp. superbus | Fabaceae
|
| LUCAA | Lupinus caudatus Kellogg ssp. argophyllus (Gray) L. Phillips | Kellogg's spurred lupine | Fabaceae
|
| LUCAC3 | Lupinus caudatus Kellogg ssp. caudatus | tailcup lupine | Fabaceae
|
| LUCAC | Lupinus caudatus Kellogg ssp. cutleri (Eastw.) Hess & D. Dunn | Cutler's spurred lupine | Fabaceae
|
| LUCAM | Lupinus caudatus Kellogg ssp. montigenus (Heller) Hess & D. Dunn | Kellogg's spurred lupine | Fabaceae
|
| LUCAA2 | Lupinus caudatus Kellogg var. argophyllus (Gray) Welsh | Lupinus caudatus ssp. argophyllus | Fabaceae
|
| LUCAC5 | Lupinus caudatus Kellogg var. cutleri (Eastw.) Welsh | Lupinus caudatus ssp. cutleri | Fabaceae
|
| LUCAR | Lupinus caudatus Kellogg var. rubricaulis (Greene) C.P. Sm. | Lupinus argenteus ssp. rubricaulis | Fabaceae
|
| LUCAS | Lupinus caudatus Kellogg var. submanens C.P. Sm. | Lupinus arbustus ssp. neolaxiflorus | Fabaceae
|
| LUCAS3 | Lupinus caudatus Kellogg var. subtenellus C.P. Sm. | Lupinus caudatus ssp. caudatus | Fabaceae
|
| LUCAU2 | Lupinus caudatus Kellogg var. utahensis (S. Wats.) Welsh | Lupinus caudatus ssp. caudatus | Fabaceae
|
| LUCA | Lupinus caudatus Kellogg | tailcup lupine | Fabaceae
|
| LUCA10 | Lupinus caudiciferus Eastw. | Lupinus latifolius ssp. latifolius | Fabaceae
|
| LUCE | Lupinus cervinus Kellogg | Santa Lucia lupine | Fabaceae
|
| LUCHL | Lupinus chamissonis Eschsch. var. longifolius S. Wats. | Lupinus longifolius | Fabaceae
|
| LUCH | Lupinus chamissonis Eschsch. | chamisso bush lupine | Fabaceae
|
| LUCH3 | Lupinus charlestonensis C.P. Sm. | Lupinus argenteus ssp. argenteus var. laxiflorus | Fabaceae
|
| LUCH2 | Lupinus chihuahuensis S. Wats. | Chihuahuan lupine | Fabaceae
|
| LUCH4 | Lupinus chionophilus Greene ex C.F. Baker | Lupinus sellulus ssp. sellulus var. lobbii | Fabaceae
|
| LUCH5 | Lupinus christinae Heller | Lupinus angustiflorus | Fabaceae
|
| LUCIC | Lupinus citrinus Kellogg var. citrinus | orangeflower lupine | Fabaceae
|
| LUCID | Lupinus citrinus Kellogg var. deflexus (Congd.) Jepson | orangeflower lupine | Fabaceae
|
| LUCI | Lupinus citrinus Kellogg | orangeflower lupine | Fabaceae
|
| LUCL | Lupinus clarkensis C.P. Sm. | Lupinus argenteus ssp. argenteus var. laxiflorus | Fabaceae
|
| LUCL2 | Lupinus clokeyanus C.P. Sm. | Lupinus alpestris | Fabaceae
|
| LUCOS | Lupinus columbianus Heller var. simplex C.P. Sm. | Lupinus latifolius ssp. longipes | Fabaceae
|
| LUCO10 | Lupinus columbianus Heller | Lupinus latifolius ssp. latifolius | Fabaceae
|
| LUCO11 | Lupinus comatus Rydb. | Lupinus bakeri ssp. amplus | Fabaceae
|
| LUCOC | Lupinus concinnus J.G. Agardh ssp. concinnus | scarlet lupine | Fabaceae
|
| LUCOO | Lupinus concinnus J.G. Agardh ssp. optatus (C.P. Sm.) D. Dunn | scarlet lupine | Fabaceae
|
| LUCOO2 | Lupinus concinnus J.G. Agardh ssp. orcuttii (S. Wats.) D. Dunn | Orcutt's lupine | Fabaceae
|
| LUCOA2 | Lupinus concinnus J.G. Agardh var. agardhianus (Heller) C.P. Sm. | Lupinus agardhianus | Fabaceae
|
| LUCOA | Lupinus concinnus J.G. Agardh var. arizonicus S. Wats. | Lupinus arizonicus ssp. arizonicus var. arizonicus | Fabaceae
|
| LUCOB | Lupinus concinnus J.G. Agardh var. brevior (Jepson) D. Dunn | Lupinus brevior | Fabaceae
|
| LUCOD | Lupinus concinnus J.G. Agardh var. desertorum (Heller) C.P. Sm. | Lupinus pallidus | Fabaceae
|
| LUCOO3 | Lupinus concinnus J.G. Agardh var. optatus C.P. Sm. | Lupinus concinnus ssp. optatus | Fabaceae
|
| LUCOO4 | Lupinus concinnus J.G. Agardh var. orcuttii (S. Wats.) C.P. Sm. | Lupinus concinnus ssp. orcuttii | Fabaceae
|
| LUCOP | Lupinus concinnus J.G. Agardh var. pallidus (Brandeg.) C.P. Sm. | Lupinus pallidus | Fabaceae
|
| LUCO | Lupinus concinnus J.G. Agardh | scarlet lupine | Fabaceae
|
| LUCOR | Lupinus confertus Kellogg var. ramosus (Jepson) Eastw. | Lupinus confertus | Fabaceae
|
| LUCO2 | Lupinus confertus Kellogg | crowded lupine | Fabaceae
|
| LUCO12 | Lupinus confusus Heller, non Rose | Lupinus latifolius ssp. latifolius | Fabaceae
|
| LUCO3 | Lupinus congdonii (C.P. Sm.) D. Dunn | Congdon's lupine | Fabaceae
|
| LUCO7 | Lupinus constancei T.W. & J.P. Nelson | lassicus lupine | Fabaceae
|
| LUCO9 | Lupinus corymbosus Heller | Lupinus argenteus ssp. argenteus var. argenteus | Fabaceae
|
| LUCO4 | Lupinus covillei Greene | shaggy lupine | Fabaceae
|
| LUCR3 | Lupinus crassulus Greene ex C.F. Baker | Lupinus culbertsonii ssp. hypolasius | Fabaceae
|
| LUCR2 | Lupinus crassus Payson | Paradox lupine | Fabaceae
|
| LUCRC | Lupinus croceus Eastw. var. croceus | Mt. Eddy lupine | Fabaceae
|
| LUCRP | Lupinus croceus Eastw. var. pilosellus (Eastw.) Munz | Mt. Eddy lupine | Fabaceae
|
| LUCR | Lupinus croceus Eastw. | Mt. Eddy lupine | Fabaceae
|
| LUCUC | Lupinus culbertsonii Greene ssp. culbertsonii | Hoskett Meadows lupine | Fabaceae
|
| LUCUH | Lupinus culbertsonii Greene ssp. hypolasius (Greene) Cox | Hoskett Meadows lupine | Fabaceae
|
| LUCU | Lupinus culbertsonii Greene | Hoskett Meadows lupine | Fabaceae
|
| LUCU2 | Lupinus cumulicola Small | | Fabaceae
|
| LUCUA | Lupinus cusickii S. Wats. ssp. abortivus (Greene) Cox | Cusick's lupine | Fabaceae
|
| LUCUB | Lupinus cusickii S. Wats. ssp. brachypodus (Piper) Cox | Cusick's lupine | Fabaceae
|
| LUCUC2 | Lupinus cusickii S. Wats. ssp. cusickii | Cusick's lupine | Fabaceae
|
| LUCU3 | Lupinus cusickii S. Wats. | Cusick's lupine | Fabaceae
|
| LUCU5 | Lupinus cutleri Eastw. | Lupinus caudatus ssp. cutleri | Fabaceae
|
| LUCY4 | Lupinus cyaneus Rydb. | Lupinus leucophyllus ssp. leucophyllus var. leucophyllus | Fabaceae
|
| LUCY2 | Lupinus �cymba-egressus C.P. Sm. (pro sp.) | | Fabaceae
|
| LUCY3 | Lupinus cytisoides J.G. Agardh | Lupinus latifolius ssp. latifolius | Fabaceae
|
| LUDA | Lupinus dalesiae Eastw. | Quincy lupine | Fabaceae
|
| LUDAB | Lupinus danaus Gray var. bicolor Eastw. | Lupinus lyallii ssp. lyallii var. danaus | Fabaceae
|
| LUDA3 | Lupinus danaus Gray | Lupinus lyallii ssp. lyallii var. danaus | Fabaceae
|
| LUDA2 | Lupinus dasyphyllus Greene | Lupinus covillei | Fabaceae
|
| LUDE8 | Lupinus debilis Eastw. | Lupinus adsurgens var. adsurgens | Fabaceae
|
| LUDE9 | Lupinus debilis Greene ex C.F. Baker, non Eastw. | Lupinus adsurgens var. adsurgens | Fabaceae
|
| LUDEA3 | Lupinus decumbens Nutt. var. argophyllus Gray | Lupinus caudatus ssp. argophyllus | Fabaceae
|
| LUDE10 | Lupinus decumbens Torr. | Lupinus argenteus ssp. argenteus var. argenteus | Fabaceae
|
| LUDE5 | Lupinus dedeckerae Munz & D. Dunn | Lupinus padre-crowleyi | Fabaceae
|
| LUDE7 | Lupinus deflexus Congd. | Lupinus citrinus var. deflexus | Fabaceae
|
| LUDEA4 | Lupinus densiflorus Benth. ssp. austrocollium (C.P. Sm.) D. Dunn | Lupinus densiflorus var. austrocollium | Fabaceae
|
| LUDEL4 | Lupinus densiflorus Benth. ssp. lacteus (Kellogg) Beauchamp | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDEA5 | Lupinus densiflorus Benth. var. altus C.P. Sm. | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDEA | Lupinus densiflorus Benth. var. aureus (Kellogg) Munz | whitewhorl lupine | Fabaceae
|
| LUDEA2 | Lupinus densiflorus Benth. var. austrocollium C.P. Sm. | whitewhorl lupine | Fabaceae
|
| LUDEC | Lupinus densiflorus Benth. var. crinitus Eastw. ex C.P. Sm. | Lupinus densiflorus var. palustris | Fabaceae
|
| LUDEC2 | Lupinus densiflorus Benth. var. curvicarinus C.P. Sm. | Lupinus densiflorus var. palustris | Fabaceae
|
| LUDED | Lupinus densiflorus Benth. var. densiflorus | whitewhorl lupine | Fabaceae
|
| LUDED2 | Lupinus densiflorus Benth. var. dudleyi C.P. Sm. | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDEG | Lupinus densiflorus Benth. var. glareosus (Elmer) C.P. Sm. | whitewhorl lupine | Fabaceae
|
| LUDEL | Lupinus densiflorus Benth. var. lacteus (Kellogg) C.P. Sm. | whitewhorl lupine | Fabaceae
|
| LUDEL3 | Lupinus densiflorus Benth. var. latidens C.P. Sm. | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDEL2 | Lupinus densiflorus Benth. var. latilabris C.P. Sm. | Lupinus densiflorus var. densiflorus | Fabaceae
|
| LUDEM2 | Lupinus densiflorus Benth. var. mcgregorii C.P. Sm. | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDEM | Lupinus densiflorus Benth. var. menziesii (J.G. Agardh) C.P. Sm. | Lupinus densiflorus var. aureus | Fabaceae
|
| LUDEP | Lupinus densiflorus Benth. var. palustris (Kellogg) C.P. Sm. | whitewhorl lupine | Fabaceae
|
| LUDEP2 | Lupinus densiflorus Benth. var. perfistulosus C.P. Sm. | Lupinus densiflorus var. aureus | Fabaceae
|
| LUDEP3 | Lupinus densiflorus Benth. var. persecundus C.P. Sm. | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDES | Lupinus densiflorus Benth. var. scopulorum C.P. Sm. | Lupinus densiflorus var. densiflorus | Fabaceae
|
| LUDES3 | Lupinus densiflorus Benth. var. stanfordianus C.P. Sm. | Lupinus densiflorus var. palustris | Fabaceae
|
| LUDES4 | Lupinus densiflorus Benth. var. stenopetalus C.P. Sm. | Lupinus densiflorus var. densiflorus | Fabaceae
|
| LUDES2 | Lupinus densiflorus Benth. var. sublanatus C.P. Sm. | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDET | Lupinus densiflorus Benth. var. tracyi C.P. Sm. | Lupinus densiflorus var. densiflorus | Fabaceae
|
| LUDET2 | Lupinus densiflorus Benth. var. trichocalyx C.P. Sm. | Lupinus densiflorus var. palustris | Fabaceae
|
| LUDEV | Lupinus densiflorus Benth. var. vastiticola C.P. Sm. | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDEV2 | Lupinus densiflorus Benth. var. versatabilis C.P. Sm. | Lupinus densiflorus var. lacteus | Fabaceae
|
| LUDE2 | Lupinus densiflorus Benth. | whitewhorl lupine | Fabaceae
|
| LUDE3 | Lupinus depressus Rydb. | depressed lupine | Fabaceae
|