| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| KRGR | Krameria grayi Rose & Painter | white ratany | Krameriaceae
|
| KRIM | Krameria imparata (J.F. Macbr.) Britt. | Krameria erecta | Krameriaceae
|
| KRIX | Krameria ixine L. | abrojo colorado | Krameriaceae
|
| KRLA | Krameria lanceolata Torr. | trailing krameria | Krameriaceae
|
| KRPAG | Krameria parvifolia Benth. var. glandulosa (Rose & Painter) J.F. Macbr. | Krameria erecta | Krameriaceae
|
| KRPAI | Krameria parvifolia Benth. var. imparata J.F. Macbr. | Krameria erecta | Krameriaceae
|
| KRPA | Krameria parvifolia Benth. | Krameria erecta | Krameriaceae
|
| KRRA | Krameria ramosissima (Gray) S. Wats. | manystem ratany | Krameriaceae
|
| KRSE | Krameria secundiflora auct. non DC. | Krameria lanceolata | Krameriaceae
|
| KRSP | Krameria spathulata Small | Krameria lanceolata | Krameriaceae
|
| KRAME | Krameria L. | ratany | Krameriaceae
|
| KRPH | Krapovickasia physaloides (Presl) Fryxell | | Malvaceae
|
| KRAPO | Krapovickasia Fryxell | krapovickasia | Malvaceae
|
| KRCE2 | Krascheninnikovia ceratoides (L.) Gueldenst. | Ceratoides latens | Chenopodiaceae
|
| KRLA2 | Krascheninnikovia lanata (Pursh) A.D.J. Meeuse & Smit | winterfat | Chenopodiaceae
|
| KRASC | Krascheninnikovia Guldenstaedt | winterfat | Chenopodiaceae
|
| KRFL | Kraunhia floribunda (Willd.) Taubert | Wisteria floribunda | Fabaceae
|
| KRFR | Kraunhia frutescens (L.) Greene | Wisteria frutescens | Fabaceae
|
| KRMA | Kraunhia macrostachya (Torr. & Gray) Small | Wisteria frutescens | Fabaceae
|
| KRBIG | Krigia biflora (Walt.) Blake ssp. glandulifera (Fern.) Iltis | Krigia biflora var. biflora | Asteraceae
|
| KRBIB | Krigia biflora (Walt.) Blake var. biflora | twoflower dwarfdandelion | Asteraceae
|
| KRBIV | Krigia biflora (Walt.) Blake var. viridis (Standl.) Kim | twoflower dwarfdandelion | Asteraceae
|
| KRBI | Krigia biflora (Walt.) Blake | twoflower dwarfdandelion | Asteraceae
|
| KRCA | Krigia caespitosa (Raf.) Chambers | weedy dwarfdandelion | Asteraceae
|
| KRCE | Krigia cespitosa (Raf.) Chambers [orthographic variant] | Krigia caespitosa | Asteraceae
|
| KRDA | Krigia dandelion (L.) Nutt. | potato dwarfdandelion | Asteraceae
|
| KRGR2 | Krigia gracilis (DC.) Shinners | Krigia caespitosa | Asteraceae
|
| KRMO | Krigia montana (Michx.) Nutt. | mountain dwarfdandelion | Asteraceae
|
| KROC | Krigia occidentalis Nutt. | western dwarfdandelion | Asteraceae
|
| KROP2 | Krigia oppositifolia Raf. | Krigia caespitosa | Asteraceae
|
| KRVI | Krigia virginica (L.) Willd. | Virginia dwarfdandelion | Asteraceae
|
| KRWR | Krigia wrightii (Gray) Chambers ex Kim | Wright's dwarfdandelion | Asteraceae
|
| KRIGI | Krigia Schreb. | dwarfdandelion | Asteraceae
|
| KRFE | Krugiodendron ferreum (Vahl) Urban | leadwood | Rhamnaceae
|
| KRUGI | Krugiodendron Urban | krugiodendron | Rhamnaceae
|
| KRST | Kruhsea streptopoides (Ledeb.) Kearney p.p. | Streptopus streptopoides ssp. streptopoides var. brevipes | Liliaceae
|
| KRUT | Krynitzkia utahensis Gray | Cryptantha utahensis | Boraginaceae
|
| KUCH2 | Kuhnia chlorolepis Woot. & Standl. | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| KUEUA | Kuhnia eupatorioides L. var. angustifolia Raf. | Brickellia eupatorioides var. eupatorioides | Asteraceae
|
| KUEUC2 | Kuhnia eupatorioides L. var. chlorolepis (Woot. & Standl.) Cronq. | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| KUEUC | Kuhnia eupatorioides L. var. corymbulosa Torr. & Gray | Brickellia eupatorioides var. corymbulosa | Asteraceae
|
| KUEUF | Kuhnia eupatorioides L. var. floridana R.W. Long | Brickellia eupatorioides var. floridana | Asteraceae
|
| KUEUG2 | Kuhnia eupatorioides L. var. gracilis Torr. & Gray | Brickellia eupatorioides var. eupatorioides | Asteraceae
|
| KUEUG | Kuhnia eupatorioides L. var. gracillima Gray | Brickellia eupatorioides var. gracillima | Asteraceae
|
| KUEUO | Kuhnia eupatorioides L. var. ozarkana Shinners | Brickellia eupatorioides var. texana | Asteraceae
|
| KUEUP | Kuhnia eupatorioides L. var. pyramidalis Raf. | Brickellia eupatorioides var. eupatorioides | Asteraceae
|
| KUEUT | Kuhnia eupatorioides L. var. texana Shinners | Brickellia eupatorioides var. texana | Asteraceae
|
| KUEU | Kuhnia eupatorioides L. | Brickellia eupatorioides var. eupatorioides | Asteraceae
|
| KUGL | Kuhnia glutinosa Ell. | Brickellia eupatorioides var. eupatorioides | Asteraceae
|
| KUHI | Kuhnia hitchcockii A. Nels. | Brickellia eupatorioides var. corymbulosa | Asteraceae
|
| KULEM | Kuhnia leptophylla Scheele var. mexicana Shinners | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| KULE | Kuhnia leptophylla Scheele | Brickellia eupatorioides var. gracillima | Asteraceae
|
| KUMI | Kuhnia microphylla Shinners | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| KUMO | Kuhnia mosieri Small | Brickellia eupatorioides var. floridana | Asteraceae
|
| KUROC | Kuhnia rosemarinifolia Vent. var. chlorolepis (Woot. & Standl.) Blake | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| KURO | Kuhnia rosemarinifolia Vent. | Brickellia eupatorioides var. eupatorioides | Asteraceae
|
| KUSH | Kuhnia shaffneri Gray | Brickellia eupatorioides var. chlorolepis | Asteraceae
|
| KUAD | Kuhnistera adenopoda Rydb. | Dalea adenopoda | Fabaceae
|
| KUPI | Kuhnistera pinnata (J.F. Gmel.) Kuntze | Dalea pinnata var. pinnata | Fabaceae
|
| KUTR | Kuhnistera truncata Small | Dalea adenopoda | Fabaceae
|
| KUCO | Kumlienia cooleyae (Vasey & Rose) Greene | Cooley's false buttercup | Ranunculaceae
|
| KUHY | Kumlienia hystricula (Gray) Greene | waterfall false buttercup | Ranunculaceae
|
| KUMLI | Kumlienia Greene | false buttercup | Ranunculaceae
|
| KUST | Kummerowia stipulacea (Maxim.) Makino | Korean clover | Fabaceae
|
| KUST2 | Kummerowia striata (Thunb.) Schindl. | Japanese clover | Fabaceae
|
| KUMME | Kummerowia Schindl. | kummerowia | Fabaceae
|
| KUMA | Kurzia makinoana (Steph.) Grolle | | Lepidoziaceae
|
| KUPA | Kurzia pauciflora (Dicks.) Grolle | | Lepidoziaceae
|
| KUSE | Kurzia setacea (Weber) Grolle | | Lepidoziaceae
|
| KUSY | Kurzia sylvatica (A. Evans) Grolle | | Lepidoziaceae
|
| KURZI | Kurzia G. Martins | | Lepidoziaceae
|
| KYBR | Kyllinga brevifolia Rottb. | shortleaf spikesedge | Cyperaceae
|
| KYBR2 | Kyllinga brevifolioides (Thieret & Delahoussaye) G. Tucker | Kyllinga gracillima | Cyperaceae
|
| KYGR | Kyllinga gracillima Miq. | pasture spikesedge | Cyperaceae
|
| KYNE | Kyllinga nemoralis (J.R. & G. Forst.) Dandy ex Hutchinson & Dalziel | whitehead spikesedge | Cyperaceae
|
| KYOD | Kyllinga odorata Vahl | fragrant spikesedge | Cyperaceae
|
| KYPE | Kyllinga peruviana Lam. | Kyllinga tibialis | Cyperaceae
|
| KYPU | Kyllinga pumila Michx. | low spikesedge | Cyperaceae
|
| KYPU2 | Kyllinga pungens Link | Kyllinga vaginata | Cyperaceae
|
| KYSE | Kyllinga sesquiflora Torr. | Kyllinga odorata | Cyperaceae
|
| KYSQ | Kyllinga squamulata Thonn. ex Vahl | Asian spikesedge | Cyperaceae
|
| KYTE | Kyllinga tenuifolia Steud. | Kyllinga pumila | Cyperaceae
|
| KYTI | Kyllinga tibialis Ledeb. | Peruvian spikesedge | Cyperaceae
|
| KYVA | Kyllinga vaginata Lam. | Carribean island spikesedge | Cyperaceae
|
| KYLLI2 | Kyllinga Rottb. | spikesedge | Cyperaceae
|
| LANI2 | Lablab niger Medik. | Lablab purpureus | Fabaceae
|
| LAPU6 | Lablab purpureus (L.) Sweet | hyacinthbean | Fabaceae
|
| LAVU3 | Lablab vulgaris Savi | Lablab purpureus | Fabaceae
|
| LABLA | Lablab Adans. | lablab | Fabaceae
|
| LABA | Labordia baillonii St. John | Labordia hirtella | Loganiaceae
|
| LACYN | Labordia cyrtandrae (Baill.) St. John var. nahikuana Sherff | Labordia hirtella | Loganiaceae
|
| LACY | Labordia cyrtandrae (Baill.) St. John | Koolau Range labordia | Loganiaceae
|
| LADEP | Labordia decurrens Sherff var. pocillata Sherff | Labordia tinifolia var. tinifolia | Loganiaceae
|
| LADE5 | Labordia decurrens Sherff | Labordia tinifolia var. tinifolia | Loganiaceae
|
| LADES | Labordia degeneri Sherff var. subcarinata Sherff | Labordia degeneri | Loganiaceae
|
| LADE6 | Labordia degeneri Sherff | Degener's labordia | Loganiaceae
|
| LAFAC | Labordia fagraeoidea Gaud. var. conferta Sherff | Labordia fagraeoidea | Loganiaceae
|
| LAFAH | Labordia fagraeoidea Gaud. var. hillebrandii Sherff | Labordia waiolani | Loganiaceae
|
| LAFAH2 | Labordia fagraeoidea Gaud. var. humei Sherff | Labordia fagraeoidea | Loganiaceae
|
| LAFAJ | Labordia fagraeoidea Gaud. var. jugorum Sherff | Labordia fagraeoidea | Loganiaceae
|
| LAFAL | Labordia fagraeoidea Gaud. var. longisepala Sherff | Labordia waiolani | Loganiaceae
|