| Brassicaceae | |
Lesquerella alpestris
| (Suksd.) G.A. Mulligan | Canad. J. Bot. 46(5): 528 | 1968 |
| Brassicaceae | |
Lesquerella alpina
| (Nutt.) S. Watson | Proc. Amer. Acad. Arts 23(2): 251 | 1888 |
| Brassicaceae | |
Lesquerella angustifolia
| (Nutt. ex Torr. & A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 253 | 1888 |
| Brassicaceae | |
Lesquerella arctica
| (Wormsk. ex Hornem.) S. Watson | Proc. Amer. Acad. Arts 23(2): 254 | 1888 |
| Brassicaceae | |
Lesquerella arenosa
| (Richardson) Rydb. | Bull. Torrey Bot. Club 29(4): 236 | 1902 |
| Brassicaceae | * |
Lesquerella argentea
| (Pursh) MacMill. | Metasp. Minnesota Valley 263 | 1892 |
| Brassicaceae | |
Lesquerella argentea
| (S. Schauer) S. Watson | Proc. Amer. Acad. Arts 23: 252 | 1888 |
| Brassicaceae | |
Lesquerella argyraea
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 254 | 1888 |
| Brassicaceae | |
Lesquerella arizonica
| S. Watson | Proc. Amer. Acad. Arts 23(2): 254 | 1888 |
| Brassicaceae | |
Lesquerella aurea
| Wooton | Bull. Torrey Bot. Club 25(5): 260 | 1898 |
| Brassicaceae | |
Lesquerella auriculata
| (Engelm. & A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 250 | 1888 |
| Brassicaceae | |
Lesquerella barnebyi
| Maguire | Leafl. W. Bot. 6(4): 73–74 | 1950 |
| Brassicaceae | |
Lesquerella berlandieri
| S. Watson | Proc. Amer. Acad. Arts 23: 252 | 1888 |
| Brassicaceae | |
Lesquerella bernardina
| Munz | Bull. S. Calif. Acad. Sci. 31(2): 62 | 1932 |
| Brassicaceae | |
Lesquerella calcicola
| Rollins | Amer. J. Bot. 26(6): 419–420, f. 1A–B | 1939 |
| Brassicaceae | |
Lesquerella calderi
| G.A. Mulligan & A.E. Porsild | Canad. J. Bot. 47(1): 215–216, pl. 1 | 1969 |
| Brassicaceae | |
Lesquerella carinata
| Rollins | Contr. Gray Herb. 171: 42–44, f. 1 E–H | 1950 |
| Brassicaceae | |
Lesquerella cinerea
| S. Watson | Proc. Amer. Acad. Arts 23(2): 255 | 1888 |
| Brassicaceae | |
Lesquerella condensata
| A. Nelson | Bull. Torrey Bot. Club 26(5): 238–239 | 1899 |
| Brassicaceae | |
Lesquerella confluens
| (Maguire & A.H. Holmgren) Reveal | Great Basin Naturalist 30(2): 96 | 1970 |
| Brassicaceae | |
Lesquerella congesta
| Rollins | Contr. Gray Herb. 214: 8–9 | 1984 |
| Brassicaceae | |
Lesquerella cordiformis
| (Rollins) Rollins & E.A. Shaw | Genus Lesquerella 248 | 1973 |
| Brassicaceae | |
Lesquerella curvipes
| A. Nelson | Bull. Torrey Bot. Club 25(4): 205 | 1898 |
| Brassicaceae | |
Lesquerella cusickii
| M.E. Jones | Contr. W. Bot. 12: 2–3 | 1908 |
| Brassicaceae | |
Lesquerella densiflora
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 251 | 1888 |
| Brassicaceae | |
Lesquerella densipila
| Rollins | Rhodora 54(643): 186–189, f. 1 | 1952 |
| Brassicaceae | |
Lesquerella didymocarpa
| A.M. Gray | | |
| Brassicaceae | |
Lesquerella diffusa
| Rollins | J. Arnold Arbor. 21: 395 | 1940 |
| Brassicaceae | |
Lesquerella diversifolia
| Greene | Pittonia 4(25A): 309 | 1901 |
| Brassicaceae | |
Lesquerella douglasii
| S. Watson | Proc. Amer. Acad. Arts 23(2): 255 | 1888 |
| Brassicaceae | |
Lesquerella engelmannii
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 254 | 1888 |
| Brassicaceae | |
Lesquerella fendleri
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 254 | 1888 |
| Brassicaceae | |
Lesquerella filiformis
| Rollins | Rhodora 58(692): 201–202 | 1956 |
| Brassicaceae | |
Lesquerella flexuosa
| Brandegee | Zoë 5(11): 233 | 1906 |
| Brassicaceae | |
Lesquerella foliacea
| Greene | Pittonia 5(27): 134 | 1903 |
| Brassicaceae | |
Lesquerella fremontii
| Rollins & E.A. Shaw | Genus Lesquerella 228–229, map 20 | 1973 |
| Brassicaceae | |
Lesquerella frigida
| (Turcz.) Payson | Ann. Missouri Bot. Gard. 8: 141. | 1922 |
| Brassicaceae | |
Lesquerella garrettii
| Payson | Ann. Missouri Bot. Gard. 8(2): 213–214 | 1922 |
| Brassicaceae | |
Lesquerella geyeri
| (Hook.) G.A. Mulligan | Canad. J. Bot. 46(5): 528 | 1968 |
| Brassicaceae | |
Lesquerella globosa
| (Desv.) S. Watson | Proc. Amer. Acad. Arts 23(2): 252 | 1888 |
| Brassicaceae | |
Lesquerella gooddingii
| Rollins & E.A. Shaw | Genus Lesquerella 164–166, map 14 | 1973 |
| Brassicaceae | |
Lesquerella goodrichii
| Rollins | J. Arnold Arbor. 64(4): 503–506, f. 3 | 1983 |
| Brassicaceae | |
Lesquerella gordonii
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 253 | 1888 |
| Brassicaceae | |
Lesquerella gracilis
| (Hook.) S. Watson | Proc. Amer. Acad. Arts 23(2): 253 | 1888 |
| Brassicaceae | |
Lesquerella grandiflora
| (Hook.) S. Watson | Proc. Amer. Acad. Arts 23(2): 250 | 1888 |
| Brassicaceae | |
Lesquerella hemiphysaria
| Maguire | Amer. Midl. Naturalist 27(2): 466–467 | 1942 |
| Brassicaceae | |
Lesquerella hitchcockii
| Munz | Bull. Torrey Bot. Club 56(3): 163–164 | 1929 |
| Brassicaceae | |
Lesquerella humilis
| Rollins | Contr. Gray Herb. 214: 9–10 | 1984 |
| Brassicaceae | |
Lesquerella inflata
| Rollins & E.A. Shaw | Genus Lesquerella 150–153 | 1973 |
| Brassicaceae | |
Lesquerella intermedia
| (S. Watson) A. Heller | Pl. World 1(2): 22 | 1897 |
| Brassicaceae | |
Lesquerella johnstonii
| Rollins | Contr. Dudley Herb. 3: 179 | 1941 |
| Brassicaceae | |
Lesquerella kaibabensis
| Rollins | Contr. Gray Herb. 211: 110–111 | 1982 |
| Brassicaceae | |
Lesquerella kingii
| (S. Watson) S. Watson | Proc. Amer. Acad. Arts 23(2): 251 | 1888 |
| Brassicaceae | |
Lesquerella klausii
| Rollins | Contr. Gray Herb. 214: 10–11 | 1984 |
| Brassicaceae | |
Lesquerella lasiocarpa
| (Hook. ex A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 251 | 1888 |
| Brassicaceae | |
Lesquerella lata
| Wooton & Standl. | Contr. U.S. Natl. Herb. 16(4): 126 | 1913 |
| Brassicaceae | |
Lesquerella latifolia
| A. Nelson | Bot. Gaz. 42(1): 49 | 1906 |
| Brassicaceae | * |
Lesquerella lepidota
| (Rose) M.E. Jones | Leafl. W. Bot. 18: 36 | 1933 |
| Brassicaceae | ! |
Lesquerella lepidota
| Cory | Rhodora 32(378): 110 | 1930 |
| Brassicaceae | |
Lesquerella lescurii
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 250 | 1888 |
| Brassicaceae | |
Lesquerella lesicii
| Rollins | Novon 5(1): 71–72 | 1995 |
| Brassicaceae | |
Lesquerella lindheimeri
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 253 | 1888 |
| Brassicaceae | |
Lesquerella longifolia
| Cory | Field & Lab. 18(3): 96–97 | 1950 |
| Brassicaceae | |
Lesquerella ludoviciana
| (Nutt.) S. Watson | Proc. Amer. Acad. Arts 23(2): 252 | 1888 |
| Brassicaceae | |
Lesquerella lunellii
| A. Nelson | Bot. Gaz. 42(1): 49–50 | 1906 |
| Brassicaceae | |
Lesquerella lyrata
| Rollins | Rhodora 57(681): 252–255, pl. 1209 | 1955 |
| Brassicaceae | |
Lesquerella macounii
| Greene | Pittonia 4(25A): 310–311 | 1901 |
| Brassicaceae | |
Lesquerella macrocarpa
| A. Nelson | Bot. Gaz. 34(5): 366–367 | 1902 |
| Brassicaceae | |
Lesquerella × maxima
| (Rollins) Rollins | Contr. Gray Herb. 181: 23 | 1957 |
| Brassicaceae | |
Lesquerella mcvaughiana
| Rollins | Contr. Gray Herb. 171: 44–46 | 1950 |
| Brassicaceae | |
Lesquerella mendocina
| (Phil.) Kurtz | Revista Mus. La Plata 5: 286 | 1893 |
| Brassicaceae | |
Lesquerella mexicana
| Rollins | Bol. Soc. Bot. México 23: 45 | 1958 |
| Brassicaceae | |
Lesquerella mirandiana
| Rollins | Bol. Soc. Bot. México 23: 43, f. 2 | 1958 |
| Brassicaceae | |
Lesquerella montana
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 251 | 1888 |
| Brassicaceae | |
Lesquerella montevidensis
| (Eichler) S. Watson | Proc. Amer. Acad. Arts 23: 251 | 1888 |
| Brassicaceae | |
Lesquerella multiceps
| Maguire | Amer. Midl. Naturalist 27(2): 465–466 | 1942 |
| Brassicaceae | |
Lesquerella navajoensis
| O'Kane | Madroño 46(2): 88–91, f. 1–2 | 1999 |
| Brassicaceae | |
Lesquerella nodosa
| Greene | Pittonia 4(25A): 309–310 | 1901 |
| Brassicaceae | |
Lesquerella nuttallii
| (Torr. & A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 252–253 | 1888 |
| Brassicaceae | |
Lesquerella obdeltata
| Rollins | Cruciferae Continental N. Amer. 640–641 | 1993 |
| Brassicaceae | |
Lesquerella occidentalis
| (S. Watson) S. Watson | Proc. Amer. Acad. Arts 23(2): 251 | 1888 |
| Brassicaceae | |
Lesquerella oregona
| (S. Watson) G.A. Mulligan | Canad. J. Bot. 46(5): 528 | 1968 |
| Brassicaceae | |
Lesquerella ovalifolia
| Rydb. | Ill. Fl. N. U.S. 2: 137, f. 1749 | 1897 |
| Brassicaceae | |
Lesquerella ovata
| Greene | Pittonia 4(25A): 308 | 1901 |
| Brassicaceae | |
Lesquerella pallida
| (Torr. & A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 253 | 1888 |
| Brassicaceae | |
Lesquerella palmeri
| S. Watson | Proc. Amer. Acad. Arts 23(2): 255 | 1888 |
| Brassicaceae | |
Lesquerella parviflora
| Rollins | J. Arnold Arbor. 64(4): 506–507 | 1983 |
| Brassicaceae | |
Lesquerella parvula
| Greene | Pittonia 4(25A): 308–309 | 1901 |
| Brassicaceae | |
Lesquerella paysonii
| Rollins | Contr. Gray Herb. 171: 44 | 1950 |
| Brassicaceae | |
Lesquerella pendula
| Rollins | Cruciferae Continental N. Amer. 647, 649 | 1993 |
| Brassicaceae | |
Lesquerella peninsularis
| Wiggins | Contr. Dudley Herb. 1: 166 | 1933 |
| Brassicaceae | |
Lesquerella perforata
| Rollins | Rhodora 54(643): 190–191 | 1952 |
| Brassicaceae | |
Lesquerella pinetorum
| Wooton & Standl. | Contr. U.S. Natl. Herb. 16(4): 126 | 1913 |
| Brassicaceae | |
Lesquerella polyantha
| (Schltdl.) Small | Fl. S.E. U.S. 471 | 1903 |
| Brassicaceae | |
Lesquerella praecox
| Wooton & Standl. | Contr. U.S. Natl. Herb. 16(4): 126–127 | 1913 |
| Brassicaceae | |
Lesquerella prostrata
| A. Nelson | Bull. Torrey Bot. Club 26(3): 124 | 1899 |
| Brassicaceae | |
Lesquerella pruinosa
| Greene | Pittonia 4(25A): 307–308 | 1901 |
| Brassicaceae | |
Lesquerella pueblensis
| Payson | Ann. Missouri Bot. Gard. 8: 169, f. 13 | 1921 |
| Brassicaceae | |
Lesquerella pulchella
| Rollins | Novon 5(1): 72–75, f. 1–4 | 1995 |
| Brassicaceae | |
Lesquerella purpurea
| (A. Gray) S. Watson | Proc. Amer. Acad. Arts 23(2): 253 | 1888 |