By Rydberg, Per Axel, 1860-1931 . Genre n-us-co / Botany / Colorado . Names leaves / la / aegonychon gray / alsinella gray / anemonanthaea gray and 17012 more

By Gray, Asa, 1810-1888 / Sullivant, William Starling, 1803-1873 . Genre n-us--- / Botany / United States . Names leaves / flowers / calyx / fruit / corolla and 18426 more

By Gray, Asa, 1810-1888 / Sullivant, William Starling, 1803-1873 . Genre n-us--- / Botany / United States . Names leaves / flowers / calyx / fruit / corolla and 18426 more

Genre e-ur--- / Botany / Soviet Union . Names plants / leaves / type / ca / flowers and 24378 more

By Macoun, John, 1831-1920 / Kindberg, N. C. (Nils Conrad), 1832-1910 . Genre Botany / Canada . Names island / victoria / columbia / plants / soil and 16368 more

By Vanderhorst, James P. . Genre n-us-mt / Botany / Lemhi Pass Region (Idaho and Mont.) / Rare plants / Lemhi Pass Region (Idaho and Mont.) and 6 more . Names montana / area / penstemon / mimulus / plants and 241 more

By Gray, Asa, 1810-1888 . Genre Botany . Names leaves / flowers / plants / flower / calyx and 5233 more

By Nakai, Takenoshin, b. 1882 . Genre Botany / Korea . Names salix / folia / flos / populus / lata and 3018 more

By Macmillan, Hugh, 1833-1903 . Genre Botany . Names plants / fungi / life / called / lichens and 2173 more

By Standley, Paul Carpenter, 1884-1963 . Genre nccr--- / Botany / Costa Rica . Names leaves / america / flowers / costa / fruit and 11816 more