13 treff

Flora of the prairies and plains of central North America
by Per Axel Rydberg
Bok Engelsk 1965
Flora of the prairies and plains of central North America
Rydberg, Per Axel
Bok Engelsk 1932
(Chenopodiales) : Baticaceae, Petiveriaceae, Tetragoniaceae, Basellaceae
Percy Wilson. Portulacaceae / Per Axel Ry...
Bok Engelsk 1932
(Rosales) : Fabaceae : Galegeae (pars)
Per Axel Rydberg
Bok Engelsk 1929
(Carduales) : Carduaceae : Liabeae, Neurolaeneae, Senecioneae (pars)
Per Axel Rydberg
Bok Engelsk 1927
(Rosales) : Fabaceae : Indigofereae, Galegeae (pars)
Per Axel Rydberg
Bok Engelsk 1923
Flora of the Rocky Mountains and adjacent plains : Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, North Dakota, and British Columbia
Rydberg, Per Axel
Bok Engelsk 1922
Rosaceae (pars)
Per Axel Rydberg
Bok Engelsk 1913
Scandinavians who have contributed to the knowledge of the flora of North America
by Per Axel Rydberg
Bok Språk ikke angitt 1907
Flora of Colorado
Rydberg, Per Axel
Bok Engelsk 1906
Rosales
Small, John K.
Bok Engelsk 1905
Saxifragaceae, Hydrangeaceae
Small, John K.
Bok Engelsk 1905
A monograph of the North American Potentilleae
Rydberg, Per Axel
Bok Engelsk 1898