Per Axel Rydberg | Academic Influence

Per Axel Rydberg's AcademicInfluence.com Rankings

Per Axel Rydberg

Biology

#3273

Historical Rank

Botany

#220

Historical Rank

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Biology

Per Axel Rydberg's Degrees

PhD Botany Columbia University

Why Is Per Axel Rydberg Influential?

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According to Wikipedia, Per Axel Rydberg was a Swedish-born, American botanist who was the first curator of the New York Botanical Garden Herbarium. Biography Per Axel Rydberg was born in Odh, Västergötland, Sweden and emigrated to the United States in 1882. From 1884 to 1890, he taught mathematics at Luther Academy in Wahoo, Nebraska, while he studied at the University of Nebraska. He graduated from the University of Nebraska–Lincoln and . He earned his graduate degree from Columbia University .

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Per Axel Rydberg's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Flora of the southeastern United States (199)
Flora of the prairies and plains of central North America (1932) (101)
Studies on the Rocky Mountain Flora-XVI (1906) (44)
Catalogue of the flora of Montana and the Yellowstone National Park (38)
A monograph of the North American Potentilleae (25)
Some generic segregations (22)
The Section Tuberarium of the Genus Solanum in Mexico and Central America (1924) (20)
Flora of the sand hills of Nebraska (16)
The American species of Limnorchis and Piperia, north of Mexico (15)
Studies on the Rocky Mountain Flora.-I (1900) (13)
Some Senecioid Genera-I (1924) (11)
Flora of the Black Hills of South Dakota. By P.A. Rydberg. (10)
Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolina, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana, and in Oklahoma and Texas east of the one hundredth meridian, (10)
Phytogeographical Notes on the Rocky Mountain Region V. Grasslands of the Subalpine and Montane Zones (10)
Studies on the Rocky Mountain Flora-XVIII (1907) (9)
Studies on the Rocky Mountain Flora-VII (1902) (9)
GENERA OF NORTH AMERICAN FABACEAE III. TRIBE PSORALEAE (1928) (9)
Flora of the Rocky Mountains and adjacent plains, Colorado, Utah, Wyoming, Idaho, Montana, Saskatchewan, Alberta, and neighboring parts of Nebraska, South Dakota, and British Columbia /by P. A. Rydberg... (9)
Studies on the Rocky Mountain Flora.-V (1901) (8)
Phytogeographical Notes on the Rocky Mountain Region. II. Origin of the Alpine Flora (1914) (8)
Studies on the Rocky Mountain Flora-XXVIII (1913) (7)
Studies on the Rocky Mountain Flora-XII. (1904) (7)
Studies on the Rocky Mountain Flora-XX (1909) (6)
Studies on the Rocky Mountain flora -- XXIX (1913) (6)
Phytogeographical Notes on the Rocky Mountain Region. I. Alpine Region (1913) (6)
Studies on the Rocky Mountain flora-XXVII (1912) (6)
Studies on the Rocky Mountain Flora.-VI (1901) (6)
Studies on the Rocky Mountain Flora-XXIV (1910) (6)
Studies on the Rocky Mountain Flora-XIII (1904) (5)
Astragalus and Its Segregates as Represented in Colorado (1905) (5)
Studies on the Rocky Mountain Flora-XXVI (1912) (5)
Notes on Fabaceae-IX (Continued) (1927) (5)
Phytogeographical Notes on the Rocky Mountain Region. VII. Formations in the Subalpine Zone (1917) (5)
Studies on the Rocky Mountain Flora-XVII (4)
Studies on the Rocky Mountain Flora-XI. (1904) (4)
Studies on the Rocky Mountain Flora-XXII (1910) (4)
Notes on Rosaceae-IX (1915) (4)
Phytogeographical Notes on the Rocky Mountain Region. III. Formations in the Alpine Zone (1914) (4)
On the American Black Cottonwood (1893) (4)
Studies on the Rocky Mountain Flora-XV (1905) (4)
Phytogeographical Notes on the Rocky Mountain Region. IX. Wooded Formations of the Montane Zone of the Southern Rockies (1920) (3)
Studies on the Rocky Mountain Flora.-III (1900) (3)
Notes on Rosaceae-XII (1920) (3)
Studies on the Rocky Mountain Flora.-IV (3)
Notes on Fabaceae-I (1923) (3)
Studies on the Rocky Mountain Flora-II (1900) (3)
Delphinium Carolinianum and related species (3)
Rarieties from Montana.-II (1897) (3)
Liabeae, Neurolaeneae, Senecioneae (pars) (3)
Rarities from Montana.-III (1897) (3)
Carduales Ambrosiaceae, Carduaceae (3)
GENERA OF NORTH AMERICAN FABACEAE I. TRIBE GALEGEAE (1923) (3)
Genera of North American Fabaceae IV. Tribe Psoraleae (Continued) (1928) (2)
Studies on the Rocky Mountain Flora-XIX (1909) (2)
Studies on the Rocky Mountain Flora-VIII (1902) (2)
GENERA OF NORTH AMERICAN FABACEAE II. TRIBE GALEGEAE (CONTINUED) (1924) (2)
Phytogeographical Notes on the Rocky Mountain Region. VI. Distribution of the Subalpine Plants (1916) (2)
Taxonomic notes on the flora of the prairies and plains of Central North America (1931) (2)
Notes on Rosaceae-VIII (1914) (2)
Studies on the Rocky Mountain Flora.-X (1903) (2)
Studies on the Rocky Mountain Flora-XXI (1910) (2)
Notes on Rosaceae-III (1910) (1)
Flora of Colorado, by P.A. Rydberg. (1)
New Species of Physalis (1895) (1)
Some Changes in the Nomenclature of North American Rosaceae (1)
LINNAeUS AND AMERICAN BOTANY. (1907) (1)
Studies on the Rocky Moutain Flora-XIV (1905) (1)
Studies on the Rocky Mountain Flora-XXV (1)
A short phytogeography of the prairies and great plains of Central north America (1931) (1)
Some Senecioid Genera-II (Continued) (1924) (1)
Indigofereae, Galegeae (pars) (1)
New species from the western United States (1)
Notes on Fabaceae-X (1928) (1)
Notes on Rosaceae-X (1915) (1)
Notes on Rosaceae-XIII (1921) (1)
Notes on Potentilla.-III (1896) (1)
Notes on Rosaceae-XI (1917) (1)
Report of a botanical exploration of the sand-hill region of central Nebraska made in the summer of 1893 (0)
Notes on Rosaceae-II (1909) (0)
Further studies on the Potentilleae (0)
Studies on the Rocky Mountain Flora-IX (1902) (0)
GENERA OF NORTH AMERICAN FABACEAE VII. ASTRAGALUS AND RELATED GENERA (CONTINUED) (1930) (0)
Antennaria dioica and its North American Allies (1897) (0)
Notes on Rosaceae-VII (1914) (0)
Notes on Fabaceae-VIII (0)
Report of the Second Norwegian Expedition in the "FRAM" 1898-1902. No. 11. Bryophyta by N. Bryhn, Kristiania, 1907 (1908) (0)
COMPOSITION OF THE ROCKY MOUNTAIN FLORA. (1900) (0)
The Section Tuberarium of the Genus Solanum in Mexico and Central America: Concluding Paper (1924) (0)
What is Prunus insititia? (1899) (0)
Killip & Smith Plants Det. at New York Botanical Garden (0)
Phytogeographical Notes on the Rocky Mountain Regio. VIII. Distribution of the Montane Plants (1919) (0)
Phytogeographical Notes on the Rocky Mountain Region. X. Grasslands and Other Open Formations of the Montane Zone of the Southern Rockies (1921) (0)
Alpine Vegetation of the Rocky Mountains@@@Phytogeographical Notes on the Rocky Mountain Region. i. Alpine Region.@@@Phytogeographical Notes on the Rocky Mountain Region. ii. Origin of the Alpine Flora. (1914) (0)
Flora of the southeastern United States; being descriptions of the seed-plants, ferns and fern-allies growing naturally in North Carolina, South Carolina, Georgia, Florida, Tennessee, Alabama, Mississippi, Arkansas, Louisiana, and in Oklahom by John Kunkel Small. (0)
Linnæus and American Botany (1908) (0)
Notes on Fabaceae- XIII (1930) (0)
Notes on Fabaceae-VI (1925) (0)
Notes on Fabaceae-XII (1929) (0)
Saxifragaceae, Hydrangeaceae . Cunoniaceae, Iteaceae, Hamamelidaceae . Pterostemonaceae . Altingiaceae . Phyllonomaceae (0)
Notes on Two Western Plants (1897) (0)
Notes on Rosaceae-V. Potentilla (Continued) (1911) (0)
Rosales) Fabaceae Galegeae (0)
Carduales Carduaceae Helenieae (0)
Notes on Fabaceae-III (0)
Rosales) Fabaceae Psoraleae (0)
Notes on Fabaceae-XI (1928) (0)
Notes on Fabaceae-II (1923) (0)
Notes on Rosaceae-XIV (1923) (0)
Helenieae . Baeria, Lasthenia (0)
Notes on Fabaceae-IV (1925) (0)
Notes on Fabaceae-V (1925) (0)
Studies on the Rocky Mountain Flora-XXIII (1910) (0)
Flora of Colorado, by P. A. Rydberg, PH. D. (0)
GENERA OF NORTH AMERICAN FABACEAE V. ASTRAGALUS AND RELATED GENERA (1928) (0)
Notes on Rosaceae-VI (1911) (0)
List of plants collected on the Peary Arctic Expedition of 1905-06 and 1908-09 with a general description of the flora of northern Greenland and Ellesmere Land (0)
Notes on Fabaceae-VII (1926) (0)
Notes on Rosaceae-IV (1910) (0)

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