Robert Ornduff

5.9k total citations · 2 hit papers
167 papers, 4.7k citations indexed

About

Robert Ornduff is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Molecular Biology. According to data from OpenAlex, Robert Ornduff has authored 167 papers receiving a total of 4.7k indexed citations (citations by other indexed papers that have themselves been cited), including 109 papers in Ecology, Evolution, Behavior and Systematics, 90 papers in Plant Science and 48 papers in Molecular Biology. Recurrent topics in Robert Ornduff's work include Plant and animal studies (56 papers), Plant Diversity and Evolution (51 papers) and Botany, Ecology, and Taxonomy Studies (38 papers). Robert Ornduff is often cited by papers focused on Plant and animal studies (56 papers), Plant Diversity and Evolution (51 papers) and Botany, Ecology, and Taxonomy Studies (38 papers). Robert Ornduff collaborates with scholars based in United States, Canada and Israel. Robert Ornduff's co-authors include Jack Major, Michael G. Barbour, Stephen G. Weller, I. K. Ferguson, Bruce A. Bohm, Jan‐Peter Müller, Armen Takhtajan, Mary E. White, John R.C. Wheeler and Peter H. Raven and has published in prestigious journals such as Science, Ecology and New Phytologist.

In The Last Decade

Robert Ornduff

163 papers receiving 4.1k citations

Hit Papers

Terrestrial Vegetation of California. 1969 2026 1988 2007 1977 1969 200 400 600
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Terrestrial Vegetation of California.
    1977 621 citations Robert Ornduff et al. Systematic Botany profile →
  2. REPRODUCTIVE BIOLOGY IN RELATION TO SYSTEMATICS
    1969 354 citations Robert Ornduff profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Robert Ornduff United States 37 3.2k 2.4k 1.7k 1.3k 616 167 4.7k
Beryl B. Simpson United States 39 3.8k 1.2× 2.5k 1.0× 1.7k 1.0× 1.1k 0.9× 774 1.3× 110 6.2k
Jean H. Langenheim United States 35 1.8k 0.6× 1.6k 0.7× 981 0.6× 549 0.4× 587 1.0× 97 4.0k
Otto T. Solbrig United States 35 2.4k 0.8× 2.3k 1.0× 596 0.4× 2.3k 1.8× 977 1.6× 108 5.0k
Daniel I. Axelrod United States 36 3.3k 1.0× 1.9k 0.8× 1.3k 0.8× 1.4k 1.1× 926 1.5× 91 5.4k
Áskell Löve United States 48 5.4k 1.7× 6.0k 2.5× 2.2k 1.3× 709 0.6× 561 0.9× 231 8.6k
John C. Manning South Africa 35 3.7k 1.2× 2.3k 1.0× 1.3k 0.8× 1.7k 1.3× 421 0.7× 292 5.1k
Warren L. Wagner United States 40 3.5k 1.1× 1.7k 0.7× 1.9k 1.1× 1.1k 0.8× 805 1.3× 186 5.4k
C. A. Stace United Kingdom 28 2.0k 0.6× 2.4k 1.0× 717 0.4× 832 0.6× 638 1.0× 92 4.0k
E. Durant McArthur United States 35 1.5k 0.5× 1.7k 0.7× 575 0.3× 1.4k 1.1× 1.4k 2.3× 156 3.6k
Scott A. Mori United States 33 3.1k 1.0× 1.5k 0.6× 1.1k 0.7× 1.4k 1.1× 752 1.2× 120 4.9k

Countries citing papers authored by Robert Ornduff

Since Specialization
Citations

This map shows the geographic impact of Robert Ornduff's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Robert Ornduff with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert Ornduff more than expected).

Fields of papers citing papers by Robert Ornduff

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert Ornduff. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Robert Ornduff. The network helps show where Robert Ornduff may publish in the future.

Co-authorship network of co-authors of Robert Ornduff

This figure shows the co-authorship network connecting the top 25 collaborators of Robert Ornduff. A scholar is included among the top collaborators of Robert Ornduff based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Robert Ornduff. Robert Ornduff is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ornduff, Robert. (2001). A(nother) New Species of Villarsia (Menyanthaceae) from South Africa. Novon A Journal for Botanical Nomenclature. 11(4). 437–437. 5 indexed citations
2.
Dulberger, Rivka & Robert Ornduff. (2000). Stigma morphology in distylous and non-heterostylous species ofVillarsia (Menyanthaceae). Plant Systematics and Evolution. 225(1-4). 171–184. 17 indexed citations
3.
Ornduff, Robert & Michael C. Vasey. (1995). THE VEGETATION AND FLORA OF THE MARIN ISLANDS, CALIFORNIA. Biodiversity Heritage Library (Smithsonian Institution). 2 indexed citations
4.
Crawford, Daniel J. & Robert Ornduff. (1989). Enzyme Electrophoresis and Evolutionary Relationships Among Three Species of Lasthenia (Asteraceae: Heliantheae). American Journal of Botany. 76(2). 289–289. 7 indexed citations
5.
Ornduff, Robert, et al.. (1987). Islands on islands : plant life on the granite outcrops of Western Australia. University of Hawaii Press eBooks. 20 indexed citations
6.
Bohm, Bruce A., et al.. (1986). Flavonoids of the Menyanthaceae: Intra-and Interfamilial Relationships. American Journal of Botany. 73(2). 204–204. 9 indexed citations
7.
Crawford, Daniel J., et al.. (1985). ALLOZYME VARIATION WITHIN AND BETWEEN LASTHENIA MINOR AND ITS DERIVATIVE SPECIES, L. MARITIMA (ASTERACEAE). American Journal of Botany. 72(8). 1177–1184. 62 indexed citations
8.
Ornduff, Robert. (1983). Studies on the Reproductive System of Nivenia corymbosa (Iridaceae), an Apparently Androdioecious Species. Annals of the Missouri Botanical Garden. 70(1). 146–146. 7 indexed citations
9.
Ornduff, Robert. (1980). Heterostyly, Population Composition, and Pollen Flow in Hedyotis caerulea. American Journal of Botany. 67(1). 95–95. 30 indexed citations
10.
Ornduff, Robert. (1979). Features of Pollen Flow in Gelsemium sempervirens (Loganiaceae). Journal of the Arnold Arboretum. 60(3). 377–381. 13 indexed citations
11.
Ornduff, Robert, et al.. (1978). Plants Agriculture and Human Society.. Systematic Botany. 3(1). 19–19. 3 indexed citations
12.
Ornduff, Robert, S. T. Cowan, & L. R. Hill. (1978). A Dictionary of Microbial Taxonomy.. Systematic Botany. 3(4). 373–373. 24 indexed citations
13.
Ornduff, Robert & Stephen G. Weller. (1975). PATTERN DIVERSITY OF INCOMPATIBILITY GROUPS IN JEPSONIA HETERANDRA (SAXIFRAGACEAE). Evolution. 29(2). 373–375. 10 indexed citations
14.
Ornduff, Robert. (1975). Heterostyly and pollen flow in Hypericum aegypticum (Guttiferae). Botanical Journal of the Linnean Society. 71(1). 51–57. 41 indexed citations
15.
Ornduff, Robert. (1974). An introduction to California plant life. Biodiversity Heritage Library (Smithsonian Institution). 36 indexed citations
16.
Ornduff, Robert. (1969). Neotropical Nymphoides (Menyanthaceae): Meso-American and West Indian Species. Brittonia. 21(4). 346–346. 29 indexed citations
17.
Jackson, R. C. & Robert Ornduff. (1968). Index to Plant Chromosome Numbers for 1966.. Systematic Zoology. 17(3). 336–336. 89 indexed citations
18.
Ornduff, Robert & Theodore J. Crovello. (1968). Numerical Taxonomy of Limnanthaceae. American Journal of Botany. 55(2). 173–173. 2 indexed citations
19.
Ornduff, Robert. (1966). A biosystematic survey of the goldfield genus lasthenia : (Compositae: helenieae). University of California Press eBooks. 50 indexed citations
20.
Ornduff, Robert. (1964). Biosystematics of Blennosperma (Compositae). Brittonia. 16(3). 289–289. 10 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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