Thomas G. Lammers

1.1k total citations
70 papers, 865 citations indexed

About

Thomas G. Lammers is a scholar working on Ecology, Evolution, Behavior and Systematics, Molecular Biology and Plant Science. According to data from OpenAlex, Thomas G. Lammers has authored 70 papers receiving a total of 865 indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Ecology, Evolution, Behavior and Systematics, 35 papers in Molecular Biology and 35 papers in Plant Science. Recurrent topics in Thomas G. Lammers's work include Plant Diversity and Evolution (51 papers), Plant and Fungal Species Descriptions (34 papers) and Plant and animal studies (30 papers). Thomas G. Lammers is often cited by papers focused on Plant Diversity and Evolution (51 papers), Plant and Fungal Species Descriptions (34 papers) and Plant and animal studies (30 papers). Thomas G. Lammers collaborates with scholars based in United States, Spain and Chile. Thomas G. Lammers's co-authors include C. Edward Freeman, Mary E. Cosner, Robert K. Jansen, Tod F. Stuessy, Robert R. Wise, Charles A. Butterworth, J. Hugo Cota‐Sánchez, Nancy Hensold, Robert S. Wallace and Patrícia Pacheco and has published in prestigious journals such as American Journal of Botany, Taxon and Annals of the Missouri Botanical Garden.

In The Last Decade

Thomas G. Lammers

65 papers receiving 700 citations

Peers

Thomas G. Lammers
Comparison fields: 5 of 40
  • Ecology, Evolution, Behavior and Systematics 772
  • Molecular Biology 425
  • Plant Science 394
  • Food Science 86
  • Nature and Landscape Conservation 66
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Citations per field, relative to Thomas G. Lammers
Thomas G. Lammers · 1×
Citations per year, relative to Thomas G. Lammers
Thomas G. Lammers · 1×

Countries citing papers authored by Thomas G. Lammers

Since Specialization
Citations

This map shows the geographic impact of Thomas G. Lammers'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 Thomas G. Lammers with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Thomas G. Lammers more than expected).

Fields of papers citing papers by Thomas G. Lammers

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Thomas G. Lammers. 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 Thomas G. Lammers. The network helps show where Thomas G. Lammers may publish in the future.

Co-authorship network of co-authors of Thomas G. Lammers

This figure shows the co-authorship network connecting the top 25 collaborators of Thomas G. Lammers. A scholar is included among the top collaborators of Thomas G. Lammers 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 Thomas G. Lammers. Thomas G. Lammers 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
# Work Indexed citations
1
A synopsis of Codonopsis subg. Pseudocodonopsis (Campanulaceae: Campanuloideae), with description of a new species of uncertain provenance.
3
2 2
3 39
4
Revision of Delissea (Campanulaceae-Lobelioideae)
9
5
World Checklist and Bibliography of Campanulaceae
101
6
Plant Systematics today: all our eggs in one basket?
11
7
Triodanis Raf. (Campanulaceae: Campanuloideae), a new generic record for the flora of Taiwan
2
8 12
9
Revision of the endemic Asian genus Peracarpa (Campanulaceae: Campanuloideae) via numerical phenetics
2
10
Circumscription of Codonopsis and the allied genera Campanumoea and Leptocodon (Campanulaceae: Campanuloideae). I. Palynological data
8
11 1
12 1
13 4
14
Taxonomy of Complaya, Elaphandra, Iogeton, Jefea, Wamalchitamia, Wedelia, Zexmenia, and Zyzyxia (Compositae-Heliantheae-Ecliptinae)
1
15
The Vascular Flora of Roggman Boreal Slopes Preserve, Clayton County, Iowa
2
16
A Checklist of the Vascular Flora of Lee County, Iowa
1
17
The vascular flora of Starr's Cave State Preserve.
0
18
A Checklist of the Aquatic and Wetland Vascular Plants of Iowa: II. Monocotyledons, Plus a Summary of the Geographic and Habitat Distribution of All Aquatic and Wetland Species in Iowa
5
19
Komunikasi dan media
0
20
A Checklist of the Aquatic and Wetland Vascular Plants of Iowa: I. Ferns, Fern Allies, and Dicotyledons
6

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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