T. M. Barkley

1.4k total citations · 2 hit papers
27 papers, 1.2k citations indexed

About

T. M. Barkley is a scholar working on Plant Science, Molecular Biology and Ecology, Evolution, Behavior and Systematics. According to data from OpenAlex, T. M. Barkley has authored 27 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Plant Science, 10 papers in Molecular Biology and 10 papers in Ecology, Evolution, Behavior and Systematics. Recurrent topics in T. M. Barkley's work include Botany, Ecology, and Taxonomy Studies (17 papers), Plant Toxicity and Pharmacological Properties (10 papers) and Botanical Research and Chemistry (6 papers). T. M. Barkley is often cited by papers focused on Botany, Ecology, and Taxonomy Studies (17 papers), Plant Toxicity and Pharmacological Properties (10 papers) and Botanical Research and Chemistry (6 papers). T. M. Barkley collaborates with scholars based in United States. T. M. Barkley's co-authors include Melinda F. Denton, J. P. Herberger, Donald L. Plucknett, L. G. Holm, J. V. Pancho, Edward G. Voss, Arthur Cronquist, R. L. McGregor, Michael O. Dillon and Thomas W. McGovern and has published in prestigious journals such as Taxon, The Botanical Review and Annals of the Missouri Botanical Garden.

In The Last Decade

T. M. Barkley

27 papers receiving 872 citations

Hit Papers

align trajectories

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.

Flora of the Great Plains

1987 474 citations T. M. Barkley et al. Taxon profile →
A Geographical Atlas of World Weeds.

1980 321 citations T. M. Barkley, L. G. Holm et al. Brittonia profile →

Peers

T. M. Barkley

PS

EEBS

NLC

ECOLO

MB

Marshall C. Johnston United States

Philip A. Munz United States

A. R. Clapham United Kingdom

Noel H. Holmgren United States

C. Leo Hitchcock United States

Harry E. Ahles United States

W. B. Turrill United Kingdom

Merritt Lyndon Fernald

Oleg Polunin United States

E. F. Warburg

Marshall C. Johnston United States

T. M. Barkley

789 ×1.0

PS

567 ×1.4

EEBS

275 ×0.8

NLC

363 ×1.1

ECOLO

187 ×1.3

MB

Citations per year, relative to T. M. Barkley T. M. Barkley (= 1×) peers Marshall C. Johnston

Countries citing papers authored by T. M. Barkley

Since Specialization

Citations

This map shows the geographic impact of T. M. Barkley'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 T. M. Barkley with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites T. M. Barkley more than expected).

Fields of papers citing papers by T. M. Barkley

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by T. M. Barkley. 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 T. M. Barkley. The network helps show where T. M. Barkley may publish in the future.

Co-authorship network of co-authors of T. M. Barkley

This figure shows the co-authorship network connecting the top 25 collaborators of T. M. Barkley. A scholar is included among the top collaborators of T. M. Barkley 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 T. M. Barkley. T. M. Barkley is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

McGovern, Thomas W. & T. M. Barkley. (2001). Botanical briefs: prickly pear cactus--Opuntia Miller.. PubMed. 68(3). 188–90. 1 indexed citations

2.

McGovern, Thomas W. & T. M. Barkley. (1999). Botanical briefs: Peruvian lily--Alstroemeria (L.) spp.. PubMed. 63(3). 137–8. 2 indexed citations

3.

McGovern, Thomas W. & T. M. Barkley. (1998). Botanical briefs: leafy spurge--Euphorbia esula l.. PubMed. 62(5). 221–2. 1 indexed citations

4.

Barkley, T. M. & B. L. Turner. (1989). New species, names and combination in Senecio sect. Palmatinervii (Asteraceae). Phytologia. 67. 390–393. 1 indexed citations

5.

Barkley, T. M.. (1988). Variation among the Aureoid Senecios of North America: A geohistorical interpretation. The Botanical Review. 54(1). 82–105. 21 indexed citations

6.

Barkley, T. M. & Edward G. Voss. (1986). Michigan Flora, Part II-Dicots (Saururaceae-Cornaceae).. Bulletin of the Torrey Botanical Club. 113(1). 60–60. 68 indexed citations

7.

Barkley, T. M.. (1985). GENERIC BOUNDARIES IN THE SENECIONEAE. Taxon. 34(1). 17–21. 11 indexed citations

8.

Barkley, T. M. & Michael O. Dillon. (1985). A Systematic Study of Flourensia (Asteraceae, Heliantheae).. Bulletin of the Torrey Botanical Club. 112(4). 457–457. 15 indexed citations

9.

Barkley, T. M., et al.. (1984). Field Guide to the Common Weeds of Kansas.. Brittonia. 36(1). 80–80. 4 indexed citations

10.

Barkley, T. M. & Arthur Cronquist. (1980). Vascular Flora of the Southeastern United States. Volume 1, Asteraceae.. Brittonia. 32(1). 103–103. 6 indexed citations

11.

Barkley, T. M., L. G. Holm, J. V. Pancho, J. P. Herberger, & Donald L. Plucknett. (1980). A Geographical Atlas of World Weeds.. Brittonia. 32(2). 127–127. 321 indexed citations breakdown →

12.

Barkley, T. M.. (1980). Taxonomic Notes on Senecio Tomentosus and Its Allies (Asteraceae). Brittonia. 32(3). 291–291. 5 indexed citations

13.

Barkley, T. M., et al.. (1978). Atlas of the Flora of the Great Plains. Taxon. 27(2/3). 277–277. 115 indexed citations

14.

Barkley, T. M.. (1976). TWO NOMENCLATURAL CHANGES IN SENECIO. Biodiversity Heritage Library (Smithsonian Institution). 1 indexed citations

15.

Woodson, Robert E., Robert W. Schery, W. G. D'Arcy, et al.. (1975). Flora of Panama. Part IX. Family 184. Compositae. Annals of the Missouri Botanical Garden. 62(4). 835–835. 15 indexed citations

16.

Barkley, T. M., et al.. (1974). A New Senecio (Compositae) from California. Brittonia. 26(2). 106–106. 1 indexed citations

17.

Barkley, T. M.. (1968). Taxonomy of Senecio multilobatus and Its Allies. Brittonia. 20(3). 267–267. 12 indexed citations

18.

Barkley, T. M.. (1966). A review of the origin and development of the florists’ cineraria,Senecio cruentus. Economic Botany. 20(4). 386–395. 3 indexed citations

19.

Barkley, T. M.. (1965). J. B. Norton's Grass Investigation Trip through Central Kansas in 1898. Transactions of the Kansas Academy of Science. 68(3). 363–363. 3 indexed citations

20.

Barkley, T. M.. (1962). A Revision of Senecio aureus Linn. and Allied Species. Transactions of the Kansas Academy of Science. 65(3). 318–318. 27 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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