Norris H. Williams

4.7k citations

72 papers · 3.5k indexed · 2 hit papers · h-index 30

Ecology, Evolution, Behavior and Systematics top 0.2%
Molecular Biology top 5%
Plant Science top 2%
Insect Science top 1%
Genetics top 5%

Co-authors: W. Mark Whitten Calaway H. Dodson Kurt M. Neubig Harold G. Hills Robert L. Dressler Lorena Endara Hector F. Castro Andrew Ogram
Topics: Plant and animal studies (52 papers)Plant and Fungal Species Descriptions (32 papers)Plant Diversity and Evolution (30 papers)
Cited by: Ecology, Evolution, Behavior and Systematics Insect Science Plant Science
Journals: Science PLoS ONE Evolution
Partner nations: United States Costa Rica Brazil

In The Last Decade

Norris H. Williams

71 papers receiving 3.3k 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.

Orchid phylogenomics and multiple drivers of their extraordinary diversification

2015 379 citations Thomas J. Givnish, Daniel Spalink et al. profile →
Biologically Active Compounds in Orchid Fragrances

1969 336 citations Robert L. Dressler, Harold G. Hills et al. profile →

Peers

Countries citing papers authored by Norris H. Williams

Since Specialization

Citations

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

Fields of papers citing papers by Norris H. Williams

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Norris H. Williams. 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 Norris H. Williams. The network helps show where Norris H. Williams may publish in the future.

Co-authorship network of co-authors of Norris H. Williams

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Orchid historical biogeography, diversification, Antarctica and the paradox of orchid dispersal 2016 ·Journal of Biogeography ·Thomas J. Givnish,Daniel Spalink,Mercedes Ames,Stephanie P. Lyon,Steven Hunter,Alejandro Zuluaga,(unknown),(unknown),(unknown),Mark A. Clements,Mary T. K. Arroyo,Lorena Endara,Ricardo Kriebel,Norris H. Williams,Kenneth M. Cameron	127
2	Seven New Complete Plastome Sequences Reveal Rampant Independent Loss of the ndh Gene Family across Orchids and Associated Instability of the Inverted Repeat/Small Single-Copy Region Boundaries 2015 ·PLoS ONE ·Hyoung Tae Kim,Jung Sung Kim,Michael J. Moore,Kurt M. Neubig,Norris H. Williams,W. Mark Whitten,Joo‐Hwan Kim	106
3	An Overview of Veratrum s.l. (Liliales: Melanthiaceae) and an Infrageneric Phylogeny Based on ITS Sequence Data 2009 ·Systematic Botany ·Wendy B. Zomlefer,W. Mark Whitten,Norris H. Williams,Walter S. Judd	28
4	Floral convergence in Oncidiinae (Cymbidieae; Orchidaceae): an expanded concept of Gomesa and a new genus Nohawilliamsia 2009 ·Annals of Botany ·Mark W. Chase,Norris H. Williams,Aparecida Donisete de Faria,Kurt M. Neubig,Maria do Carmo Estanislau do Amaral,W. Mark Whitten	76
5	Molecular phylogenetics and the evolution of fruit and leaf morphology of Dichaea (Orchidaceae: Zygopetalinae) 2009 ·Annals of Botany ·Kurt M. Neubig,Norris H. Williams,W. Mark Whitten,Franco Pupulin	15
6	Generic realignments in Maxillariinae (Orchidaceae) 2007 ·Lankesteriana ·Mario A. Blanco,Germán Carnevali,(unknown),Rodrigo B. Singer,Samantha Koehler,Norris H. Williams,Isidro Ojeda,Kurt M. Neubig,Lorena Endara	30
7	Molecular phylogenetics of Maxillaria and related genera (Orchidaceae: Cymbidieae) based on combined molecular data sets 2007 ·American Journal of Botany ·W. Mark Whitten,Mario A. Blanco,Norris H. Williams,Samantha Koehler,Germán Carnevali,Rodrigo B. Singer,Lorena Endara,Kurt M. Neubig	72
8	Generic realignments in Maxillariinae (Orchidaceae) 2007 ·Lankesteriana ·Mario A. Blanco,Germán Carnevali,(unknown),Rodrigo B. Singer,Samantha Koehler,Norris H. Williams,Isidro Ojeda,Kurt M. Neubig,Lorena Endara	56
9	Molecular phylogenetics of Vandeae (Orchidaceae) and the evolution of leaflessness 2006 ·American Journal of Botany ·Barbara S. Carlsward,W. Mark Whitten,Norris H. Williams,Benny Bytebier	93
10	A SIMPLE AND SAFE METHOD FOR RAPID DRYING OF PLANT SPECIMENS USING FORCED-AIR SPACE HEATERS 2006 ·Mario A. Blanco,W. Mark Whitten,Darin S. Penneys,Norris H. Williams,Kurt M. Neubig,Lorena Endara	15
11	Infrageneric phylogeny of Schoenocaulon (Liliales: Melanthiaceae) with clarification of cryptic species based on ITS sequence data and geographical distribution 2006 ·American Journal of Botany ·Wendy B. Zomlefer,W. Mark Whitten,Norris H. Williams,Walter S. Judd	20
12	Phylogenetic relationships of Scaphyglottis and related genera (Laeliinae: Orchidaceae) based on nrDNA ITS sequence data 2004 ·Brittonia ·Robert L. Dressler,W. Mark Whitten,Norris H. Williams	14
13	Small Bones from Dried Mammal Museum Specimens as a Reliable Source of DNA 2001 ·BioTechniques ·(unknown),W. Mark Whitten,Norris H. Williams	35
14	Subtribal and generic relationships of Maxillarieae (Orchidaceae) with emphasis on Stanhopeinae: combined molecular evidence 2000 ·American Journal of Botany ·W. Mark Whitten,Norris H. Williams,Mark W. Chase	167
15	Phylogenetic Analysis of Pasteuria penetrans by 16S rRNA Gene Cloning and Sequencing. 1999 ·PubMed ·Janet Anderson,James F. Preston,Dennis W. Dickson,T. E. Hewlett,Norris H. Williams,J. E. Maruniak	30
16	Fragrance cycle of Clowesia rosea 1990 ·Harold G. Hills,Norris H. Williams	6
17	Function of glandular secretions in fragrance collection by male euglossine bees (Apidae: Euglossini) 1989 ·Journal of Chemical Ecology ·W. Mark Whitten,Allen M. Young,Norris H. Williams	55
18	Occurrence of ipsdienol in floral fragrances 1988 ·Phytochemistry ·W. Mark Whitten,Harold G. Hills,Norris H. Williams	29
19	Trans-carvone oxide, a monoterpene epoxide from the fragrance of Catasetum 1985 ·Phytochemistry ·Niels Lindquist,Merle A. Battiste,W. Mark Whitten,Norris H. Williams,Lucjan Strękowski	20
20	POLLEN MORPHOLOGY OF THE CHLORAEINAE (ORCHIDACEAE: DIURIDEAE) AND RELATED SUBTRIBES 1981 ·American Journal of Botany ·James D. Ackerman,Norris H. Williams	16

About Norris H. Williams

Norris H. Williams is a scholar working on Ecology, Evolution, Behavior and Systematics, Plant Science and Insect Science, having authored 72 papers that have together received 3.5k indexed citations. Recurring topics across this work include Plant and animal studies (52 papers), Plant and Fungal Species Descriptions (32 papers) and Plant Diversity and Evolution (30 papers). The work is most often cited by research in Ecology, Evolution, Behavior and Systematics (2.7k citations), Insect Science (501 citations) and Plant Science (1.4k citations). Norris H. Williams has collaborated with scholars based in United States, Costa Rica and Brazil. Frequent co-authors include W. Mark Whitten, Calaway H. Dodson, Kurt M. Neubig, Harold G. Hills, Robert L. Dressler, Lorena Endara, Hector F. Castro, Andrew Ogram, Mark W. Chase and Ralph M. Adams. Their work appears in journals such as Science, PLoS ONE and Evolution.

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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