About this data

Sources and scope

Papers, authors and citations come from OpenAlex, about 15,600 aroid papers in all. Species names come from IPNI: some 9,300 names, each credited to the people who authored it. Where the full text of a paper or book is available, it is matched to its OpenAlex record and searched for the places it discusses.

Current accepted names and native ranges come from Aroidpedia’s genus records, Plants of the World Online, World Flora Online and GBIF. Portraits come from Wikidata and institutional pages.

Anyone with aroid papers or aroid species names to their credit is listed, about 1,300 researchers. OpenAlex sometimes splits one person into several profiles, such as Thomas B. Croat and Thomas Bernard Croat; profiles are merged when the names agree and they share co-authors or genera.

What the numbers mean

Aroid papers

Papers about aroids with the researcher among the authors. They cover aroid work only, not a whole career.

Aroid h-index

An h-index of 17 means 17 of the researcher’s aroid papers have each been cited at least 17 times. Citation counts come from OpenAlex.

Influence

A 0–100 score from the citations among the listed researchers. A citation from a widely cited researcher carries more weight; the most influential researcher scores 100.

Species described

Araceae species names in IPNI with the researcher in the author team.

Fields

Systematics & biology, Duckweed, Horticulture & crops, and Food & chemistry are broad groups based on paper titles. They are a rough guide, not a classification.

Places in Research geography

A paper counts for a place when its title or abstract names it, or when its full text names it at least twice outside the reference list and author addresses. World-wide works, such as encyclopaedias and family monographs, count only by their title and abstract. A place that spans several countries, such as Borneo, counts for every unit within it.

Species described from here follows each species’ native range, from Aroidpedia’s genus records first and Plants of the World Online second. The Map shows papers about a place, not expeditions or fieldwork there.

Names

A species described under a name that is now a synonym appears under its current accepted name, with the original noted as described as. Aroidpedia’s genus records take precedence over Plants of the World Online; World Flora Online and GBIF cover names it does not list.

Limits and updates

Older literature is thinly covered in OpenAlex. Authors are matched automatically, so a person can occasionally appear twice, or two people as one. A paper that names no place in its title, abstract or text does not appear in Research geography.

The data refreshes automatically every month, around the 25th.