Journal profile · Plant Sciences
Grana
ISSN 0017-3134 · eISSN 1651-2049 · Taylor and Francis Ltd. · NORWAY · Quarterly · Founded 1970
Grana: CAS Zone 4 · Biology (2025 upgraded edition); impact factor 1.02; hybrid open access; APC charged, amount not published; median 141 days to acceptance (29 articles, last 24 months); community-reported acceptance: easy; 22 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
Grana is published by Taylor and Francis Ltd. and is in Zone 4 of Biology in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Plant Diversity and Evolution, Plant and animal studies and Lichen and fungal ecology, together about 34.6% of its articles. Its main subfields are Ecology, Evolution, Behavior and Systematics. (generated from OpenAlex topic counts and CAS ranking data)
Grana is an international journal of palynology and aerobiology. Grana, originally published as Grana Palynologica, was founded in 1954 by Professor Gunnar Erdtman. It is published under the auspices of the Scandinavian Palynological Collegium (CPS) in affiliation with the International Association for Aerobiology (IAA). Grana publishes original papers, mainly on ontogony (morphology, and ultrastructure of pollen grains and spores of Eucaryota and their importance for plant taxonomy, ecology, phytogeography, paleobotany, etc.) and aerobiology. Aerobiology involves studies of airborne biological particles, such as pollen, spores, etc., and their launching, dispersal and final deposition. The significance of these particles in medicine (allergology) and plant pathology is of particular interest. All submitted manuscripts are subject to initial appraisal by the Editors, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. All peer review is single anonymized and submission is online via ScholarOne Manuscripts.
From the journal's Aims & Scope
Research area (LetPub): Plant Sciences
Editor-in-chief David J. CantrillPublisher website
Main research topics OpenAlex counts of recent articles; shares are approximate
- Plant Diversity and EvolutionAgricultural and Biological Sciences13.2%
- Plant and animal studiesAgricultural and Biological Sciences11.6%
- Lichen and fungal ecologyAgricultural and Biological Sciences9.9%
- Allergic Rhinitis and SensitizationMedicine9.6%
- Plant and Fungal Species DescriptionsBiochemistry, Genetics and Molecular Biology6.4%
- Plant Reproductive BiologyBiochemistry, Genetics and Molecular Biology6.2%
- Geology and Paleoclimatology ResearchEarth and Planetary Sciences5%
- Indoor Air Quality and Microbial ExposureEnvironmental Science4.7%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Biology Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Biology | Zone 4 |
| Minor | Plant Sciences | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Biology Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Biology | Zone 3 |
| Minor | Plant Sciences | Zone 3 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Biology Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Biology | Zone 4 |
| Minor | Plant Sciences | Zone 4 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
CAB AbstractsGeoRefCurrent ContentsPublisher website
Other: AGRICOLA, Abstracts on Hygiene and Communicable Diseases (CABI), Acid Rain Abstracts, Acid Rain Index, AgBiotech News & Information (CABI), AgBiotechNet (CABI), Agricultural Engineering Abstracts (CABI), Animal Breeding Abstracts (CABI), Animal Production Database (CABI), Animal Science (CABI), Bibliography of Agriculture, Bibliography of Systematic Mycology (CABI), Biocontrol News and Information, Biological Abstracts, Biology and Environmental Sciences, BIOSIS Previews (Clarivate Analytics), Botanical Pesticides (CABI), British Geological Literature, Current Advances in Ecological and Environmental Sciences, Current Awareness in Biological Sciences (CABS), Dairy Science Abstracts (CABI), Ecological Abstracts, Environmental Impact (CABI), Forestry Abstracts, Forest Production Abstracts, GEOBASE (Elsevier), Geographical Abstracts, Global Health (CABI), Leisure, Recreation, and Tourism Abstracts
As the journal's website lists them, not checked against each database; for Web of Science editions the records above apply.
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 1.02LetPub ·
- Impact factor (publisher) 2025
- 1.1Publisher website ·
- 5-year impact factor (publisher) 2025
- 1.1Publisher website ·
- CiteScore 2026-06
- 2.1LetPub ·
- CiteScore (publisher) 2025
- 2.1Publisher website ·
- SJR 2026-06
- 0.36LetPub ·
- SJR (publisher) 2025
- 0.36Publisher website ·
- SNIP 2026-06
- 0.71LetPub ·
- SNIP (publisher) 2025
- 0.71Publisher website ·
- h-index
- 34LetPub ·
- h-index
- 71OpenAlex ·
- i10-index
- 1,068OpenAlex ·
- 2-year mean citedness
- 1.43OpenAlex ·
- Self-citation rate
- 9.1%LetPub ·
- Share of gold OA articles
- 18.64%LetPub ·
Volume
- Articles per year
- 14LetPub ·
- Articles per year (publisher)
- 85Publisher website ·
- Downloads per year (publisher)
- 114,000Publisher website ·
Articles by year OpenAlex count · 1,957 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 3 | 2 | 0 |
| 2025 | 22 | 3 | 9 |
| 2024 | 26 | 12 | 64 |
| 2023 | 25 | 7 | 79 |
| 2022 | 33 | 6 | 120 |
| 2021 | 25 | 6 | 111 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with Crossref · to
141 daysMedian, submission to acceptance · P25–P75 111 days – 269 days
- Acceptance to online
- median 53 days (29 articles)
- Submission to online
- median 237 days
- Sample
- 29 articles with submission and acceptance dates (31 in the window); the latest was accepted on
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Other sources
- Average review time (community reports)
- over 12 weeksLetPub ·
- Average acceptance (community reports)
- EasyLetPub ·
- Acceptance rate (publisher)
- 48%Publisher website ·
- Submission to first decision
- 57 daysPublisher website ·
- First decision after review
- 78 daysPublisher website ·
- Peer review
- Single anonymous peer reviewPublisher website
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| Publisher website | Yes, amount not published | — | — |
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
Policy excerpts from the journal's websiteOpen access, Peer review
- Open access Open access
Grana is a hybrid open access journal that is part of the Taylor & Francis Open Select publishing program, giving you the option to publish open access. Publishing open access means that your article will be free to access online immediately on publication, increasing the visibility, readership, and impact of your research. Why choose open access? Increase the discoverability and readership of you…
Source ↗Publisher website ·- Peer review
Peer review process: initial appraisal by Editors, then peer review by independent, anonymous expert referees. Single anonymized review. Online submission via ScholarOne Manuscripts. Model summary
All submitted manuscripts are subject to initial appraisal by the Editors, and, if found suitable for further consideration, to peer review by independent, anonymous expert referees. All peer review is single anonymized and submission is online via ScholarOne Manuscripts.
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Taylor and Francis Ltd.
- Country or region
- NORWAY
- Language
- Multi-Language
- Frequency
- Quarterly
- Founded
- 1970
- ISSN
- 0017-3134
- Electronic ISSN
- 1651-2049
- Society / sponsor
- Collegium Palynologicum Scandinavicum
- Latest issue on the website
- Volume 64, Issue 5-6 (2025)
- Official links
- Journal homepage ↗OpenAlex
- Submission system ↗Publisher website
- Special issues ↗Publisher website
FAQ
Frequently asked questions about Grana
What CAS zone is Grana in?
In the 2025 upgraded edition of the CAS Journal Ranking, Grana is in Zone 4 of Biology, and in Zone 4 of the minor category Plant Sciences. In the 2026 Xinrui edition it is in Zone 3 of Biology. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Grana?
The latest impact factor listed by LetPub is 1.02; CiteScore 2.1, h-index 71.
How long does peer review take at Grana?
Based on the dates recorded on 29 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 141 days (interquartile range 111–269 days); authors report an average review time of over 12 weeks; the community-reported acceptance is “Easy”; the journal's website gives an acceptance rate of 48%. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Which databases index Grana?
According to LetPub and DOAJ records, Grana is indexed in SCIE and Scopus. The journal's website also lists CAB Abstracts, GeoRef and Current Contents; that list has not been checked against each database.
Is Grana open access, and what is the APC?
Grana is a hybrid journal. For open-access publication: APC charged, amount not published.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .