04409514-afd5-47ed-9d84-b99ef2aa051a https://ipt.gbif.pl/resource?r=rheum_seed_morph_kazakhstan_2023 Aidar A. Sumbembayev Department of Biodiversity and Bioresources, Al-Farabi Kazakh National University

Al-Farabi Avenue 71 Almaty 50040 KZ

aydars@list.ru https://orcid.org/0000-0003-0682-9162 Aidar A. Sumbembayev Altai Botanical Garden

Ermakov St. Ridder 71300 KZ

aydars@list.ru https://orcid.org/0000-0003-0682-9162 Olga A. Lagus Altai Botanical Garden

Ermakov St. Ridder 71300 KZ

Sławomir Nowak Department of Plant Taxonomy and Nature Conservation, Faculty of Biology, University of Gdansk Data and Collections Manager, Assistant Professor

Wita Stwosza 59 Gdansk 80-308 PL

slawomir.nowak@ug.edu.pl https://orcid.org/0000-0002-0496-1023 Sławomir Nowak Department of Plant Taxonomy and Nature Conservation, Faculty of Biology, University of Gdansk Data and Collections Manager, Assistant Professor

Wita Stwosza 59 Gdansk 80-308 PL

slawomir.nowak@ug.edu.pl https://orcid.org/0000-0002-0496-1023 Joanna Korybut-Orlowska University of Gdansk, Faculty of Biology, Herbarium Universitatis Gedanensis Data and Collections Manager

Wita Stwosza 59 Gdansk Pomerania 80-308 PL

datasteward.bio@ug.edu.pl https://herbarium.ug.edu.pl/ https://orcid.org/0000-0002-3715-3866 editor Sławomir Nowak Department of Plant Taxonomy and Nature Conservation, Faculty of Biology, University of Gdansk Data and Collections Manager, Assistant Professor

Wita Stwosza 59 Gdansk 80-308 PL

slawomir.nowak@ug.edu.pl https://orcid.org/0000-0002-0496-1023 author Aidar A. Sumbembayev Department of Biodiversity and Bioresources, Al-Farabi Kazakh National University

Al-Farabi Avenue 71 Almaty 50040 KZ

aydars@list.ru https://orcid.org/0000-0003-0682-9162 author Olga A. Lagus Altai Botanical Garden

Ermakov St. Ridder 71300 KZ

author Aidar A. Sumbembayev Department of Biodiversity and Bioresources, Al-Farabi Kazakh National University

Al-Farabi Avenue 71 Almaty 50040 KZ

aydars@list.ru https://orcid.org/0000-0003-0682-9162 contentProvider Aidar A. Sumbembayev Department of Biodiversity and Bioresources, Al-Farabi Kazakh National University

Al-Farabi Avenue 71 Almaty 50040 KZ

aydars@list.ru https://orcid.org/0000-0003-0682-9162 principalInvestigator 2026-03-27 eng This dataset presents morphometric measurements of seeds from seven Rheum L. (Polygonaceae) species collected across Kazakhstan. Seed dimensions, mass, and morphological characteristics were analyzed to identify taxonomically informative traits and assess variation across ecological and geographical contexts. The data support species identification, provide insights into intraspecific variability, and can inform taxonomic and conservation studies of Rheum species in Central Asia. These data are derived from the published study: Sumbembayev et al., 2023, Biodiversitas Journal of Biological Diversity, 24(9), 4677–4692. Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml Sumbembayev, A. A., Lagus, O. A., & Nowak, S. (2023). Seed morphometry of Rheum L.(Polygonaceae) species from Kazakhstan and its implications in taxonomy and species identification. Biodiversitas: Journal of Biological Diversity, 24(9), doi.org/10.13057/biodiv/d240908. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License. Multiple locations across Kazakhstan, including steppe, mountainous, and semi-arid regions. Coordinates as provided in Sumbembayev et al., 2023. 51.433 86.233 50.441 41.722 notPlanned Sławomir Nowak Department of Plant Taxonomy and Nature Conservation, Faculty of Biology, University of Gdansk Data and Collections Manager, Assistant Professor

Wita Stwosza 59 Gdansk 80-308 PL

slawomir.nowak@ug.edu.pl https://orcid.org/0000-0002-0496-1023 1. Collect seeds from natural populations. 2. Clean and dry seeds. 3. Measure seed length, width, and mass. 4. Record data and analyze morphometric variability. Morphometric analysis of seeds from multiple Rheum species across Kazakhstan; focus on ecological and geographical variation. Seeds collected from natural populations in steppe, mountain, and semi-arid habitats; measured for dimensions, mass, and morphology. Measurements repeated for accuracy; only fully matured, undamaged seeds included. 2026-03-26T13:09:28.927+00:00 dataset 04409514-afd5-47ed-9d84-b99ef2aa051a/v1.1.xml