Starting in December 2022, the editors of the International Plant Names Index (IPNI) have implemented a ‘new registration system for vascular plant names’. The research aims to upload newly published taxa in local journals, national floras, and monographs in Central Asia and adjacent regions to this database, as the international community is unaware of many taxa (subgenera, species, subspecies, varieties, etc.) newly published for science. The scientific and practical importance of this work is that it prevents the duplication of names for newly discovered taxa. In particular, some taxa have been repeatedly published under the same name. Research methodology: local and national publications of taxa newly discovered for science in different years. As a result of the research, a total of 44 taxa published between 1875 and 2026 (1 subgenus, 17 sections, 4 species, 7 subspecies, etc.) were entered into the International Plant Names Index (IPNI) database. It should be noted that, when entering the published taxa into the IPNI database, some taxa were directly corrected and completed in coordination with the IPNI editors. For instance, it is not Convolvulus sect. Pannosa Boiss., but Convolvulus sect. Pannosi Boiss.; not Dracocephalum ambiguus (Trautv.) Turdiboev & B.T.Drew, but Dracocephalum ambiguum (Trautv.) Turdiboev & B.T.Drew. The contribution of this research to the relevant field of knowledge is that information is being systematically and consistently entered and updated into the IPNI database, which is considered the most widely used and standardized nomenclatural resource. The practical significance of the results is that certain taxa, such as Horaninovia sogdiana E.N.Blagov., have not been published or cited in any database or in local and national floras.

The conservation of biodiversity and the stability of natural ecosystems are among the most pressing challenges of modern science, particularly in the context of declining plant diversity. The genus Elymus L. (Poaceae) represents a taxonomically complex and economically important group that remains insufficiently studied in Central Asia, including Uzbekistan. This study aims to conduct a comprehensive taxonomic and biogeographical analysis of Elymus species in the flora of Uzbekistan, clarify their systematic status, and assess their distribution patterns. The research is based on the critical revision of herbarium specimens preserved in the National Herbarium of Uzbekistan (TASH), supplemented by modern taxonomic concepts, literature review, and comparative analysis with international databases. Morphological evaluation and nomenclatural verification were applied to resolve taxonomic ambiguities. As a result, 11 species belonging to two sections (Anthosachne and Goulardia) were confirmed for the flora of Uzbekistan, while several taxa were excluded due to lack of reliable evidence. Significant taxonomic clarifications were proposed, including recognition of certain taxa at species rank and revision of synonymy. The study highlights ongoing debates in species delimitation within the genus. The findings contribute to the refinement of regional floristic composition and provide a reliable taxonomic framework for further botanical research. Practically, the results can be used in biodiversity conservation, ecological monitoring, and sustainable utilization of plant resources in Uzbekistan.

This paper presents a comprehensive analysis of the geographical distribution of representatives of the genus Ferula L. (Apiaceae) in Central Asia. The study is based on the integration of data from the "Conspectus of the Flora of Central Asia," herbarium collections, online platforms, and the author's own field materials. A database has been compiled, containing 105 species and 13,485 occurrence points.

The main patterns of species distribution were identified using cluster analysis (Euclidean distance) and geospatial analysis methods. Fourteen main geographical regions have been distinguished. It was determined that the greatest species diversity and level of endemism are characteristic of the Pamir-Alai and Western Tien Shan mountain systems, whereas the plains of Turan are distinguished by low diversity.

The obtained results confirm the existing botanical and geographical patterns and clarify the spatial differentiation of the flora of Central Asia, laying the foundation for further biogeographical and environmental research.

The article presents a new data on distribution of 36 species found in Eastern Kazakhstan are presented. The plants were collected in the East Kazakhstan Region (EKR) within the Altai Mountain Country (AMC) in the territories of the Katon-Karagay State Nature Park (KKSNPP), the Kabinsky cluster site of the Ontustik Altai Nature Reserve, the Zaisan Basin and the Kalbinsky Ridge. 10 species previously known for the flora of the East Kazakhstan region are indicated for the first time in the territory of the KKSNNP. Of these, the following are mentioned for the Katunsky ridge for the first time: Delphinium ukokense Serg., Carex altaica (Gorodkov) V.I. Krecz., Carex lachenalii Schkuhr, Eriophorum altaicum Meinsh., Taraxacum compactum Schischk., Thymus schischkinii Serg., Oxytropis frigida Kar. & Kir., Potentilla × chionea Soják, Vaccinium uliginosum L. New for the Tarbagatai ridge within the Katon-Karagay district of the East Kazakhstan region are Erigeron krylovii Serg., Klasea algida (Iljin) Hidalgo. In addition, new locations of rare species in the flora of the East Kazakhstan region are given, including those listed in the Red Book of the Republic of Kazakhstan. The labels of the studied samples are fully quoted; comments are given to all discussed species. The samples of the presented taxa are kept in the herbarium fund of the KKSNPP, duplicate materials have been deposited in the Herbarium of Altai State University (ALTB; Russia, Barnaul). 

Metasequoia glyptostroboides Hu & W.C. Cheng (dawn redwood) is a monotypic species of considerable scientific interest as a relict plant. This paper provides a brief characterization of the species based on published literature and presents historical information on its introduction into the Almaty Botanical Garden. Phenological observations were conducted according to the methodology for monitoring coniferous plants developed by V.G. Rubanik. The requirements for cultivation and maintenance practices are described.

The results of long-term cultivation experiments carried out in the Almaty Botanical Garden confirm the possibility of growing M. glyptostroboides in open-ground conditions. Recommendations for its cultivation under the sharply continental climate of Almaty are provided. A comparative analysis of the species introduction into botanical gardens of the CIS countries was also conducted. Winter hardiness was assessed using the N.K. Vekhov scale.

Experiments involving winter protection of seedlings demonstrated frost damage in both protected and unprotected plants. During the first years after planting, annual shoots did not fully lignify before autumn and were therefore damaged by winter frosts. The terminal leader failed to develop properly, while lateral shoots continued to grow, resulting in a shrubby crown form. Over time, M. glyptostroboides adapted to local climatic conditions, and the leading shoot ceased to suffer frost damage.

The experimental data obtained indicate a good capacity for vegetative propagation. Although winter hardiness increases with age, frost resistance remains relatively low, which limits the species’ suitability for widespread use in urban landscaping. Nevertheless, the species is of considerable value for botanical gardens and private collections as a representative of an ancient relict lineage. It is highly ornamental due to its dense, delicate crown architecture and its bright autumn foliage coloration.

The results of introduction studies on the biometric parameters of Persian walnut (Juglans regia L.) forms cultivated under the conditions of the Main Botanical Garden in Almaty are presented. Statistical modeling was employed to conduct a comparative analysis of long-term age-related changes. Independent variables were obtained in the form of minimum, maximum, and mean values for tree height, stem diameter, crown horizontal projection, and bole height across the collection. Confidence intervals and standard deviations were determined, and the relationships among the studied parameters were assessed through regression analysis, resulting in the derivation of regression equations and correlation coefficients.

The results of introduction studies on the biometric parameters of walnut (Juglans regia L.) forms under the conditions of the Main Botanical Garden of Almaty are presented. Based on statistical modeling, a comparative analysis of long-term age-related changes was carried out. Independent variables were obtained in the form of minimum, maximum, and mean collection values of tree height, trunk diameter, horizontal crown projection diameter, and bole height of tree forms. The confidence interval and standard deviation were determined, and the relationships between the studied parameters were assessed through regression equations and correlation coefficients.

The article is devoted to the analysis of the scientific legacy of the outstanding Kazakhstani botanist, Academician B.A. Bykov. His contribution to the systematics of the flora of Kazakhstan, the theory of dominants, and the classification of vegetation cover is considered. Particular attention is paid to the detailed typology of spruce forests of the Tien Shan and Zhetysu Alatau, developed by the author on the basis of phytocoenotic and ecosystem approaches. The groups of spruce forest associations identified by B.A. Bykov, their relationship with soil and hydrological conditions, and altitudinal zonation are described. The significance of his methodological framework (the study of edificators, biomorphs, and ecomorphs) for modern biodiversity monitoring and sustainable forest management in mountain regions is revealed.