Ta'lim innovatsiyasi va integratsiyasi
49-son_1-to’plam_Iyul -2025
218
ISSN:3030-3621
NALYSIS OF HERBARIUM SPECIMENS OF ASTRAGALUS
SIEVERSIANUS STORED IN THE NATIONAL HERBARIUM (TASH) OF
UZBEKISTAN FROM THE FLORA OF THE FERGANA VALLEY
Umaraliyeva Shodiyona Farhodjon girl
Namangan State University, the 3rd year
student of the direction of
biology education
Email: shodiyononumaraliyeva738@gmail.com,
Phone: +9989938910413
ANNOTATION:
This article presents a morphological analysis of
Astragalus
sieversianus Pall
., based on 25 herbarium specimens collected from the Fergana Valley
and preserved at the National Herbarium of Uzbekistan (TASH) between 1938 and
2018. Key traits including leaf morphology, floral structures, fruit shape, and seed
characteristics were examined. Results show a shift in distribution from lowlands to
foothill regions in recent decades, possibly due to anthropogenic impact and
environmental changes. Some morphological variability suggests the existence of local
ecotypes. The study highlights the importance of herbarium data in species monitoring
and indicates the need for further molecular research for conservation planning.
KEYWORDS:
Astragalus sieversianus, Fabaceae,
herbarium, Fergana
FARGʻONA VODIYSI FLORASINING OʻZBEKISTON MILLIY
GERBARIYSI (TASH) FONDIDA SAQLANAYOTGAN
ASTRAGALUS
SIEVERSIANUS
TURIGA OID GERBERIY NAMUNALAR TAHLILI
ANNOTATSIYA:
Ushbu maqolada
Astragalus sieversianus Pall.
turining
O‘zbekiston milliy gerbariysi (TASH) fondida saqlanayotgan 1938–2018 yillar
oralig‘ida Farg‘ona vodiysidan yig‘ilgan 25 ta gerbariy namunasi asosida morfologik
tahlili o‘tkazildi. O‘simlikning barg shakli, gul tuzilmasi, meva va urug‘ xususiyatlari
hamda populyatsiyalar o‘rtasidagi morfologik tafovutlar o‘rganildi. Tadqiqot
natijalariga ko‘ra, so‘nggi yillarda o‘simlikning tarqalish areali tog‘ etaklariga
siljiganligi, bu esa antropogen bosim va ekologik o‘zgarishlar bilan bog‘liq bo‘lishi
mumkinligi aniqlangan. Shuningdek, ayrim morfologik belgilarning o‘zgaruvchanligi
lokal ekotiplarga mansublik ehtimolini ko‘rsatmoqda. Mazkur tahlil tur darajasidagi
saqlanish holatini baholash hamda genetik tadqiqotlar zarurligini asoslaydi.
KALIT SO‘ZLAR:
Astragalus sieversianus, Fabaceae
, herbarium, Fergana
1
. INTRODUCTION
Ta'lim innovatsiyasi va integratsiyasi
49-son_1-to’plam_Iyul -2025
219
ISSN:3030-3621
Astragalus sieversianus Pall.
is a perennial semi-shrub belonging to the
Fabaceae
family. It is widely distributed across Central Asia, including the stony, arid,
and steppe zones of Uzbekistan, and plays a vital geobotanical role in the
ecosystem[1,2].
The Fergana Valley is distinguished by its rich floristic diversity, and A.
sieversianus is one of the ecologically significant species found in the region. The
National Herbarium of Uzbekistan (TASH), located at the Institute of Botany under
the Academy of Sciences, contains historically and geographically valuable specimens
of this species[3]. A modern analysis of these herbarium records provides essential data
for flora monitoring, population dynamics assessment, and conservation planning[4].
2. MATERIALS AND METHODS
2.1. Data Sources: The study utilized all available Astragalus sieversianus
specimens preserved in the TASH herbarium as of 2023–2024. Morphological
characteristics, collection locations and dates, and collector information were recorded.
2.2. Morphological Analysis: For each specimen, the following features were
analyzed and documented:
Stem habit (erect, spreading), leaf shape and length, flower and fruit
morphology, pod shape and seed count, external color and pigmentation.
2.3. Distribution and Taxonomic Variations: The geographic origins of the
specimens were mapped, and interregional morphological variants from Namangan,
Andijan, and Fergana provinces were compared to assess taxonomic divergence.
3. RESULTS AND DISCUSSION
3.1. Overview of Herbarium Specimens: A total of 25 specimens of A.
sieversianus were found in the TASH herbarium, of which: 12 originated from
Namangan (Chust, Pop, Kosonsoy), 8 from Andijan, 5 from Fergana Province.
The earliest specimen dates back to 1938 (collected by A.A. Yunusov), and the
most recent was collected in 2018[5].
3.2. Morphological Differentiation: The analyzed specimens showed stem
lengths between 35–70 cm, pods with 3–6 seeds, and compound paripinnate leaves
with two pairs of leaflets. Some samples from Fergana and Andijan showed increased
pigmentation in sepals and higher stem pubescence, indicating high ecological
plasticity[6].
3.3. Distribution Trends: Earlier collections (1930s–1960s) were mostly from
central areas of the valley (e.g., Oltinkul, Shahrixon), whereas from the 1980s onward,
samples were increasingly collected from higher and drier zones (e.g., Chodak, Pop).
This suggests a habitat shift toward foothills due to growing anthropogenic
pressures[7].
3.4. Conservation and Taxonomic Insights: Certain morphological distinctions
(e.g., calyx length, pod shape, pigmentation) suggest the presence of a local variant
Ta'lim innovatsiyasi va integratsiyasi
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ISSN:3030-3621
possibly close to Astragalus sieversianus var. minor. However, molecular and ecotypic
studies are necessary for a formal conclusion.
CONCLUSION
The herbarium specimens of Astragalus sieversianus preserved in the TASH
collection represent a valuable resource for floristic and ecological monitoring in the
Fergana Valley. Key conclusions are:
-
The species exhibits notable temporal and spatial variation across
the valley;
-
It shows high morphological plasticity, reflecting adaptive
potential;
-
Distribution shifts suggest habitat changes under anthropogenic
influence.
Further molecular-genetic analysis and the development of both in-situ and ex-
situ conservation strategies are recommended. The herbarium data offer a scientific
foundation for such initiatives.
REFERENCES
1.
Kamelin R.V. (1973). Flora and Vegetation of Central Asia. Nauka, Leningrad.
2.
Tojibaev K.S. et al. (2020). “Ecological characteristics of endemic plant
distributions.” Turczaninowia, 23(2): 112–129.
3.
TASH Herbarium Collection, Institute of Botany, Academy of Sciences of the
Republic of Uzbekistan. www.botanika.uz
4.
Sennikov A.N. (2014). “The role of herbarium data in plant conservation.”
Biodiversity Data Journal, 2: e1084.
5.
TASH inv. no. 164-185. Astragalus sieversianus specimens (1938–2018).
6.
Akramova U., Karimov M. (2019). “Morphological plasticity in Central Asian
Astragalus species.” UzBotJournal, 3(2): 78–86.
7.
Kurbanov D. et al. (2022). “Legume diversity changes in the flora of the
Fergana Valley.” NamSU Scientific Journal, 4(1): 45–59.
