Monocotyledonous Plants of the Lower Surkhan Natural Geographical Region Flora

Aim: Determining the species composition of monocotyledonous plants distributed in the flora of Lower Surkhan region.

Place and Duration of Study: National University of Uzbekistan named after Mirzo Ulugbek. The research was carried out in March, April, May and June 2022 in 6 districts of Surkhandarya region.

Methodology: More than 1,500 herbarium specimens from all parts of the region were collected to identify the monocotyledonous plants of Lower Surkhan flora.

Results: Amaryllidaceae, Convolvulaceae, Iridaceae, Liliaceae, Poaceae are polymorphic monocot families in the Lower Surkhan flora. This list includes families with more than 5 species. In this list, Poaceae is only part of the polymorphic families of the general flora of Lower Surkhan. These families make up 49.5% of monocots in the Lower Surkhan flora. There are 8 families with 2, 3 and 4 types and 1 family with only one type. Polymorphic genera include Allium L., Convolvulus L., Gagea Salisb., Bromus L, Iris Tourn. etc. were introduced They make up 28.3% of all monocots. The first five categories alone have 32 species.

Conclusion: During our floristic research in the Lower Surkhan region, the species composition of monocotyledonous plants was determined. According to the obtained results, it was determined that the flora of Lower Surkhan consists of 12 families, 53 genera and 113 species of monocotyledonous plants.