<p>This monograph can be divided into three parts. The first part covers Juncus, Liliaceae and other groups, and lists the classification information of each genus and species in detail. For example, the genus Juncus includes more than 100 species such as J. globiceps and J. tenageia; the Liliaceae includes Veratrum, Gagea, etc., such as G. minima), G. granulosa), etc., some species have morphological descriptions, such as linear leaves and conical inflorescences. The second part describes the morphological details of each plant, such as Rhynchospora plants 15-40 cm high and linear leaves; Liliaceae plants have many bulbs, with 6 tepals and 6 stamens. In terms of distribution, most species live in grasslands, river banks, mountains and other habitats, such as the unique Junggar top ice flower (G. dshungarica) is found in arid grasslands, and the Siberian ice flower (G. sibirica) is distributed in the Altai Territory. The third part describes the economic and ecological value of plants. For example, the roots of Veratrum plants can be used as medicine, and some species of Verticula are ornamental flowers. Ecologically, Juncus plants are often used for wetland restoration. Liliaceae plants are an important part of the grassland ecosystem. Some species are early spring flowering plants, providing resources for pollinators. </p>