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What are the geographical distributions of Labiatae?
It is distributed in the west of Xilin Gol grassland in Inner Mongolia, north-central Ningxia, northwest Shaanxi, west Gansu, Xinjiang and other vast arid areas. The Soviet Union, Siberia and Mongolia also have it.

Biological and ecological characteristics

Rabdosia crassipes is a kind of dwarf weed, with few branches on the ground, slender stems and a thickness of only about 2mm, but its base lignified earlier. Its roots are much thicker than stems, and the diameter of the root neck can reach 2cm, and the old root neck is meristematic. The taproot and lateral root are deeply planted in the soil to expand the absorption range, and the ratio of stem depth to root depth is about 1∶3. Root types of grassland plants in Inner Mongolia, 1986, Inner Mongolia People's Publishing House. .

Rabdosia rubescens blooms in June-August and bears fruit in September-65438+1October.

It is a typical xerophyte and a common companion species of desert grassland vegetation. It also enters the typical grassland area to the east, and can be distributed to the east of the desert belt to the west. I like coarse bone soil and sandy soil born in sand or gravel.

Although it is not the dominant species in grassland vegetation, it is quite persistent and distributed in various communities. According to the investigation, there is a community of Labiatae plants in Ordos area. Its dominant components are mainly Artemisia frigida, Stipa breviflora, Stipa arenaria, Stipa krylovii, Stipa Ili, Cryptomeria, Caragana angustifolia, Caragana tibetica, Artemisia ordosica, Artemisia argyi, Artemisia scoparia and so on. In the community, species diversity is generally "single", and its coverage is very low, with the maximum coverage not exceeding 65,438+0%, the relative coverage not exceeding 3%, the relative weight not exceeding 65,438+0% and the maximum coverage not exceeding 9%.