TAILIEUCHUNG - Medicinal plant diversity at Cham Chu nature reserve area, Tuyen Quang province

The richest 3 families are Euphorbiaceae with 22 () species, Rubiaceae with 17 () species and Asteraceae ranks third, with 16 () species, respectively. When the medicinal plant of the area are analysed by Raunkiaer’s life form system, the results are follows as: phanerophytes 311 (), chamaephytes 45 (), hemicryptophytes 10 (), cryptophytes 33 (), and therophytes 26 () species, respectively. | VNU Journal of Science: Natural Sciences and Technology, Vol. 34, No. 2 (2018) 41-45 Medicinal Plant Diversity at Cham Chu Nature Reserve Area, Tuyen Quang Province Pham Thi Oanh1,2, Ngo Duc Phuong2, Do Thi Xuyen2, Nguyen Trung Thanh2,* 1 Faculty of Sciences, Hai Phong University, Hai Phong City, Vietnam Faculty of Biology, VNU University of Science, 334 Nguyen Trai, Hanoi, Vietnam 2 Received 07 April 2018, Accepted 19 April 2018 Abstract: A total of 443 medicinal plant species were recorded in Cham Chu Nature Reserve Area belonging to 325 genera and 120 families. Most of the medicinal plant species in Cham Chu Nature Reserve Area are Angiosperms with 425 species () (360 Dicotyledonae, 65 Monocotyledonae), 6 species belong to the Gymnosperms (), 10 species are Polypodiophyta (), Psilotophyta and Lycopodiophyta are only one species (). The richest 3 families are Euphorbiaceae with 22 () species, Rubiaceae with 17 () species and Asteraceae ranks third, with 16 () species, respectively. When the medicinal plant of the area are analysed by Raunkiaer’s life form system, the results are follows as: phanerophytes 311 (), chamaephytes 45 (), hemicryptophytes 10 (), cryptophytes 33 (), and therophytes 26 () species, respectively. Keywords: Medicinal plant, Cham Chu, Tuyen Quang. Table 95. Introduction conversion into agricultural cropland. Harvesting non-timber forest products, selective extraction of plants, medicinal plant and animals, biological invasion, and monoculture threaten to erode biodiversity seriously [2]. Reorientation of the attitudes of people towards maintaining biodiversity is of utmost importance [3]. Cham Chu Nature Reserve Area in the Tuyen Quang province of Vietnam’s, is an area of steep mountains and dense rainforest. Cham Chu region has a tropical monsoonal climate with two clear seasons: the winter is cold – dry and summer is hot and a lot of rain with the high .

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