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Journal of Thai Traditional & Alternative Medicine Vol. 12 No. 1 January-April 2014 31

Abstract
Floristic Diversity, Conservation Status and Distribution of Medicinal Plants in Phu
Phan forest complex: Northeastern Thailand
† †
Rutchanee Chantraket*, Pirot Pramual , Pornchai Uttaruk
*Office of Information and Evaluation, Department for development of Thai Traditional and Alterna-
tive, Medicine Ministry of Public Health, Nonthaburi 11000, Thailand
†
Mahasarakham University, Tambon Kamriang, Kantarawichai District, Mahasarakham 44150, Thai-
land
Coreresponding author: chantraket@gmail.com
The objectives of this study were to analyze the species diversity of medicinal plants as well
as their distribution and conservation status in Phu Phan forests, Northeastern Thailand based
on the LBSDC Project. The project conducted by MNRE from July 2006 to January 2009, cover-
ing a sample of 49 plots in 4 provinces. As a result, the Thai Medicinal Plants has been covered
429 species belonging to 102 families; among them, 64 species are in the family Leguminosae. The
top five dominant species with a high Important Value Index (IVI) were Shorea obtusa Wall., S.
siamensis Miq., Dipterocarpus obtusifolius Teijsm.ex Miq, Xylia xylocarpa Taub. var. kerrii Nielsen
and Pterocarpus macrocarpus Kurz. Shannon-Wiener species Index (H’), Species Diversity (D)
and Evenness Index (J) were 3.84, 46.42, and 0.74 respectively. Of all the 50 species, 16 were
classified into Red List species. The results of this study can be used as depth information for
developing other tools for further planning and management of medicinal plants including their
native forests in other regions of Thailand.
Key words: medicinal plant; biodiversity; Red List; threatened species