Comparative Study on Chemical Components of the Volatile Oil from the Root of Angelica pubescens in Different Habitats Resources Survey of Medicinal Species from Genus Aralia Bencaolapcai Stuos and Resource Investigation on TraditionaiChinese Drugr Dubuo,Jiuyanduhuo and Qianghuo Effect of water extracts from Duhuo Jisheng decoction on expression of chondrocyte G1 phase regulator mRNA Pharmacognostical Identification and Commercial PrOduct Investigation of Traditional Chinese Drug Jiuyanduhuo