为瑞香科植物的白木香 A.sinensis(lour)Gig 为国产沉香。原植物记载有数种,其中主要为印度沉香 A。agaiiocna 等,含有树脂的木材为进口沉香。国产沉香:商品性状:为常绿乔木,产于海南省和广西部分地区,全年均可采收。将老树树干凝结树脂部分的木质部(结油或油格)据下,用刀雕挖,除去白色木质及朽木, The white woody A.sinensis (lour) Gig for the Daphne species is a domestic incense. The original plant recorded several species, mainly Indian incense A. agaiiocna, etc., resin-containing wood for the import of incense. Domestic incense: Commodity traits: evergreen trees, produced in Hainan Province and parts of Guangxi, the year can be harvested. The old tree trunk resin part of the condensation of the xylem (knot oil or oil grid) according to the next, dug with a knife, remove the white wood and dead wood,