PROBLEM TO BE SOLVED: To artificially cultivate Grifola gargal that naturally grows in Chile and Argentina in South America, has peculiar fragrance and has been locally relished, thereby supplying the plant in large quantities as a food material. SOLUTION: A method for artificially cultivating Grifola gargal comprises: the first step of inoculating a medium with Grifola gargal's spawns and culturing them into mycelia; the second step of subjecting the mycelia to light irradiation and/or low-temperature stimulation at the stage of suddenly decreasing in the benzaldehyde content of the mycelia to form anlagen; and the third step of culturing the anlagen to form Grifola gargal's carpophore; and preferably, the fourth step of continuing the culture for 20-50 h in such a condition that the carbon dioxide concentration and humidity in the culturing ambience are raised. The Grifola gargal thus cultivated has ITS-1(internal transcribed spacer-1) described in the Sequence table 1 and ITS-2 described in the Sequence table 2, has ITS-1 described in the Sequence table 3 and ITS-2 described in the Sequence table 4, has ITS-1 described in the Sequence table 5 and ITS-2 described in the Sequence table 6, or emits benzaldehyde-based fragrance. COPYRIGHT: (C)2007,JPO&INPIT