Larix kaempferi 10-20cm | Japanese larch | Karamatsu - Japanese larch | Karamatsu The Larix kaempferi, commonly known as the Japanese larch, is a stunning Larix kaempferi tree native to Japan. This deciduous conifer stands out for its delicate Larix kaempferi needles, which turn a vibrant golden-yellow in autumn before shedding, creating a striking seasonal display.