Recent excavations at three prehistoric sites in eastern Idaho recovered a moderate amount of culturally-introduced macrobotanical remains, including mountain ball and prickly pear cactus, goosefoot, sunflower, and tobacco, all of which came from contexts dating between 1500 B.C. and A.D. 1000. Within the greater region, cactus, goosefoot, and sunflower were first used by people between ca. 11,000 and 8500 B.C., whereas the archaeobotanical record for tobacco dates back to 10,300 B.C. The Birch Creek Valley data set allows us to explore aspects of local site function and settlement practices, as well as the temporal range and ubiquity of the above-listed taxa within the northern Intermountain West and adjacent portions of the central Rocky Mountains.

中文翻译：

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落基山脉中部的土著植物使用：来自爱达荷州东部桦树溪谷三个史前遗址的大型植物记录

最近在爱达荷州东部三个史前遗址的发掘中恢复了适量的文化引入的大型植物遗迹，包括山球和仙人掌、鹅掌、向日葵和烟草，所有这些都来自公元前 1500 年至公元 1000 年之间的背景。更大的地区，仙人掌，鹅掌和向日葵是加利福尼亚州之间的人们首先使用的。公元前 11,000 年和 8500 年，而烟草的古植物记录可以追溯到公元前 10,300 年 Birch Creek Valley 数据集使我们能够探索当地遗址功能和定居实践的各个方面，以及上述分类群的时间范围和普遍性北部山间西部和中部落基山脉的邻近部分。