From: The influence of heat on phytolith morphology and implications for quantifying archaeological foxtail and common millets
Sample no.
Name of varieties
Producing area
CM1
Xifengyingshu
Gansu province
CM2
Yangyuan
Hebei province
CM3
Qinan
CM4
Jinzhong
Shanxi province
CM5
Xifengnianshu
CM6
Neimenggu
Inner Mongolia