Hopewell culture - Agriculture - Illinois - Illinois River Valley.

Mound centers and seed security = a comparative analysis of botanical assemblages from middle woodland sites in the lower Illinois Valley / by: (Language materials, printed)

Agriculture

Agriculture, Prehistoric

Archaeology.

Hopewell culture

Life Sciences.

Mound House Site (Ill.)

Paleoethnobotany

Plant Ecology.

Plant remains (Archaeology)

Plant Sciences.

Plant Systematics/Taxonomy/Biogeography.

Woodland culture