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)

Plant Systematics/Taxonomy/Biogeography.

Life Sciences.

Woodland culture

Archaeology.

Plant remains (Archaeology)

Plant Ecology.

Agriculture, Prehistoric

Mound House Site (Ill.)

Agriculture

Hopewell culture

Paleoethnobotany

Plant Sciences.