1. Tall grass with smooth bluish leaf sheaths grown for hay in the United States
   - bluestem, blue stem, Andropogon gerardii

Type of: grass

• oho
• oi
• OIG
• oik
• oil
• oil beetle
• oil burner
• oil business
• oil cake
• oil cartel
• oil change
• oil color
• oil colour
• oil company
• oil conservation
• oil filter
• oil furnace
• oil future
• oil geologist
• oil gland
• oil heater
• oil industry
• oil lamp
• oil meal
• oil nut