1. Coarse perennial ragweed with creeping roots of dry barren lands of southwestern United States and Mexico
   - western ragweed, Ambrosia psilostachya

Type of: ambrosia, bitterweed, ragweed

• button-quail
• button-shaped
• buttoned
• buttoned-down
• buttoned-up
• buttonhole
• buttonhole stitch
• buttonhook
• buttonlike
• buttonwood
• buttony
• buttress
• buttressed
• buttressing
• buttweld
• butty
• butut
• butyl
• butyl alcohol
• butyl nitrite
• butyl rubber
• butylate
• butylene
• butyraceous
• butyrate