1. Low-growing annual herb of southwestern United States (Texas) having silky foliage and blue flowers; a leading cause of livestock poisoning in the southwestern United States
   - bluebonnet, buffalo clover, Texas bluebonnet

Type of: lupin, lupine

• perineal
• perineal artery
• perineotomy
• perineum
• perineurium
• period
• period of play
• period of time
• period piece
• periodic
• periodic acid
• periodic apnea of the newborn
• periodic breathing
• periodic edema
• periodic event
• periodic function
• periodic law
• periodic motion
• periodic movement
• periodic sentence
• periodic table
• periodical
• periodical cicada
• periodically
• periodicity