babinski: extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons
reflex: an automatic instinctive unlearned reaction to a stimulus
poker alumroot: plant with leathery heart-shaped leaf blades clustered at base of long stalks with greenish-white flowers clustered along the upper part; western North America