118a. Ligules <
8; heads > 2.5 cm across;
leaves rough with hairs on both
sides................................................................................
#101.
Engelmann's Daisy.
Engelmannia pinnatifida.
118b. Ligules greater than 8; heads
less than 2.5 cm across;
leaves
glabrous or with soft hairs....................................................
#102.
Butterweed.
Senecio imparipinnatus.