126 WILD FLOWER FAMILIES 
and from which it may be known by the shorter 
flower-stalk, which turns down beneath the leaves 
and the white or pinkish petals, which are re- 
curved. The Prairie Wakerobin is a species in 
which the flower is sessile and the leaves have 
rather long petioles. It is found in a limited 
region in the Mississippi Valley. 
PURPLE TRILLIUM 
One may often find in the older settled regions 
of the United States two familiar members of the 
Lily-of-the-Valley family which have escaped 
from cultivation. One of these is the common 
Asparagus of the garden, which is frequently 
found growing in waste places, where perhaps 
some seed has been dropped by a bird or carried 
