168 BERBERIDACEAE (BARBERRY FAMILY) 
more than a foot long in the larger plants; flowers large and 
deep blue with the two upper petals white; spur and sepals about 
equal in length, often three- 
fourths of an inch.  Follicles 
smooth, the seeds with a thin 
margin or wing at the end. 
(Fig. 114.) 
Means of control the same as 
for the Purple Larkspur. 
Fic. 114. — Western Larkspur (Del- Fie. 115.— Common Barberry (Berberis 
phinium trollifolium). X 3. vulgaris). Xi. 
COMMON BARBERRY 
Bérberis vulgaris, L. 
Introduced. Perennial. Propagates by seeds. 
Time of bloom: May to June. 
Seed-time: Fruit ripe in September, but persistent on the stems 
until winter. 
Range: Eastern and Middle United States. 
Habitat: Fence rows, thickets, and waste ground. 
