BLUE AND PURPLE FLOWERS 
(Including Violet and Lilac) 
GROUP I 
Leaves mostly opposite. Stem four-sided. 
Mint 
Wild Mint (Mentha arvensis, var. canadensis). 
family. July to September. 
Low perennial with hairy stem, light-purple corolla four-cleft; 
stamens four; style prominent. Wet places. Gill-over-the- 
Ground (Nepetahederacea). Mint family. Perennial. Pale-blue, 
two-lipped corolla; four stamens, two longer. Leaves rounded. 
Damp places. Common Dittany (Cttnila origanoides) . Mint 
family. Perennial, averaging a foot. Light-purple; corolla two- 
lipped; stamens two, projecting; leaves egg-shaped, toothed. 
Dry hills. 
GI LL- OVE R-THE - 6R0UN D 
\Nepeta hederacea) 
COMMON DITTANY 
\Cuni/a origanoides) 
230 
