178 FLOWERS OF FIELD, HILL, AND SWAMP 



3. Common Fumitory 



Fumaria officinalis. — Family, Fumitory. Color, pink, 

 shading to darker. Leaves, compound, finely cut. l^ime, 

 summer. 



Sepals, 2, acute, lance-like, sharply toothed. Petals, 4, in 

 pairs, I of the petals spurred. Stamens, 6. Fruit, a i-seeded, 

 round pod. Stems ^ to 3 feet long. 



Branching and leafy. Flowers small, in spikes or dense ra- 

 cemes. 



4. Mouse-ear Cress 



Sisymbrium Thalianum. — Family, Must.nrd. Color, white. 

 Leaves, entire, or slightly toothed. Time, early spring. 



A small plant, branched, hairy at base. The 4-sided pods are 

 longer than the flower pedicels. Imported from Europe, and 

 found in our country from Massachusetts to Kansas, in old rocky 

 fields. 4 to 16 inches high. 



5. Whitlow-grass 



Draba verna. — Family, Mustard. Color, white. Leaves, all 

 from the root, oblong, or lance-shaped. Time, early spring. 



Sepals and petals, 4. The petals are quite deeply 2-cleft. 

 Stamens, 6. Pistil, i. Pods on long stalks, oval, pointed. 

 The tiny flower-stems are 2 or 3 inches high, with delicate, 

 open petals. One of our earliest roadside flowers, so small 

 as almost to escape notice. 



Introduced from Europe, in sandy soil along roadsides and in 

 waste places. 



6. Common Winter Cress. Yellow-rocket 



Barbarea vulgaris (named from St. Barbara). — Family, 

 Mustard. Color, yellow. Leaves, the lower lyrate, having a 

 large, rounded, terminal lobe; the upper leaves variously cut 



