288 



FIELD AND WOODLAND PLANTS 



from one to three feet high. Its lower leaves are rough, and deeply 

 divided into a large terminal and small lateral lobes ; and the 

 upper ones are small, very narrow, smooth and undivided. The 



flowers are yellow, 

 usually less than 

 half an inch across, 

 in long, narrow 

 racemes ; and the 

 shortly-stalked 

 pods are four- 

 angled, smooth, and 

 about haK an inch 

 long. They do not 

 spread much, and 

 the short beak 

 consists only of 

 the narrow style. 

 This species flowers 

 from June to 

 August. 



The Wild Radish 

 or White Charlock 

 {Raphanus Rapha- 

 nistrum) is a com- 

 mon corn-field 

 weed, somewhat re- 

 sembHng the mus- 

 tards just described 

 in general appear- 

 ance, but its pods 

 are distinctly con- 

 stricted between 

 the seeds, and often 

 spht when ripe into 

 from three to seven 

 one-seeded joints. 

 The plant is bristly, 

 and grows from one to two feet high, flowering from May to 

 September. The petals are either white with purpUsh veins, or 

 pale yellow, or lilac ; and the pods, over an inch long, are tipped 

 by the conical style, which is about twice as long as the last joint. 



The Black Mustard, 



