YELLOW 



This plant is extensively cultivated in Europe, its ground 

 seeds forming the well-known condiment. The ancients used it 

 for medicinal purposes. It has come across the water to us, and 

 is a troublesome weed in many parts of the country. 



WILD RADISH. 



Raphanus Raphani 'strum. Mustard Family. 



One to three feet high. Leaves, Rough; lyre-shaped. Flowers. Yel- 

 low ; veiny ; turning white or purplish ; larger than those of the black mus- 

 tard, otherwise resembling them. Pod. Often necklace-form by constric- 

 tion between the seeds. 



This plant is a troublesome weed in many of our fields. It is 

 the stock from which the garden radish has been raised. 



YELLOW WATER-CRESS. 



Nasturtium palustre. Mustard Family. 



Erect, branching, one to three feet high. Leaves. Pinnately parted 

 into oblong, toothed lobes. Flowers. Yellow, small, growing in racemes. 

 Pod. Linear or oblong, spreading or curved. 



The yellow water-cress is common in wet places or in shallow 

 water almost throughout North America. Its insignificant yellow 

 flowers are found from May till September. 



RATTLESNAKE-WEED. HAWKWEED. 



[PI. LXII. 

 Hieracium venosum. Composite Family. 



Stem or Scape. One to two feet high; naked or with a single leaf; 

 slender; forking above. Leaves. From the root; oblong; often making 

 a sort of flat rosette ; usually conspicuously veined with purple. Flower- 

 heads. Yellow ; composed entirely of strap-shaped flowers. 



The loosely clustered yellow flower-heads of the rattlesnake- 

 weed somewhat resemble small dandelions. They abound in the 

 pine-woods and dry, waste places of early summer. The purple- 

 veined leaves, whose curious markings give to the plant its com- 

 mon name, grow close to the ground and are supposed to be 



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