480 



ANGIOSPERMS 



Goosefoot Family (Chenopodiaceae). This family contains 

 many plants, chiefly herbs and most of which are weeds. The 



FIG. 424. Russian Thistle (Salsola Kali, var. tenuifolia). At the left, 

 an entire plant, showing the tap-root and character of the stem (X T V); at 

 the right, a portion of a plant, showing the leaves and flowers about natural 

 size. Modified from Oswald and from Beal. 



flowers are small and usually greenish. The Spinach and Beets 



are well-known pot herbs of this 

 family, and also from Beets most 

 of our sugar is now obtained. 

 Among the many that are classed 

 as weeds, the Russian Thistle 

 (Fig. 424) is the most noted one. 

 Belonging to the same order is the 

 Amaranth family, which contains 

 some ornamental plants and a 

 number of common weeds. Of those 

 that are ornamental, the Cocks- 

 comb, Prince's Feather, and Bache- 

 lor's Button, grown in gardens for 

 their highly colored flower clusters, 

 are common ones. The Pigweed, 

 and Tumbleweed (Fig. 42&), com- 

 mon in gardens, truck patches, 

 and waste places, are the most 

 troublesome weeds of this family. 

 Pink Family (Caryophyllaceae). This family contains many 



species, which are chiefly herbs of the temperate regions. The 



FIG. 425. The Tumble Weed 

 (Amaranthus graedzans), showing 

 the general character of the plant. 



xi 



