332 



BORAGINACEAE (BORAGE FAMILY) 



Range: Virginia to Ohio and Illinois, southward to Florida and 



Texas. 

 Habitat: Fields and waste places. 



A coarse, many-branched, and very 

 hairy plant, untouched by grazing 

 animals, robbing neighboring plants 

 of much food and moisture. Stems 

 one to three feet high, rather stout. 

 Leaves alternate, broadly ovate to 

 heart-shaped, three to six inches long 

 and nearly as wide, with wavy edges 

 and short, slightly margined petioles. 

 Flowers in long, terminal, bractless, 

 partly coiled spikes, which straighten 

 as the blossoms open from the base 

 upward ; the season of bloom is so 

 long that ripe seeds are falling from 

 the bases of the spikes before the buds 

 cease to unfold at the summit; co- 

 rolla salver-form, violet-blue, very 

 small, the tube longer than the 

 hairy calyx ; stamens five, included, 

 the anthers nearly sessile. Fruit 

 splitting into two closed carpels, 

 ribbed on the back, each usually con- 

 Indian ^Heliotrope taining two seeds or nutlets. (Fig. 

 230.) 



FIG. 230. 



(Heliotropium indicum). 



Means of control 



Prevent seed production by early, frequent, and persistent 

 cutting. 



HOUND'S TONGUE 

 Cynogldssum officinale, L. 



Other English names: Dog Bur, Dog's Tongue, Woolmat. 

 Introduced. Biennial. Propagates by seeds. 



