188 



WEEDS AND USEFUL PLANTS. 



131 



17. LEUCAN'THEMUM, Tournef. OX-EYE DAISY. 



[Greek, Leukos, white, and Anthemon, a flower ; in reference to its white rays.] 



Heads many-flowered ; rays pistillate, numerous. Involucre spreading, 

 broad and nearly flat, the scales imbricated, with scarious margins. 

 Receptacle flat or somewhat convex, naked. Tube of the disk-florets 

 fleshy, obcompressed, and slightly 2-winged. Akenes of the disk and ray 

 similar, subterete, striate, destitute of pappus. Perennial herbs. Leaves 

 alternate, mostly pinnatifid or incised-dentate. Heads rather large, soli- 

 tary and terminal. 



FIG. 131. The White-weed or Ox-eye Daisy (Leucanthcmum vulgare). 



