188 



WEEDS AXD USEFUL PLANTS. 



17. LEUCAN'THEMUxM, Tournef. Ox-eye Daisy. 



[Greek, Leulcos, \Yliite, 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 clisk-fiorets 

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

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

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

 tary and terminal. 



Fig. 131. The White-weed or Ox-eye Daisy (Leucanthemum vulgare). 



