50 BULLETIN 65, HAWAII EXPERIMENT STATION 



No. 48. TRICHACHNE INSULARIS, VALOTA INSULARIS (6, p. 172) 

 Common names: Silk grass, sour grass 



Sour grass, originally described from Jamaica (6, p. 170), is dis- 

 tributed over the Tropics and sub-Tropics of the Western Hemisphere. 



Figure 48.— Trichachne insutaris 



This perennial is rather coarse, tufted, and 4 feet high or more. It 

 is decidedly unpalatable to all kinds of stock, and is regarded as a weed 

 in Central America. In Hawaii it is one of the most obnoxious grasses. 

 It seeds heavily and spreads rapidly. At present, it is largely restricted 

 to Oahu. 



