238 



Fig 232. TRIODIA AMBIGUA (Ell.) Benth. in Vasey, U. S. Dept. Agr. Spec. 

 Kept 63 : 35. 1883. {Poa ambigua Ell. Sk. Bot. S. C. and Ga. 1 : 165. 1817; 

 SiecjUncjia ambigua Kuntze, Rev. Gen. PI. 2 : 789. 1891. )-An erect perennial G-12 

 dm (2°-4°) high, with narrow, flat leaves and open, pyramidal panicles 10-20 

 cm (4'-8') long. Spikelets (a) 4-6 mm. (2"-3") long, 5 to 8 flowered, usually 

 purple; emptv glumes slightly shorter than the lower flowering glumes (b) 

 which is 3-nerved, the nerves somewhat excurrent and pubescent below the 

 middle. Palea {c) equaling the glume.-Dry, open pine barrens near the coast, 

 South Carolina to Texas. July to October. 



