257 



Fig. 251. EATONIA PENNSYLVANICA (DC.) A. Gray, Man. Bot. ed. 2. 558. 

 1856. {Koderiapcnns7jlvanicaI)C.Iiort.^lonfi-p.ll7. 1813.) EATON'S GRASS.— 

 A slender, pale-green perennial 3-9 dm. (l°-30) high, with flat leaf-blades and 

 narrow, terminal panicles 7-18 cm. (3'-8') long. Sheaths shorter than the 

 internodes; ligule 1.5 mm. (J") long; leaf-blades 5-18 cm. (2'-7') long, 2-6 mm. 

 (l"-3") wide, scabrous. Spikelets (a) 3-3.5 mm. (li"-ir') long, somewhat 

 crowded and appressed to the branches; empty glumes (6) unequal, the first 

 narrow, shorter than and about one-sixth as broad as the obtuse or abruptly 

 acute second one, which is smooth or slightly scabrous on the keel; flowering 

 glumes (c) narrow, acute, 2.5 (U") long.— Wet meadows, low woods, and thick- 

 ets, Newfoundland and Maine to British Columbia and Washington, south to 

 Georgia, Mississippi, Texas, and Arizona. April to August. 



Var. M.\J0R Torr. 1. c, a taller form with longer and more compound panicle.'^, 

 longer and broader leaves with the range of the type. 

 20801— Xo. 7 17 



