Family POACEA 47 
amounts of this grass may cause serious injury to stock due to 
mechanical injury from awns. Alliance; Aten; Bassett; Chadron; 
Halsey; Hardy; Kearney; Kennedy; Lincoln; Minden; Natick; Sioux 
county; Thedford. 
2. Hordeum pusillum Nutt. 
. Little Barley. 
Common throughout the state. Lincoln; Thedford. 
Tribe 3. CHLORIDE. 
Spikelets with several flowers. 1. Eleusine. 
Spikelets with one or rarely two perfect flowers. 
Flowers perfect, spikes all alike. 
Flowering scales 5 mm. or more long. 
Tall marsh grasses; flowering scales not 3-toothed. 2. Spartina. 
Low grasses of dry prairies; flowering scales 3-toothed. 
Spikes 1—4, usually over 15 mm. long. 4, Bouteloua. 
Spikes numerous, 12 or more, less than 15 mm. long. 
5. Atheropogon. 
Flowering scales 3 mm. long or less. 
Hydrophytes; spikelets as broad as long. 3. Beckmannia. 
Xerophytes with narrow, almost filiform spikes. 
6. Schedonnardus. 
Flowers dicecious; pistillate spikes very different from the stami- 
nate, 7. Bulbilis. 
1. Eleusine. 124. 
1. Eleusine indica (L.) Gaertn. Yard-grass. 
Introduced but rare. Brunswick; Lincoln; Red Cloud. 
2. Spartina. 120. 
Spikelets over 10 mm. long; spikes over 5 em. long. 
1. S. cynosuroides. 
Spikelets less than 10 mm. long; spikes less than 5 cm. long. 
2. S. gracilis. 
1. Spartina cynosuroides (L.) Willd. Slough-grass. 
In wet places throughout the state, but most common in the eastern 
part. Cherry county; Halsey; Laurel; Lincoln; Mullen; Niobrara 
river; Saunders county; Valentine; Whitman. 
2. Spartina gracilis Trin. Little Cord-grass. 
In saline marshes in the western part of the state. Crawford; 
Cheyenne county; Haigler; Sheridan; Simeon. 
3. Beckmannia. 123. 
1. Beckmannia eruczformis (L.) Host. Western Slough-grass. 
In wet places in the western part of the state. Anselmo; Bordeaux; 
Kennedy; Merriman; Whitman. 
4. Bouteloua. 123. 
Rachilla of the rudimentary flower glabrous. 1. B. hirsuta. 
Rachilla of the rudimentary flower with a tuft of long hair at its 
apex. 2. B. oligostachya. 
1. Bouteloua hirsuta Lag. Black Grama-grass. 
In dry prairies over most of the state. Belmont; Gage county; Hal- 
sey; Lincoln; Mullen; Pishelville; Valentine. 
