82 Reeds, Grasses, Sedges and Rushes 



MARSH ARROW GRASS 



Triglochin palusfris. Arrow-grass Family 



A marsh herb. Rootstock: short, oblique, with slender, fugacious 

 stolons. Leaves: linear, shorter than the scapes. Flowers: in racemes, 

 perianth herbaceous, of three concave sepals and three petals. Fruit: 

 linear or clavate. 



A marsh plant, with narrow leaves tapering to a point, 

 and greenish-yellow flowers growing in a long-shaped head. 



ALPINE TIMOTHY 



Phleum alpmum. Grass Family 



Clum: glabrous, erect, simple, sheaths often much shorter than the 

 internodes, sometimes longer. Leaves: smooth beneath, scabrous above. 

 Spike: short, ovoid to oblong, cylindric. 



A perennial grass, with flat leaves, and numerous dense, 

 one-flowered spikelets. 



Calamagrostis canadensis, or Blue- joint Grass, has flat 

 leaves, and open panicles of a purplish colour. It grows 

 principally in wet meadows. 



Poa alpina, or Alpine Spear Grass, has short, pointed 

 leaves, and panicles from one to three inches in length. 



Festuca ovina, or Sheep's Fescue Grass, grows in a tufted 

 fashion, and has thread-like leaves growing from the base 

 of the plant, its panicles being often one-sided and flattened. 

 It is abundant in dry meadows, and rocky places. 



Bromus Richardsonii, or Fringed Brome Grass, resem- 

 bles oats, and has wide leaves which are smooth beneath, 

 and rough on the top. The panicle is composed of many 

 branches, each one terminating in spreading or drooping 

 spikelets, with tiny awns. 



Hordeum jubatnm, or Squirrel-tail Grass, is one of the 

 handsomest and most remarkable grasses in mountain re- 



