A GUIDE TO THE WILD FLOWERS 9 



Stem leafy; flowers not very numerous. 



20. Bog Arrow-grass. Schcuchseria pahistris. A bog plant 

 with leaves 4-18 in. long, the upper stem leaves much re- 

 duced in size. Flowers few, white, in a loose cluster, the 

 stalklets spreading. Fruit about yg in. long. Labrador to New 

 Jersey, and westward, mostly in cold northern bogs. August. 

 Fig. 20. 



Stems not leafy, the leaves all basal; flowers many, in a slender 

 elongated, naked spike. 



21. Arrow-grass. Triglochin maritima. Usually in salt 

 marshes in the east, in fresh water westward. Leaves less 

 than % in. wide, often nearly round in cross section. Flower 

 cluster slender, about 15 in. long, the small (% in.) whitish 

 flowers on short stalks. Summer. North Temperate regions 

 generally. A related species, Triglochin palustris, grows in 

 bogs and has shorter leaves. It is found from Labrador to 

 New York, and westward. Also in Europe and Asia. 



22. YELLOW-EYED GRASS. FLOWERING RUSH. 

 XYRIS. 



Slender bog or swamp plants with flat, grass-like leaves. 

 Flowers always yellow, in small terminal heads, composed 

 of numerous over-lapping brownish scales through the upper 

 ones of which the flowers emerge. (Xyridaccac.) Several 

 species are known, of which the following are commonest: 



Plants bulbous-thickened at the base 

 Leaves straight or slightly 



twisted Yellow Flowering Rush no. 23 



Leaves conspicuously spirally 



twisted Yellow-eyed Grass no. 24 



Plants not bulbous-thickened at the 

 base Yellow-eyed Grass no. 25 



23. Yellow Flowering Rush. Xyris flexuosa. From 4-18 

 in. tall. Leaves flat, 1-6 in. long, less than % in. wide, some- 

 times slightly twisted, when old. Flower heads globe-like- 

 oblong, about % in. long; the expanded flower about % in. 

 in diameter. August. Maine to Georgia, and westward, 

 mostly in open bogs and meadows. Fig. 23. 



