46 PASTURE PLANTS AND PASTURES OF N.Z. 



No distinct red and white veins 9 



8. No rhizomes Yorkshire Fog 

 Strong rhizomes — a serious twitch Creeping Fog 



9. With distinct clasping ears 10 

 With no sign of clasping ears, though there may be 



present unmistakable rounded shoulder-like 

 projections (v. fig. 9 p. 17) 11 



10. With strong rhizomes — a serious twitch 



Agropyrum repens 

 Without rhizomes (an annual, with a barley-like 

 head, usually visible or enwrapped in the 

 leaves) Barley Grass 



11. Hairs on the blade short and in distinct lines 



(usually only to be seen by method described 

 on p. 27) 12 



Hairs long, often velvety, and always quite obvious 13 



12. With a string of 3-8 onion-like swellings about the 



size of peas at the base of the plant Onion Twitch 

 With no string of onion-like swellings Tall Oat Grass 



13. With purple colouring over blade, or at least on the 



ear-Uke expansions at base of blade ; an annual ; 

 waste land only. Spikelets with awns about one 

 inch in length Barren Brome 



With no purple colouring at ears ; an annual on 

 waste land or in old pastures ; awns about 

 quarter of an inch long Goose Grass 



14. With distinct rhizomes or sometimes stolons 15 

 No rhizomes or stolons 19 



15. With clasping ears Agropyrum repens 

 Without clasping ears 16 



16. Growing almost exclusively in slow running water ; 



broad soft blade ; compressed sheath 



Floating Sweet Grass 

 Growing on dry land 17 



