CLOVERS AND ALLIED PLANTS. 



59 



Burr Clover {Medicago denticulata). — An annual with 

 spreading stems, usually 'quite hairless. Stipules bordered 

 with fine teeth. 

 The pod is spir- 

 ally twisted, and 

 is edged with two 

 rows of hooked or 

 curved prickles— 

 the whole form- 

 ing a burr. 



This is a vol- 

 unteer, occurr- 

 ing in scattered 

 locaUties. The 

 burrs cause Httle 

 or no inconveni- 

 ence in New Zea- 

 land, while the 

 f ohage gives good 

 feed in Spring 

 and Autumn, It 

 is never sown. 



Spotted Burr 

 Clover (Medicago 

 macuhta) . — Very 

 much hke the 

 precedingspecies 

 except that the pod is more compact and globular in shape, 

 and that there is usually a dark spot in the middle of each 

 leaflet. It also is a volunteer. 



Sainfoin {Ondbrychis vtcimfolia). — A perennial of a few 

 years' duration with stems 1 to 2 feet high ; stipules brown, 

 thin, finely pointed ; leaflets a dozen or more ; flowers 

 bright pink. 



Fig. 30.— Burr Clover. 



(Prom N.Z. Department of Agriculture, Leaflet 6). 



