COCKLEBURS AND SAND SPURS. 
Cockleburs are covered with hooks, too, but they 
are much uglier than burdocks, for their seed pods are 
very hard and are covered on the 
outside with stiff, strong hooks 
that prick like needles. 
When one walks among 
cockleburs, he soon stops 
to pick them off, for they 
hurt so, he cannot 
bear it. 
Sand spurs are 
even worse than 
cockleburs. 
They are 
the seed 
coverings 
to a kind 
of grass. 
In Florida 
this grass grows in tufts and spreads out close to the 
ground. Some of its stalks are covered with sand 
spurs that, like the cockleburs, are hard and are 
covered, not with hooks, but with very hard spines. 
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