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One fine day my grandchildren ran
barefoot onto my cool, soft lawn, as they had done so many times
before. Suddenly, they were dancing and screaming. A
careful search of the grass turned up these nasty lawn burweeds, which
were hidden down among the grass. I had never seen them before.
The leaves and branches radiate from
the base of the flower. The only effective means I have found to
remove them from the lawn is to reach carefully down and grasp the
plant below the lowest bur, and pull it out, one by one. Spraying
them would leave the sharp burs there.
The tiny flower head doesn't really
open. The stigmas and stamens are in the central peak of the bur.
Each flower produces one hard, dry
fruit.
When mature the bur consists of a number of these viscous fruits,
waiting for a soft foot to carry it to place where it can grow.
[Plants
] [Back Yard
Biology ] [ Science Can Be Fun
]