|
You
have just cut your lawn and loped off those nasty yellow
heads. Then in a couple of days your lawn is a sea of yellow. What
would spring be like without dandelions? The dandelion was originally
brought over from Europe to be cultivated for the root, leaves and
floret. Now another whole industry, weed killers and weed tools, have
developed to get rid of it. You can cut the hollow tube supporting the
head off and it will generate a new one. You can try to dig out the
roots, but they extend so deep that there is always some left and a new
one pops up. If you leave it alone it will develop fuzzy seeds that
can be scattered for miles by the wind. This prolific plant is a marvel
of genetic engineering and seems to processes some kind of intelligence.

The dandelion heads look like eerie space alien pods
as they
prepare for launch with the next wind.
The dandelions leaves, roots and flower are most edible if
collected when they are very young in the early spring before they
become very bitter. The root of the common dandelion contains a
substance used as a laxative; the root is also roasted and ground as a
substitute for coffee. The leaves are used for salad greens, and the
flowers are sometimes used for making wine. Kids love to blow on them
when the seeds are formed. They look like tiny parachutes.
You can also make bracelets out of the stems. The flower of the
common dandelion is not a single flower but rather a composite
made up of a large number of very small flowers.
 |
The dandelion
head is a composite of over 300 tiny florets in a circular array. Each
flower will produce a seed.
KEEP
CLICKING ON PICTURE
|
Composite flowers are one of
the largest groups of flowering plants, with about 20,000 species. The
common name refers to the clustering of the flowers into compact heads
so that an entire cluster resembles a single flower, as in the familiar
sunflower or dandelion.
The composite family contains
nearly 10 percent of all the flowering plants. Lettuce is the most
important crop; other notable food plants are artichoke, endive,
chicory, and tarragon. Sunflower and safflower are important sources of
vegetable oils, and some members such as guayule have been studied as
potential sources of rubber. Weedy members of the family include
dandelion, thistle, cocklebur, and ragweed, which is a major source of
the airborne pollen that affects hay fever sufferers. Horticultural
important members of the composite family include marigold, dahlia,
zinnia, daisy, cosmos, chrysanthemum, tansy, and aster.
Dandelions clone, i.e. they derive
from another dandelion by an asexual (nonsexual) reproductive process.
Simple organisms such as the bacteria and blue-green algae, a number of
other simple organisms such as most protozoa, many other algae, and some
yeasts, reproduce by cloning. Certain higher organisms, for example,
flatworms and plants such as the dandelion reproduce by cloning.
|