I’m not sure that there is any single event that indicates
to me that we’ve made the transition from winter into spring. If forced to choose, I could easily imagine
the opening of the first of the year Leavenworthia uniflora bloom to be the
pivotal point between the two seasons.
These tiny winter annuals are the first of the barren plants to put
forth a bloom.
It’s easy to miss the blooming of the Leavenworthia. The plant grows in areas of rocky, bare
ground and doesn’t get tall enough to make itself noticeable. To see a Leavenworthia, you probably have to
be looking for one.
Leavenworthia can not push themselves up through a thick
vegetative mat. They stick to the open areas and do their growing before any
other plants are active enough to give them any competition. Lack of bare ground would mean the end of
these plants.
A few dead grass stalks or dried grass leaves don’t slow the
plants progress, but a thick layer would have eliminated these plants. The grass just makes it that much harder to
see the plants. A search for
Leavenworthia usually requires the eyes to be close to the ground.
The four petaled flower of the Leavenworthia uniflora,
typical of the mustard family to which it belongs, is a signal to me that a
period of rapid change is about to begin.
During the next few weeks, all manner of plants and animals will become
active. In all of the excitement, the
Leavenworthia will quietly ripen and spread its seed. Then it will disappear as it is hidden by the
real show-stoppers of the barren plant community.
Growing along in the same area are the Drabas, even smaller
mustards that are dwarfed by the Leavenworthia.
A single Leavenworthia could easily cover a dozen Drabas and a quarter
could cover the averaged sized Leavenworthia.
They are a little bit later to bloom, but their seeds generally ripen at
the same time as their larger neighbors.
An examination of these plants is well worth the price of
dirty knees. They won’t be around for
very long. I spend considerable time
each year seeking out and enjoying these species.
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