Thale Cress

Thale Cress (Arabidopsis thaliana) is a plant from the Brassicaceae family, cousin of cabbages and mustards. It is small and slender.





It looks like nothing much, little white flowers four petals each on a thin stalk. The fruits, siliquas, are long and narrow. The plant is nearly without leaves, the basal rosette has disappeared when flowering began. But Thale Cress knows how to make seeds, however.





See here the results in good circumstances, in a field sowed with grass seed that did not germinate as it should. Instead of grass, enormous amounts of Thale Cress have emerged.





Thousands of little plants tremble with the breeze. It is very well possible next year will be completely different, there will be grass and millions of Thale Cress seeds will wait for another year.




But for now everything goes very well for Thale Cress.

Hornbeam flowers

Hornbeams (Carpinus betulus) are in flower now!






Here a twig with some male catkins, and, in the center of the image, a smaller female one.





A female catkin with some flowers, only the red pistils and some green scales are visible.

Cherry Plum

March shower.

 










Cherry Plum (Prunus cerasifera) petals are falling.

Field Elm

Hurry if you want to see the Field Elm (Ulmus minor) in bloom, it will be over quickly!

To begin with, you have to find a Field Elm. That should not be difficult, it is a common tree. Probably you will find one on the banks of the Dordogne or another river. At this moment you can recognize it by the little reddish or pale balls that cover its branches.





A rather unassuming flowering, but until now the avalanche of spring flowers is not yet there, so those little flowers stand out.





Every little ball has stamina and pistils and not much else. Maybe a scale that covered the bud before opening is still there. The buds that are going to give leaves are still very closed.






The ball at the left begins to come out, the stamina grow longer and some of them show already some pollen. Also the pistils, looking like little white feathers, get out. The flower head at the right is already at the end of flowering, only some dried-out stamina still cling to it and the white feathers of the female flowers are more abundant now. The fruits begin to develop, they are light green surrounded by rust-coloured membranous scales and crowned by a pistil.






The same thing again. To the left a flower head at the end of flowering, to the right one at its start. As in many anemophylic plants (plants that need wind to dispers their pollen), the pistils develop after the stamina.

Maybe you don't think this stunning but...

Ash

Not far from a small stream with a row of Lombardy Poplars, at the edge of a field, grow some big trees with rounded treetops. Those rather majestic trees are Ashes (Fraxinus excelsior).





They grow nearly everywhere where there is enough moisture in the soil, not only as solitary trees but also as a part of deciduous forests and along rivers.






Those three Ashes are grown so high their treetops are hidden from view by lower vegetation; the leaves in the picture are those of trees and bushes that surround them.





On young trees the bark is smooth, when it grows older crevasses form, and the trunk begins to look like that of an Oak.




The leaves are pinnate and deep green. Here below you see those of a young tree from this year besides some Great Horsetails.





And now, in March, the flower buds of Ashes come out. Buds of flowers and leaves are black.





This tree here only has male flowers. There are no petals or sepals, the stamina, some of them already open, are bare.