Monica Johnson and Brigid Campbell
look at the ever-changing flora and fauna in our beautiful wildflower
meadow which is named in memory of Reg Smith, founder of the Hawk Conservancy
Trust.
A Bewilderment of Green – June 2007
By the end of May the golden display of
the Cowslips is over and the meadow has gone from yellow to
green. The hedges are all in full leaf and the hawthorn blossom
has almost finished.
Larvae Web on Spindle
Spindle Ermine Caterpillars
Along the bottom hedgerow the Wayfaring Tree is still just in
bloom and tiny flowers are appearing on the Spindle bushes,
too small to be seen from a distance. There is one Spindle shrub
in the hedge behind the seating area, just beyond the gap to
the mound, and this bush has had an infestation of caterpillars,
hatching out in spider-like webs all over the bush. The caterpillars
are the larvae of the Spindle Ermine moth, Yponomeuta cagnagella,
and can clearly be seen inside the webs as they grow towards
maturity. They can become a serious problem and strip whole
spindle bushes of leaves, spreading to others in the same hedgerow
but as this bush is fairly isolated we hope it will not become
a problem. We will keep a careful eye on the area.There are
already a lot of other insects around the meadow, seeking out
the flowers as they open. The first little blue butterfly I
have seen this year was flitting around busily in the warm sunshine
but would not sit still long enough to be examined or photographed.
There are numerous beetles, weevils and other tiny creatures
on many of the plants, often too small to be noticed until they
show up in photographs later!
Early Greenery
Spring Greens
Our page this month has a green theme. At the start of the growing
season in Reg’s Meadow it is always a challenge for us
to try to identify the first small plants as they appear and
even as they grow larger it can still be confusing. Some plants
have quite similar foliage to others around them and until the
flowers begin to appear in April and May it can be hard to tell
them apart. Here are a few of the species that feature most
prominently in our meadow. As you walk round in early June you
will find a lot of flowers already coming out, but have a look
at the areas that are still just green and you should be able
to identify some of them.
Bird’s Foot Trefoil
Bird’s Foot Trefoil
The Cowslip leaves are among the first to appear and are quite
distinctive, as pictured in previous pages. Another plant that
comes up early is Bird’s Foot Trefoil, sending up tiny
light green rosettes that gradually open out to show the leaf
shape. Although this is called a trefoil it actually has five
leaflets, three in the clover-like shape and two more at the
base, attached to the stem. Bird’s Foot Trefoil is one
of the most abundant species in the meadow and as the flowers
are already appearing they will be easy to spot.
Greater Knapweed
Greater Knapweed
Lesser Knapweed
Lesser Knapweed
A little more difficult to identify are the two Knapweeds, Greater
and Lesser, both of which grow abundantly in Reg’s Meadow.
The foliage is rather variable at different stages of growth
and we usually say “What on Earth is that?” as the
clumps first appear! Greater Knapweed has very pinnate leaves,
with deep lobes, quite rounded at the base of the plant but
thinner and more sparse towards the top, when the flowers come
out. Even on the same plant the leaves can come in quite different
shapes. Lesser Knapweed, also known as Black Knapweed or Hardheads,
has narrow leaves, not pinnate, with lower leaves slightly lobed
and again these can vary significantly in shape. Both form quite
distinctive tall clumps and we are beginning to get the hang
of them!
Lady’s Bedstraw
Young Foliage
Far easier to recognize is Lady’s Bedstraw, which has
circular whorls of eight to twelve thin, needle-like leaves
around the stem, looking unlike all other plants in the meadow.
Later in the year this seemingly unimpressive plant will bring
a haze of yellow blossom and a sweet scent back to the whole
meadow.
Wild Carrot
Yarrow
Wild Carrot & Yarrow
Two plants which can be difficult to tell apart before their
flowers appear are Wild Carrot and Yarrow. Both have thin,
delicate, frond-like leaves, growing low down among all the
other vegetation where they are almost lost in the growing
frenzy. The Wild Carrot leaves are carried on opposite pairs
at intervals along the stem and the individual leaflets are
pinnate, while the more feathery Yarrow leaflets are also
pinnate but spaced out evenly. Seen together side by side
they are quite obviously different, but if you come across
one on its own it is easy to have a moment of doubt. Once
the flowers form there is no doubt which is which, but at
the moment you could still be forgiven for not being sure.
St. John’s Wort
Some plants have quite recognizable greenery and are not easily
mistaken for anything else. We don’t have space to show
all of the ones in Reg’s Meadow which fall into this category,
but here are just a few. Salad Burnet has pretty leaflets, rounded
and pinnate, in four to twelve opposite pairs. Young stems of
Perforate St. John’s Wort are red and the tiny perforations
in the leaves which give the plant its name are clearly visible,
even when the stems are quite small. We have plenty of Common
Vetch in our meadow and this also has distinctive foliage, consisting
of three to eight pairs of small oval leaflets, with a curled
tendril at the tip.
Salad Burnet
Common Vetch
This foliage is similar to other vetches, though the number
of leaflets varies from one member of the family to another.
The flowers of different vetches differ in colour, so it is
much easier to identify them from their flowers than their greenery.
Wild Marjoram
Wild Basil
The last two plants we are looking at can
be confused quite easily when they are young and even if you
know what you are looking for it is not always easy to be sure
which species you have found! Once again it is easier if you
have the two plants side by side, so that the slight differences
are more obvious. Both plants grow in a similar way, with opposite,
alternate pairs of leaves. Both are hairy, with the hairs on
the Wild Marjoram leaves more obviously around the edge of the
leaves and the hairs on the Wild Basil all over the surface.
The veins on Wild Basil are more indented, giving it a crisper
look than the Marjoram. Both plants have a similar pleasant
herbal scent if you rub the leaves. As they grow taller they
become much easier to tell apart, especially when the flowers
appear – so if you can’t decide, wait for the flowers
– that’s what we do!
Featured Species – Ladybird
7-Spot Ladybird
For many people this will be one of the most familiar of the
beetles and one which is held in great affection. There are
around 5000 species worldwide, of which about twenty or more
are found in Britain. They come in a variety of sizes and colours
and have different numbers of spots. Probably the best known
is the bright red Seven-Spotted Ladybird, Coccinella 7-punctata.
The bright red colouring is believed to act as a warning to
predators that ladybirds taste nasty. If a predator eats one
it is likely to be the first and last time!
Ladybirds are small and domed, 5-8mm long,
with males smaller than females.
Ladybird Larva
The female lays up to 300 eggs at a time on the underside of
leaves on plants that are infested with aphids, ensuring an
immediate supply of food for the developing larvae, which look
nothing like the adults. I photographed this larva on a plant
in Dorset and had no idea what it was until I found a picture
of one in “Nick Baker’s Bug Book”, just in
time for this article! The larvae grow rapidly on this good
diet, shedding their skins as they grow. The final moult is
into a pupa, from which they emerge again as adults after only
one week. Adult ladybirds continue to feed on aphids and other
small insects, eventually gathering together, often in groups,
to hibernate from autumn through the winter, when the cycle
begins again.
Alternative names include Ladybugs, Ladyflies,
Ladycows, God’s Little Cows, Cowladies, Cows of the Lord
(France), Virgin Mary’s Little Hens (Sweden), Indra’s
Cowherds (India) and Lady Beetles. Many of the names come from
religious folklore. It was said that when a plague of insects
was destroying crops the farmers prayed to the Virgin Mary,
who sent the ladybirds to eat the pests and save the crops.
The red wings are said to represent Mary’s cloak and the
spots her joys and sorrows. The number seven is often thought
to signify good luck and therefore the common 7-spotted ladybird
was also considered lucky, while to kill one would bring bad
luck. If a ladybird landed on a young woman’s hand she
would soon marry, as the ladybird was said to be measuring up
her hand for wedding gloves. On farms they predicted good weather
and good crops and farmers would say the well-known rhyme “Ladybird,
Ladybird, fly away home, your house is on fire and your children
are gone...” before setting light to their stubble fields,
to warn the ladybirds. Other uses - it was said that crushed-up
ladybirds were sometimes put into a tooth cavity as a cure for
toothache.....!
2-Spot Melanic
2-Spot Ladybird
Also found in our meadow, this spring, were two black Ladybirds
with red spots. These are known as a 4-spot melanic variation
of the 2-spot Ladybird Adalia bipunctata (confusing, isn’t
it!), where “melanic” means black or dark in pigmentation.
The red, black-spotted version shown here is also the 2-Spot
Adalia bipunctata, photographed in Surrey. Two spot ladybirds
are carnivorous and also cannibalistic and can apparently have
more than two spots.
Also seen in the meadow in the middle of May
this year was a yellow ladybird with black spots, which would
not wait around to be photographed. This was possibly Propylea
14-punctata, also sometimes called the Eyed Ladybird because
the pattern of black spots make it look as though the insect
has eyes on its back. If we manage to photograph one of these
we will show it in a later page.
Calvia 14-guttata
This last Ladybird was photographed in Surrey and is called
Calvia 14-guttata, showing yet another colour variation found
in British species. There is one other which we hope not to
see too often, called the Harlequin Ladybird, a large species
introduced in Europe as a pest control. Larger and hungrier
than our native species it competes for the same food and could
become a serious problem in the future.
Postscript
Thea 22-punctata
A yellow ladybird with black spots very kindly returned a few
days later and sat on my arm during a Valley of the Eagles demonstration.
This is Thea 22-punctata, as it has 22 spots! It was in very
much the same spot as the ladybird mentioned above, which didn’t
stay around long enough to be photographed, so we can’t
be sure whether we have seen both types.