Buds

This relatively warm weather and rain we’ve had for weeks now have left me with a longing for spring but it is only January, so about this time every year I scratch my itch for spring by looking at buds. Being able to identify trees and shrubs by their buds can come in handy, especially in winter, and it is a skill that any serious nature lover should have in their bag of tricks. It adds another dimension to nature study and makes it even more interesting. The bud shown above is from a speckled alder (Alnus incana,) and it has two bud scales. Bud scales protect the bud within and keep it from freezing. Buds with just two (sometimes three) scales are called valvate buds. The scales meet but usually do not overlap.

A catkin like this one on the same speckled alder is simply a long string of buds, in this case male buds, and each purple bit is a bud scale. I took this photo because it shows the gummy resin that fills the spaces between the scales of many buds. This makes the bud waterproof and this is important, because if water reaches the bud and freezes the bud will die.

This Cornelian cherry bud is another great example of a valvate bud. In the spring when the plant begins to take up water through its roots the buds swell and the scales part to let the bud grow. Some bud scales are hairy and some are covered with sticky resin. Cornelian cherry (Cornus mas) is an ornamental flowering shrub related to dogwoods. It blooms in early spring (in March) with clusters of blossoms that have small, bright yellow bracts. It has a long history with mankind; its sour red fruit has been eaten for over 7000 years, and the Persians and ancient Romans knew it well.

Magnolia flower buds in botanical terms are “densely pubescent, single-scaled, terminal flower buds.” The hairy single scale is called a cap and it will fall off only when the bud inside has swollen to the point of blossoming. Just as the plant flowers the ground under it will be littered with these hairy caps for a short time.

I saw something on the magnolia that I’ve never seen before; seed pods. At first I thought it was some type of gall.

I’ve done bud posts before but this year I wanted to show some buds I hadn’t shown before. The alder is one and this sweetgum bud is another. If you know anything about sweetgum trees or how cold it can be here in New Hampshire you are probably wondering how I took a photo of a sweetgum bud without driving south. After all, the sweetgum (Liquidambar styraciflua) reaches the northernmost limits of its natural range along the coast just above of New York City, but these trees grow near a massive wall of brick and that keeps them warm enough to thrive here in the cold. Buds with many scales that overlap like shingles are called imbricate buds. A gummy resin often fills the spaces between the scales and makes the bud waterproof on northern trees, but I’m not sure how the sweetgum buds waterproof themselves.

The identification of the sweetgum trees came easily because of their strange seed pods. I’ve read that the infertile seeds found in each of these gummy pods are a source of shikimic acid, which is one of the main ingredients in Tamiflu, so if you had a flu shot and get through winter without getting the flu this year you can thank a sweetgum.

The leaves of the sweetgum seem almost evergreen but I’m really not sure if they are or not because they aren’t supposed to grow this far north. I wonder if the radiant heat from the mass of brick they grow near has them completely baffled. By the way, if you have green plants by the foundation of your house in January the same thing is happening, but it’s your furnace instead of the sun that supplies the radiant heat. It’s fairly common in cold climates.

The oddest thing about the sweetgum tree in my opinion is its strange flattened branches. The first description of the sweetgum tree came from Spanish conquistadors who wrote of its use by the Aztec chief Montezuma. He was using the tree’s resin to flavor a pipe full of tobacco, which was another plant the Spaniards had never heard of. It must work well because it is still used to flavor tobacco today.

The lilac buds (Syringa vulgaris) in the above photo are another good example of imbricate buds. Lilac buds are very red and in spring once the plant begins taking up water again they can swell quickly enough to notice, if they’re regularly watched. I’ve watched lilac buds in spring since I was just a small boy and it has always been one of my favorite things to do in the spring. They aren’t swelling yet but it won’t be long before spring is here.

Some of the smallest buds I know belong to hawthorns (Crataegus) and the cherry red hawthorn bud in the above photo could easily hide behind a pea. There are over 220 species of hawthorn in North America, with at least one native to every state and Canadian province. In New Hampshire we have 17 species, so the chances of my identifying this example are slim to none. The closest I can come is Gray’s hawthorn (Crataegus flabellata.) I know the tree in the photo well so I know that its blossoms will be white. Hawthorn berries are called haws and are said to have medicinal value. Native Americans mixed the dried haws and other fruits with dried venison and fat to make pemmican.  The dried flowers, leaves, and haws can be used to make a tea to soothe sore throats, and hawthorn also shows promise for treating heart disease.

If you can’t identify a hawthorn by its buds then its thorns will help. On this example they were about 2 inches long and just as sharp as they look. Native Americans made fences around their settlements with brambles and thorny branches like those from hawthorns. They also made very sharp awls and fish hooks from hawthorn thorns.

A bud I most look forward to seeing open is the beech (Fagus grandifolia.) There are beautiful silvery downy edges on the new laves that only last for a day or two, so I watch beech trees closely starting in May. Botanically beech buds are described as “narrow conical, highly imbricate, and sharply pointed.” In May they are one of the most beautiful things in the forest.

Box elder buds (Acer negundo) and young twigs are often a beautiful blue or purple color due to their being pruinose. Pruinose means a surface is covered in white, powdery, waxy granules that reflect light in ways that often make the surface they are on appear blue. Certain grapes, plums, and blueberries are pruinose fruits. Certain lichens like the beautiful smoky eye boulder lichen have fruiting bodies (Apothecia) that are often pruinose.

Norway maple (Acer platanoides) is supposed to be a very invasive species but they’ve been used for years as landscape trees so the genie has been let out of the bottle and now there is no stopping them. Even squirrels don’t like these trees; last fall over several days I watched five or six squirrels cut all of the unripe seeds from a Norway maple. In just a few days the ground under the tree was littered with them and there wasn’t a seed left on the tree. The Norway maple’s terminal bud and stem are larger than the sugar maple’s, and its bud scales are fewer and colored a pleasing maroon. Sugar maples have twice as many bud scales and they are brown. Norway maple terminal buds are also rounded while those of sugar maple are sharply pointed. Norway maple is native to eastern and central Europe and western Asia, from France east to Russia, north to southern Scandinavia and southeast to northern Iran.

Red maple flower buds (Acer rubrum) are small and round or oval with short stalks and 4 pairs of bud scales. The bud scales are often purple and / or tomato red. They have a fine fringe of pale hairs on their margins. Red maples can be tapped and syrup made from their sap but the sap gatherers have to watch the trees carefully, because the sap can become bitter when the tree flowers. Seeing the hillsides awash in a red haze from hundreds of thousands of red maple flowers is a treat that I always look forward to. Unfortunately I’ve found that it’s almost impossible to capture that beauty with a camera.

I could look at a calendar to see when spring begins but I prefer watching the plants in the forest, because they’re rarely wrong. The terminal buds of shagbark hickory (Carya ovata) shown in the above photo are quite large and can fool you into thinking that they are swelling because of spring sap flow but no, they’re this way all winter.

Mountain ash buds (Sorbus americana) often look like they have a single cap like bud scale but they actually have several overlapping scales which are quite sticky. You have to look closely at buds to see what is really going on, so it helps to have a loupe or a macro lens.

For those who can’t see or don’t want to look at small buds fortunately there are big buds on plants like rhododendron. It also has imbricate buds that are large enough to see without magnification. Bud scales are modified leaves and some buds can have several, some have two, some have just one scale called a cap, and some buds are naked, with none at all.

I hope this little foray into the world of buds has left you wanting to go out and start looking a little closer at the branches of trees and shrubs in your own neighborhood. I started looking at our local trees years ago; right after the little paperback booklet in the above photo was published in 1968. I carried it in my back pocket and started trying to identify common trees that I already knew something about, like apples and maples. The booklet is still being published today and costs little, especially if you find it in a used bookstore. It is also online in PDF format.

If you are open to being taught by nature, go listen to the trees. ~Kenneth Meadows

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Time for a Climb

After putting together a post like the last one I did on lichens I needed to free up my mind a bit so I headed into the woods of Walpole to climb the High Blue trail. I had just been here in October but it wasn’t that cold then. My mission on this day was to see if the ski areas had started making snow.

It was definitely cold enough here to make snow. This shot is of some of the many bubbles I saw in the ice of a mud puddle.

Intermediate wood ferns (Dryopteris intermedia) were still nice and green but that was no surprise because it is one of our native evergreen ferns. It is thought that evergreen ferns get a jump on the competition in spring by starting photosynthesis earlier than their cousins.

A large tinder polypore (Fomes fomentarius) grew on a trail side tree. These bracket fungi produce spores at all times of year but through spring and summer studies have shown that they can produce as many as 800 million spores in a single hour. Its common name comes from its usefulness as tinder for starting fires. The 5000 year old “iceman” found preserved in ice and snow in the Italian Alps carried pieces of this fungus with him. It is also useful medicinally and is known to stop bleeding, so he might have used it both ways.

The small reflectors put on the trees by hunters reminded me that I probably wasn’t the only one in these woods. I was glad that I remembered to wear my bright orange hat and vest.

There are people who think that plants grow their buds when it warms up in the spring but most plants actually plan ahead and grow their spring buds in the fall. This hobblebush bud (Viburnum lantanoides) already has all it needs to produce a pair of new leaves and a beautiful head of white flowers next spring. Hobblebush buds are naked, meaning they have no bud scales to protect them from the cold, and that’s why they are furry. Hobblebushes are one of our most beautiful native viburnums and there are many of them in these woods.

Beech trees (Fagus grandifolia) also have their spring buds at the ready. They’re small now but they’ll grow bigger when it starts to warm up. When they break in spring beech buds are one of the most beautiful things you’ll find in a New England forest.

The farmer has cut all his corn for silage. This was a meadow for many years and it’s always a bit surprising for me to find a cornfield here now. The corn attracts bears and last year I saw several piles of their dung, but this year I didn’t see any. I’m hoping they found a different corn field.

There are game trails that lead from the meadow / cornfield into the woods. Do you see this one? It’s just a narrow trail but it is used regularly, especially by deer. When I come here in winter there are deer tracks everywhere up here.

I followed the game trail into the forest to see what I’d see and found a huge quartz boulder sitting on top of an old stone wall. How anyone ever lifted it up there is beyond me. It was at least 4 feet long and must have been very heavy.

There were also a lot of ears of corn along the game trail and even entire corn stalks pulled up by the roots. This is obviously where the animals come to eat it after they take it from the cornfield. I don’t know if a deer could pull up a cornstalk but a bear certainly could. I was hoping it was cold enough for them to be sleeping by now.

Back on the main trail the sun was shining brightly but not providing much warmth. It was probably about 40 degrees F. and that isn’t bad for the end of November but it still felt cold. November is said to be the cloudiest month but we’ve been lucky this year and have had quite a few sunny days.

One of the things I like about this time of year is how you can see so deeply into the forest now that there is no foliage to block the view. One of the things that is much easier to see now is the old stone wall that snakes through the woods. It’s a “tossed wall,” meaning that the stones were literally tossed or thrown on top of one another. Stones were not nice to plows and farmers wanted to get them out of their fields as quickly and efficiently as possible, and ringing the fields with them was the easiest way. In 1872 there were an estimated 270,000 miles of stone walls in New England. It’s hard to hike through a piece of forest these days without seeing at least one wall.

Walpole is famous among stone wall builders for its ledges which, with little effort, break into nice, flat slabs. The fractures happen naturally, as can be seen on this outcrop. This is very easy stone to build with and it makes a great looking wall.

This stone was taken from the ledge in the previous photo at some point in the past. It hasn’t been cut; this is how it comes right out of the ledge, and that’s what makes it so special. Building a wall with stone like this is a real pleasure but it doesn’t happen often. Usually the stones are rounded, so it takes much more time and effort to build with them.

The small pond on the summit was frozen over as I thought it would be. I used to think that the animals would suffer when the pond froze but there are many small streams nearby that run year round so they always have a place to get a drink.

The sign at the granite overlook tells you that you’ve arrived. High means the spot is higher than the surrounding terrain and blue means the view is very blue, and it always is.

It was a bit humid on this day and as it did the last time I was up here a haze blanketed the landscape, so even though the view across the Connecticut River Valley into Vermont was blue it wasn’t that good. Still, you could see Stratton Mountain so I couldn’t complain. The question was, would my camera be able to cut through the haze so I could see the ski area?

So far so good. Sometimes the camera really goes bonkers up here and I’m shocked by what I see when I get home, so I was hoping this wouldn’t be one of those days. I put it on “auto” for a few shots just to give it a chance to do what it wanted. It seems to have a mind of its own sometimes when capturing landscapes.

Though it is a blotchy photo it showed me that there was indeed snow on the ski trails, so after sitting and admiring the view for a bit, down I went. Before long this entire landscape will be snow covered and there won’t be any snowmaking required, so I was happy that I was still walking in crunchy leaves rather than squeaky snow. You know it’s cold when the snow squeaks underfoot.

Snow provokes responses that reach right back to childhood. Andy Goldsworthy

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Things I’ve Seen

Evergreen Christmas ferns (Polystichum acrostichoides) have just come up and this is one of the spring fiddleheads that I must have never paid attention to, because I was surprised to see it covered with silver hairs. I think its spiral shape is beautiful but it’s also common; spirals are used over and over in nature. Prehistoric people carved spirals into the walls of their caves and we have tiny spirals in our ears. Snail shells grow in spirals, millipedes curl into spirals, sunflower florets, grape tendrils and even entire galaxies are spirals. And no one knows why.

Spotted salamanders are burrowing creatures that spend much of their lives in burrows or under leaf litter, coming out only to eat and mate. I happened to be doing some digging at work and uncovered the salamander in the above photo. They like rainy weather in the spring, so they must be very pleased with this month so far. I left this one alone and it burrowed right back into the soil after a few moments.

It’s nice to see the chipmunks again. They’re very curious little creatures and will often follow along as you walk wooded trails. They live in stone walls when they can and when they hear you they’ll often come out of their burrows to see what you’re doing. That’s just what this one was doing when I took his photo. He sat there until I started walking and then hopped from rock to rock following me.

Fungi have started to make an appearance and the first I’ve seen is this brain fungus (Gyromitra esculenta) which is a false morel that often grows very near true morels. This is a problem because false morels can be toxic and true morels are not, so if you are a mushroom forager you’ll want to know each one well. An easy way to tell them apart is by the way the cap attaches to the stem. The brain fungus cap attaches only at the top of the stem, and a morel’s cap attaches to the stem over its full length. Cutting one in half lengthwise will tell the story. The brain fungus gets its common name from its reddish brown cap that resembles a brain.

White pines (Pinus strobus) seem to be doing well this year, showing plenty of new growth. The buds seen in this photo are called candles and will grow on to become new branches and needles. White pines are very common native trees here in New Hampshire. There are records of early colonial settlements being entirely wiped out by scurvy before Native Americans showed the settlers how to make tea from white pine needles. They are one of the richest sources of vitamin C found in nature. Native Americans used all parts of the tree and were said to value pines above any other plant.

Flowers usually appear just as leaf buds break but before the leaves fully develop on green ash trees (Fraxinus pennsylvanica.)  I think the ones shown here are male, because they are typically shorter and less showy than the female flowers. They have a tubular calyx and 2 stamens and are often purple tipped as those in the photo. Ash trees are sensitive to pollution, so seeing them is a good sign of clean air.

I’ve already shown photos of female box elder (Acer negundo) flowers recently but I turned a corner and there they were, hanging at eye level. I didn’t mind because I think the sticky lime green pistils are beautiful. One of the biggest trees I’ve ever seen was a box elder growing on the banks of the Connecticut River and that was odd because they’re considered a relatively short lived tree.

As I become more familiar with sedges I’m seeing more and more of them. I found the one in the above photo near a local pond. The male flowers are the creamy yellow parts at the top and the female flowers are the wispy white filaments along the bottom. The female flowers bloom first to catch pollen from other plants and then a few days later the male flowers start to shed pollen so the wind can take it to another plant. This ensures cross pollination and guards against self-fertilization. Sedges look like course tufts of grass but the flower stalks are triangular instead of round, and this leads to the old saying “sedges have edges.” They are gaining popularity as garden plants and some even use them in place of a lawn. I haven’t been able to identify this one yet.

Tent caterpillars were just leaving their nest when I happened along. The moth that laid the eggs on this tree was a species of moth in the family Lasiocampidae, which lays its eggs almost always on plants in the rose family, like cherry and apple trees. The eggs hatch just as the new buds appear on the tree and the caterpillars feed three times each day, just before dawn, at midafternoon, and in the evening after sunset. Cherry leaves contain toxic compounds that the caterpillars absorb so most birds won’t touch them, and that’s the reason for their great success. They can defoliate a tree and this will weaken it, because without leaves it can’t make the food it needs. Most trees will recover, but they won’t look too good while they do.  People often confuse tent caterpillars with fall webworms, but fall webworms don’t cause any real damage because the trees they appear on have usually stopped photosynthesizing and no longer needs the leaves that the caterpillars eat.

I noticed that this ladybug on a beech bud had a large black spot on the rear of its shell that looked like damage. I tried to find information on ladybug diseases but didn’t have much luck.

Here’s another look at the damaged ladybug. Not only did its shell have a black spot, it looked like it had been dented as well. Ladybugs eat many insects that can damage plants so I hope there aren’t any diseases spreading among them. Maybe a bird caused the damage. Whatever it was didn’t seem to hinder its movement; it crawled along the beech bud as if the wind were at its back. When it reached the very tip it turned and went back just as quickly, and I wondered if what was damaged was its sense of direction.

The reason I found the ladybug was because I was in the woods looking for one of the most beautiful signs of spring. Angel wings are what newly unfurled beech leaves (Fagus grandifolia) remind me of, with their fringe of soft silvery, downy hairs. Each spring I check the buds once or twice a week to see if the typically arrow straight buds are curling, because that’s the sign that they’ll open before long.  After they’ve started to curl they’ll also start to swell up, and that’s when I start checking them every other day. This beauty happens quickly and is easily missed.

Beech (and other tree) bud curling is caused by the cells on the sunny side of the bud growing faster than those on the shaded side. This creates a tension that curls the bud and eventually causes the bud scales to pull apart so the leaves can emerge. At the bud’s location on the tree branch an entire year’s new leaves and stems will often grow from a single bud, as can be seen in the above photo. It’s incredible to think that all of that growth came from a single bud in just a matter of days.

Oak leaves are usually one of the last to appear, so I was surprised to see these new leaves. The weather is fooling us all I think, but it’s a great opportunity to see what in nature is triggered by warmth and what is triggered by day length.

The woods are full of beautiful things that you’ve never seen and won’t ever imagine and I hope you’ll have a chance to go and see them for yourself.  As I’ve said here before; I can’t tell you what you’ll see but I can guarantee that you’ll never regret seeing it.

Some of the best advice you will ever hear will come from the forest. ~Dacha Avelin

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Another Taste of Winter

Before our recent 5 inch snowstorm and two nights of record breaking cold I thought I’d try again to get a decent photo of a red maple (Acer rubrum) in flower. The above is my latest attempt. If you can imagine the scene repeated thousands of times side by side you have an idea what our hillsides and roadsides look like now. It appears as a red haze in the distance.

The female red maple flowers are about as big as they’ll get and if pollinated will now turn into winged seed pods called samaras. Many parts of the red maple are red, including the twigs, buds, flowers and seed pods.

The leaves of the red elderberry (Sambucus racemosa) look like fingers as they pull themselves from the flower bud and straighten up. Bud break comes very early on this native shrub. The purplish green flower buds will become greenish white flowers soon, and they’ll be followed by bright red berries. The berries are said to be edible if correctly cooked but since the rest of the plant is toxic I think I’ll pass.

Last spring the first daffodil blossom didn’t appear on this blog until April 18th. This year they are over a month earlier, but the snow and colder temperatures have fooled them. Plants don’t get fooled often but it does happen.

I was surprised to see Pennsylvania sedge (Carex pensylvanica) in full bloom because when I went by here a week ago there wasn’t a single sign of flowers. This sedge doesn’t mind shade and will grow in the forest as long as it doesn’t get too wet. It likes sandy soil that dries quickly.

Creamy yellow male staminate flowers release their pollen above wispy, feather like, white female pistillate flowers but the female flowers always open first to receive pollen from a different plant. As the plant ages the male flowers will turn light brown and the female flowers, if pollinated by the wind, will bear seed. It’s a beautiful little plant that is well worth a second look.

Our American hazelnut (Corylus americana) shrubs are still blossoming as the above photo of the female blooms show. They are among the smallest flowers I know of, but getting a photo so you can see them up close is usually worth the effort.

The local college planted a bed of hyacinths. I love their fragrance.

I like to see the deeply pleated leaves of false hellebore (Veratrum viride) in the spring. This is another plant that seemed to appear overnight; last week there was no sign of them here. False hellebore is one of the most toxic plants known, and people have died from eating it by mistaking it for something else. It’s usually the roots that cause poisoning when they are confused with ramps or other plant roots.

There is a very short time when the first leaf of skunk cabbage (Symplocarpus foetidus) really does look like cabbage but you wouldn’t want it with your corned beef. It comes by its common name honestly because it does have a skunk like odor. Whether or not it tastes like it smells is anyone’s guess; I don’t know anyone who has ever eaten it. I’ve read that eating the leaves can cause burning and inflammation, and that the roots should be considered toxic. One Native American tribe inhaled the odor of the crushed leaves to cure headache or toothache, but I wonder if the sharp odor didn’t simply take their minds off the pain.

I was happy to see trout lily leaves. Surely the yellow bronze buds and the spring beauties can’t be far behind. I learned by trying to get a sharp photo of this leaf that it couldn’t be done, on this day by my camera anyhow. Though everything else in the shot is in focus the leaf is blurred and it stayed blurred in close to twenty shots. I wonder if it isn’t the camouflage like coloration that caused it. I’ve never noticed before if they did this or not and I’d be interested in hearing if anyone else had seen it happen.

On the day of our recent snowstorm forsythia was blooming well, but on the day after not a blossom could be seen. Luckily most of the shrubs hadn’t bloomed yet, but I don’t know if the cold nights hurt the buds or not.  I’ll check them today.

Forsythia is over used and common but it’s hard to argue that they aren’t beautiful, and seeing a large display of them all blooming at once can be breath taking.

The lime green, sticky pistils of female box elder flowers (Acer negundo) often appear along with the tree’s leaves, but a few days after the male flowers have fully opened, I’ve noticed. In the examples shown here they were just starting to poke out of the buds. They’re beautiful when fully open and I hope to see some this weekend. Box elders have male flowers on one tree and female flowers on another, unlike red maples which can have both on one tree. Several Native American tribes made sugar from this tree’s sap and the earliest known example of a Native American flute, dating from 620-670 AD, was made from its wood.

Lilac leaf buds are opening but I haven’t seen any colorful flower buds yet.

In the spring as the sun gets brighter and the days grow longer light sensitive tree buds can tell when there is enough daylight for the leaves to begin photosynthesizing, so the buds begin to break. Bud break is defined as “when the green tip of a leaf can be seen emerging from the bud” and this can be a very beautiful thing. American beech (Fagus grandifolia) bud break begins when the normally straight buds start to curl, as in the above photo. The curling is caused by the cells on the sunny side of the bud growing faster than those on the shaded side. This creates a tension that curls the bud and eventually causes the bud scales to pull apart so the leaves can emerge. At the bud’s location on the tree branch an entire year’s new leaves and stems will often grow from a single bud. Last year beech bud break didn’t start until May, so I think the example in this photo is a fluke. Others I saw had not curled yet.

The buds of our native viburnum that we call hobblebush (Viburnum lantanoides) has naked buds, meaning that there are no bud scales encasing the leaf and flower buds to protect them. Instead this shrub uses dense hairs. As the weather warms the leaf buds grow longer and the flower buds swell, and the above photo shows a growing and expanding leaf bud.

I love the color of the flower buds on this magnolia. It grows at the local college and I don’t know its name. As magnolias go it’s a small tree.

One of the spring flowering bulbs I most look forward to seeing each year is striped squill. The simple blue stripe down the middle of each white petal makes them exceedingly beautiful, in my opinion. The bulbs are hard to find but they are out there. If you’d like some just Google Puschkinia scilloides, var. libanotica and I’m sure that you’ll find a nursery or two that carries them. They are much like the scilla (Scilla siberica) that most of us are familiar with in size and shape but they aren’t seen anywhere near as often and border on rare in this area. The example pictured here grows in a local park and they were blooming a full month earlier than last year. I’ll have to go see what the cold did to them, if anything.

I’ve heard that Michigan, Illinois, Ohio, and virtually all of New England are having the same on again / off again spring with snow and cold, so we all just wait confident that it will happen eventually. In 1816 there was a “year without a summer” when snow fell in June and cold killed crops in July, but that was an anomaly caused by volcanic activity that will surely not happen again. At least we hope not.

Despite the forecast, live like it’s spring. ~Lilly Pulitzer

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Buds

Each year at around this time I get an urge to start looking at the buds of our trees and shrubs to see if there are any signs of swelling. I could look at a calendar to see when spring begins but I prefer watching the plants in the forest, because they’re rarely wrong. Since I read in a local paper that maple sap had started flowing because of a warm December I had to go see for myself. The terminal buds of shagbark hickory (Carya ovata) shown in the above photo are quite large and can fool you into thinking that they are swelling because of spring sap flow but no, they’re this way all winter.

Why do I care about watching buds swell? Because beautiful things come from them, like the newly opened bud of the shagbark hickory in the above photo shows. This photo is from a previous blog post of nearly 2 years ago. Unfortunately I won’t get to see this in person again until about mid-May but since it’s one of the most beautiful sights in the spring woods, it’s worth waiting for.

If you’re not sure if what you’re seeing is a shagbark hickory bud just look at the bark. It’s obvious where the name shagbark comes from.

Hickory buds are some of the largest buds I’ve seen but some of the smallest belong to hawthorns (Crataegus) and the cherry red hawthorn bud in the above photo could easily hide behind a pea. There are over 220 species of hawthorn in North America, with at least one native to every state and Canadian province. In New Hampshire we have 17 species, so the chances of my identifying this example are slim to none. The closest I can come is Gray’s hawthorn (Crataegus flabellata.) I know the tree in the photo well so I know that its blossoms will be white.

If you can’t identify a hawthorn by its buds then its thorns will help. On this example they were about 2 inches long and just as sharp as they look.

Bud scales are modified leaves that cover and protect the bud through winter. Some buds can have several, some have two, some have just one scale called a cap, and some buds are naked, with none at all. Buds that have several scales are called imbricate with scales that overlap like shingles. A gummy resin fills the spaces between the scales and makes the bud waterproof. This is especially important in cold climates because water freezing inside the bud scales would destroy the bud. The lilac bud (Syringa vulgaris) in the above photo is a good example of an imbricate bud.

Highbush blueberry (Vaccinium corymbosum) buds are also imbricate buds. It’s interesting that almost everything about the blueberry is red except for its berry. The new twigs are red, the bud scales are red, and the fall foliage is very red.

Buds with just two (sometimes three) scales are called valvate. The scales meet but do not overlap. This Cornelian cherry bud is a great example of a valvate bud. In the spring when the plant begins to take up water through its roots the buds swell and the scales part to let the bud grow. Some bud scales are hairy and some are covered with sticky resin that further protects the bud.

Cornelian cherry (Cornus mas) is an ornamental flowering shrub related to dogwoods. It blooms in early spring (in March) with clusters of blossoms that have small, bright yellow bracts.

Native nannyberry buds (Viburnum lentago) are also examples of valvate buds. These buds always remind me of great blue herons or cranes. I think I might have misidentified several nannyberry berries as shadbush berries earlier last fall, so I’m counting on the buds to tell me for sure what they are. If they look like the above example they are sure to be nannyberry. If it wasn’t so icy right now I’d go and find out.

Magnolia flower buds in botanical terms are “densely pubescent, single-scaled, terminal flower buds.” The hairy single scale is called a cap and it will fall off only when the bud inside has swollen to the point of blossoming.

Red maple flower buds (Acer rubrum) are small and round or oval with short stalks and 4 pairs of bud scales. The bud scales are often purple and / or tomato red. They have a fine fringe of pale hairs on their margins. Red maples can be tapped and syrup made from their sap but the sap gatherers have to watch the trees carefully, because the sap can become bitter when the tree flowers.  I didn’t see any sign of these buds swelling but I hope they will soon. Seeing the hillsides awash in a red haze from hundreds of thousands of red maple flowers is a treat that I always look forward to. Unfortunately I’ve found that it’s almost impossible to capture that beauty with a camera.

Box elder buds (Acer negundo) and young twigs are often a beautiful blue or purple color due to their being pruinose. Pruinose means a surface is covered in white, powdery, waxy granules that reflect light in ways that often make the surface they are on appear blue. Certain grapes, plums, and blueberries are pruinose fruits. Certain lichens like the beautiful smoky eye boulder lichen have fruiting bodies (Apothecia) that are often pruinose.

Another bud I’m looking forward to seeing open is the beech (Fagus grandifolia.) There are beautiful silvery downy edges on the new laves that only last for a day or two, so I watch beech trees closely starting in May. Botanically beech buds are described as “narrow conical, highly imbricate, and sharply pointed.”

I went out to look at buds but never expected to see any of them actually opening on January 30th, so you could have knocked me over with a feather when I found this vernal witch hazel (Hamamelis) with its petals just peeking out of its flower buds. We’ve had above average temperatures every month since November and have been 6 degrees above normal for January, but I think this shrub might be jumping the gun just a bit. It lives in a local park and I don’t know its name, but it’s a real beauty when it’s all in bloom in the spring. Since it’s blooming now the question is will it still bloom in spring?

As if the witch hazel blossoms weren’t enough there were daffodils out of the ground a short distance away, and I started feeling like I had fallen down the rabbit hole. Plants can and do get fooled but not often. Right now most of the signs are pointing to an early spring and even Punxsutawney Phil, the weather predicting groundhog in Punxsutawney Pennsylvania, says spring is right around the corner.

I hope this little foray into the world of buds has left you wanting to go out and start looking a little closer at the branches of trees and shrubs in your own neighborhood. I started looking at our local trees years ago; right after the little paperback booklet in the above photo was published in 1968. I carried it in my back pocket and started trying to identify common trees that I already knew something about, like apples and maples. The booklet is still being published today and costs little, especially if you find it in a used bookstore. It is also online in PDF format, and you can find it by clicking on the word HERE.

Winter is on my head, but eternal spring is in my heart. ~Victor Hugo

Thanks for coming by.

 

 

 

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