Feeds:
Posts
Comments

Posts Tagged ‘Mountain Ash Buds’

I’ve seen some glorious sunrises lately. This one reminded me of the old “Red sky in the morning, sailors take warning” saying, which is based in fact. According to Wikipedia “If the morning skies are red, it is because clear skies over the horizon to the east permit the sun to light the undersides of moisture-bearing clouds.” The concept is over two thousand years old and is even referenced in the New Testament, so sailors have been paying attention to the skies for a very long time.  

I like looking for patterns in ice and I thought I saw the Statue of Liberty’s Crown in this puddle ice. The whiter the ice, the more air bubbles were trapped in it when it froze. That explains the color, but what explains the long, needle like crystals and the strange pinging noise it makes when it breaks? There might be answers to those questions out there, but I still haven’t been able to find them.

Winterberries (Ilex verticillata) are a native holly that love wet feet so I look for them in swamps and along streams.  Conditions must have been perfect for them this year because I’ve seen more berries on them than I ever have. Robins, catbirds, mockingbirds, Eastern bluebirds, and cedar waxwings all eat them so this year they’ll eat well.

Spindle berry is native to Europe but we have a native version called eastern wahoo (Euonymus atropurpureus,) and I think this plant is probably the native version. The photo above is of its interesting bright red fruit, which many birds eat. I watched a pair of blue jays eating the fruit just the other day, in fact. Though Native Americans used the bark, leaves and fruits medicinally  all parts of this plant are considered poisonous if eaten. Wahoo was their name for the shrub.

When young yellow hawkweed seedlings (Hieracium caespitosum) look like the above photo; very hairy. And when it gets cold the leaves will turn purple unless covered by snow. When covered the leaves will often stay green all winter and there are thousands of them in a meadow where I work. Hawkweeds were used in Europe to treat lung disorders, stomach pains, cramps, and convulsions. Native Americans used our native hawkweeds in chewing gum.

I know I showed Mount Monadnock in my last post but I’m showing it again because I just heard that a man had to be rescued from the summit recently. Unfortunately this has become a common occurrence that is expensive and dangerous for rescuers. It usually happens because people simply aren’t prepared for the weather conditions up there. They get wet, cold, and find themselves in serious trouble. People have died on that mountain, so if you plan on climbing it please do some research and stay safe. By the way, all the snow in this photo is gone now but it’s still mighty cold up there. For a current forecast visit https://www.mountain-forecast.com/peaks/Mount-Monadnock/forecasts/965

Virgin’s bower (Clematis virginiana) grows long feathery filaments called styles on its seeds (fruits) so the wind can carry them long distances. Virgin’s bower is our native wild clematis vine that blooms anytime from July through September. Botanically speaking these “seeds” are achenes, which are fruits with one seed. This is a common plant seen draped over shrubs and climbing into trees all along these tracks. What is uncommon is its pretty star shaped seed head. The hairy looking seeds give it another common name: Old Man’s Beard.

I think this is the worst tree wound I’ve ever seen. Though dead now the tree lived like this for many years. It showed me that the natural drive to live is very strong among all living things.

I saw a familiar black growth on a fallen beech limb (Fagus grandifolia) that I recognized as an unusual little fungus that I had seen before.

Annulohypoxylon cohaerens fungi like beech trees and that’s where I always find them. They start life brown and mature to the purplish black color seen in the photo, and always remind me of tiny blackberries. Each small rounded growth is about half the diameter of a pea and their lumpy appearance comes from the many nipple shaped pores from which the spores are released. The fruiting bodies seen here are described as “cushion like round or flask shaped masses of fungal tissue with nipple or pustule shaped pores.” It took me about three years to be able to identify this fungus, so you have to be persistent in nature study.

Another black fungus found on trees is the bootstrap fungus. It is caused by honey mushrooms (Armillaria mellea), which are parasitic on live wood and send out long root like structures called rhizomorphs between the wood of a tree and its bark. When fresh the rhizomorphs are cream colored but darken to brown or black as they age. The fungus is also called armillaria root rot or shoestring root rot. It causes a white pulpy rot in the wood and kills many species of both soft and hardwood trees.

Fungal spores can enter trees through wounds in the bark, like sapsucker holes for instance. Yellow bellied sapsuckers are in the woodpecker family but unlike other woodpeckers they feed on sap instead of insects. They drill a series of holes in a line across the bark and then move up or down and drill another series of holes before moving again, and the end result is usually a rectangular pattern of holes in the bark. They’ll return to these holes again and again to feed on the dripping sap. Many small animals, bats, birds and insects also drink from them, so these little birds help out a lot of their forest companions.

Many ash trees have black winter buds, like black ash for instance, but I know this one by its fruit and it is a native mountain ash. It grows in a very un-mountain like wet place and because of that I think it suffers. It seems a weak, sickly tree and I didn’t know that its buds also looked sickly until I took this photo. It does bear a limited amount of fruit though, so it’s obviously trying.

But none of that was the actual point of taking this photo; I took it so I could tell you that the best way to start learning to identify trees when they are leafless is to find a tree with prominent or unmistakable features (like buds) and start there. Once you’ve learned all you can from that tree choose another. Sooner or later you’ll notice similar patterns among tree species and that will make them even easier to identify.

Shrubs too, can teach. I can’t think of another shrub with chubby purple buds like those found on the red elderberry (Sambucus racemosa.) In spring the outer purple bud scales will open and show the green inner bud and they will be very beautiful in their purple and green stripes. A bud scale is made up of modified leaves or stipules that cover and protect the bud in winter. Usually the number of bud scales surrounding a bud will help identify a tree or shrub.

A bud I most look forward to seeing open in the spring is the beech (Fagus grandifolia.) There are beautiful silvery downy edges on the new leaves 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.” An imbricate bud is a bud with numerous scales that overlap each other like shingles. In May they are one of the most beautiful things in the forest.

The inner bark on dead staghorn sumacs can be a beautiful bright, reddish orange color in the winter. I’ve read descriptions that say the inner (live) bark is “light green and sweet to chew on,” but no reference to its changing color when it dries, so it is a mystery to me. The plant is said to be rich in tannins and I do know that dyes in colors like salmon and plum can be made from various parts of the plant, including its bark.

I’ve seen various animals and even beautiful Hindu dancers in grape tendrils but in this one all I see is infinity, because it doesn’t seem to have a beginning or an end. A grape tendril is a flower stalk that has evolved into a grasping support to get the vine into the bright life giving sunshine at the tops of trees. They bend in the direction of touch so if the wind happens to blow them against a branch they will twist spirally around it. In a vineyard they usually point to the north.

I like the warm, rich brown of oak leaves in the winter. These were curled together in a hug, as if to keep each other warm.

Honey locust (Gleditsia triacanthos) seed pods covered the ground under an old tree and I was glad I wasn’t the one who had to rake them all up. When the seed pods are green the pulp on the inside is edible and very sweet, while the pulp of the very similar black locust (Robinia pseudoacacia) is toxic. One good way to tell the two trees apart is by the length of their seed pods; honey locust pods are much longer and may reach a foot in length, while black locust pods only grow to about 4-5 inches long. Honey locust seed pods look a lot like giant flat string beans about 9-12 inches long and often curled. Some of them look like polished mahogany and others can be purple. Beautiful white, fragrant flowers cover these trees in late spring. Locusts are legumes, in the pea family. Deer love the seed pods.

Honey locust thorns grow singly and can be 3 to 6 inches long. They will sometimes branch like the example in the photo. These thorns are big and as hard as iron. They can reach 6 inches in length and poke right out of the bark of the tree along its branches and sometimes even the main trunk. They are tough enough to puncture shoe soles and I always watch my step when I walk under one of these trees because thorns like these can cause a nasty wound. In the past the hard thorns of the younger trees were used as nails. Confederate soldiers once used them to pin their uniforms together and survivalists still use them as fish hooks, spear heads, nails, sewing needles and even small game traps. Native Americans used the wood to make bows, and medicines were made from various parts of the plant.

Go to the winter woods: listen there; look, watch, and ‘the dead months’ will give you a subtler secret than any you have yet found in the forest. ~ Fiona Macleod

Thanks for coming by.

 

Read Full Post »

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

Thanks for coming by.

Read Full Post »