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Posts Tagged ‘Clubmoss’

Last Saturday I walked along the Ashuelot River in Keene, hoping to find some marsh bellflowers. As this photo shows, I sure found plenty of pickerel weed (Pontederia cordata.) Beautiful ribbons of it lined the banks. They are probably why I see so many ducks and geese here. Ducks eat the seeds and geese eat the leaves.

The water was about as high as it gets thanks to some very heavy rain throughout the month of July. Another foot or so higher and in places it would have been over the trail.

Luckily most of the trail stays high and dry but I found the side trail I needed to use to see the marsh bellflowers was under about 6 inches of water, so I couldn’t get to them or the mad dog skullcap plants that live there. With my lungs I can’t be falling into rivers. I doubt I could swim ten strokes.

I did see a buttonbush shrub (Cephalanthus occidentalis) up to its neck in water but it was blooming. I know another plant along the river in Swanzey that is sometimes under water when the river is high, but it doesn’t seem to bother it.

The small flowers of tall blue lettuce (Lactuca biennis) are more white than blue this year from what I’ve seen so far. This plant has an odd look, sometimes reaching ten feet tall with flowers hardly bigger than a pencil eraser at the very top. Luckily this flower was just about at eye level, because the stalks of this plant don’t take kindly to being bent. They’ll often snap right in two.

I’ve seen thousands of Joe Pye weed (Eutrochium purpureum) buds this year but not a single flower yet. That’s okay with me though, because I’ve always thought the buds were as pretty as the flowers. They seem to have a deeper color.

There is a bumper crop of blueberries this year. The bushes are loaded with berries anywhere I go so all the critters will be happy. I’ve noticed that the birds aren’t paying much attention to them yet though.

Fringed loosestrife (Lysimachia ciliata) grew here and there but it doesn’t seem to be doing well along this trail this year. The plants looked a bit weak and kind of ragged.

I saw quite a lot of Indian cucumber root (Medeola virginiana) plants along the trail but this was the only one I saw with fruit. After a time these green berries will become deep, purple-black. And then they’ll disappear. I think turkeys get them before anyone else. A good healthy plant can stand just about as tall as a turkey’s eye is from the ground.

As I say every year; spring and fall begin on the forest floor. This Indian cucumber root illustrates what I mean.

“But it’s only August,” you say. “Surely the Indian cucumber root was a fluke?” Unfortunately, that argument can’t stand; this tall meadow rue (Thalictrum pubescens) also whispered hints of fall.

And so did this sarsaparilla (Aralia nudicaulis.) Soon all of the squirrels and chipmunks will be gathering their nuts and seeds. Who needs a calendar?

I couldn’t decide which was prettier, this royal fern or its shadow, so I took a photo of both.

A depression in the woods was filled with water but the water had a strange cloudy film on it. I don’t think I’ve ever seen this before and I can’t imagine what caused it, way off in the woods like it was. It wasn’t oily and it didn’t look like dust. I thought of mushroom spores but it would have taken a lot of mushrooms to do this.

Clubmosses also release spores that float on water but not this one. It looked like it was finished. An interesting thing about clubmoss spores is how, if you fill a glass with water and cover the surface of the water with spores, when you stick your finger in the water and pull it out again it will be covered in spores but will be perfectly dry. Clubmoss spores are waxy and hydrophobic, which means resistant to water. They are also extremely flammable, and once made up the flash powder used to create the flash photographers used to take a photo.

The oak tree that the beavers girdled is done. I don’t know why beavers do this to trees and then leave them standing. After all, the succulent buds and branches are a big reason why they cut trees.

There won’t be any buds on this tree, and the branches will be dry. There wasn’t a leaf on them. Soon the dead branches will begin to fall, and they’re right above the trail.

It’s really too bad that beavers don’t eat Canada mayflowers, because there are many thousands of them on the floor of any forest I visit. They’re a native plant but they act like an invasive plant by creating monocultures that keep other plants from growing. I’ve seen huge stands of nothing but Canada mayflower. And may heaven help you if they get into your garden. Those speckled berries will be bright red and ripe soon, and they’ll disappear quickly.

The closed or bottle gentians (Gentiana linearis) that grow in one spot along the trail looked to be in good shape. Narrow leaf and closed gentian flowers look identical, so you have to look at the leaves carefully to tell the difference. Closed gentian leaves are wider and have a different overall shape than those of narrow leaf gentian. This plant is relatively rare in this area.

And there was the bridge. It crosses what is usually a small stream but on this day the water was licking at its sides. The water level in the river hasn’t dropped much and we’ve had more rain since that day, so I hope it hasn’t washed away.

This photo from last year shows the marsh bellflower (Campanula aparinoides) I came to see. I hoped to get some better shots of the flowers but that probably won’t happen this year without a boat, because it just keeps on raining. Luckily this plant is a perennial so unless the entire riverbank where it grows washes away, I should be able to find it next year. I can’t say how rare it is but I’ve never seen it anywhere but here in this one spot, and I’ve been walking these riverbanks for over 50 years.

Pleasure is spread through the earth in stray gifts to be claimed by whoever shall find them. ~William Wordsworth

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Last Sunday I decided, for no particular reason, to visit Goose Pond in Keene. This was my favorite view from that outing.

Goose pond is part of a five hundred acre wilderness area that isn’t that far from downtown Keene. It  was called Crystal Lake and / or Sylvan Lake in the early 1900s. The pond was artificially enlarged to 42 acres in 1865 so the town of Keene would have a water supply to fight fires with. Wooden pipe fed 48 hydrants by 1869 but the town stopped using the pond as a water supply in the 1930s, and in 1984 it was designated a wilderness area. The vast forest tract surrounding the pond has been left virtually untouched since the mid-1800s, and it is indeed wilderness.

This is one of many approaches to the pond. It’s the one I usually take, which is steadily uphill but not too exhausting.

I was surprised to see shining sumac (Rhus copallinum) here. I’ve only seen this plant in two or three other places so it seems to be on the rare side in this area. It is also called flame leaf sumac, dwarf sumac, or winged sumac. This example had been cut and was only knee high but I’ve read that they can reach about 8-10 feet. The foliage turns a beautiful, brilliant orange-red in fall.

I thought this witch hazel was rushing the season just a bit.

I saw one of the biggest pink lady’s slippers (Cypripedium acaule) I’ve ever seen on this day. The plant was probably twice the size of my hand with its big leaves when usually they are barely as big as your hand. There was no flower of course but there was a seed pod.

And here is the seed pod, with what is left of what appears to be a very large flower dangling from its end. These seed pods contain between 10,000 and 20,00 tiny, dust like seeds. According to the U.S. Forest Service “The seeds require threads of a fungus  in the Rhizoctonia genus to break them open and attach them to it. The fungus will pass on food and nutrients to the pink lady’s slipper seed. When the lady’s slipper plant is older and producing most of its own nutrients, the fungus will extract nutrients from the orchid roots. This mutually beneficial relationship between the orchid and the fungus is known as “symbiosis” and is typical of almost all orchid species.” This is why it is waste of time to collect orchids or orchid seed from the wild and expect them to grow in your yard.

The various views of the water from along the trail were very pleasing on this day. This is a not very good shot of the island that I took with my phone. I wanted to keep it because I camped on islands in a few different area lakes when I was younger, but never this one. There was a chance of thunderstorms on this day and the island reminded me that there’s nothing quite like riding out a thunderstorm on an island in the middle of a lake. There’s nowhere to run and nowhere to hide but when it’s over you feel more alive than you’ve ever felt.

This old tree stump showed that the water level had dropped about an inch, despite recent rains. The photo made it look almost as if the scene were floating in the sky.

For the first time ever I saw new spring, purple colored seed cones on an eastern hemlock. I was stunned, since my house is virtually surrounded by the trees. I think I’m always more amazed by what I don’t see than what I do. I can’t explain how I’ve missed them all these years, but they are the smallest cones of any conifer in this region.

Goose pond is unusual because it has a wide trail that goes all the way around it. This part of the trail is really much darker than my cell phone made it look.

There are two or three bridges here to help one across inflowing streams but there are also other crossings that have wet stones instead of bridges, so sturdy waterproof hiking boots are a good idea here. Walking poles too if your balance isn’t what it once was.

Most of the streams aren’t that deep but if you step in the right spot you might find water pouring into your boot.  

Brittle cinder fungus (Kretzschmaria deusta) starts life as a beautiful gray and white crust-like fungus in the spring, but before long it grows into something quite different.

As this photo taken a few years ago shows, a brittle cinder fungus like that shown in the previous photo becomes what looks like a shiny lump of coal. Though I’ve only seen this fungus on standing dead trees and logs it will attack live trees and is said to be aggressive. Once it gets into a wound on the tree’s roots or trunk it begins to break down the cellulose and lignin and causes soft rot. The tree is then doomed, though it may live on for a few to even several more years.

Blue flags (Iris versicolor) bloomed here and there at the edge of the water.

They were just about at the end of their run and looked a bit ragged, but still beautifully colored.

This is a time of year when we see heavy pollen production, especially from white pine trees. A lot of that pollen falls onto the water of ponds and lakes and will collect in the shallows. This frog didn’t look too happy about it.

Northern bush honeysuckles (Diervilla lonicera) were showing their tubular, pale yellow flowers. This low growing shrub is interesting because of its orange inner bark. It isn’t a true honeysuckle, but gets its common name from its opposite leaves that resemble honeysuckles. It’s a pretty little thing that is native to eastern North America.

What I think was a red spotted purple butterfly ( Limenitis arthemis astyanax) landed on a log a few feet away but it didn’t turn to give me a chance for a good shot. It wanted to look rather than to be looked at, so I didn’t bother it and let it look. I hope one of its cousins will be more willing to have its photo shown here in the future.

There are quite a few stands of hobblebush (Viburnum lantanoides) here and, though most had been heavily browsed by deer or moose, this one had produced berries. They’ll go from green to red to finally a deep purple. In this photo you can see the dark wire-like stems of hobblebush, which gets its name from the way it can “hobble” or trip up a horse. (Or a man.) Viburnums have been used by man in many ways since before recorded history. The 5,000 year old “Iceman” found frozen in the Alps was carrying arrow shafts made from a European Viburnum wood.

I though this clubmoss was beautiful with its ring of lighter new spring growth.

This is just another of far too many photos of the pond that I took. It’s hard not to admire such a beautiful, pristine place.

I usually go clockwise around the pond and when I do that, this odd stone is one of the last things I see before arriving back where I started. The soil has finally washed away from the far end enough so I could see that it’s only about a foot and a half long. It has been cut, and is faced of all four sides with sharp, 90 degree corners. It’s far too short to be a fence post but in the 1800s people didn’t spend hours of their time working on something like this for no reason, so it was used for something. How it ended up out here partially buried in the middle of the trail will always be a mystery.

Goose pond is a great place to have a hike, especially in the morning. It can get quite warm even in a forest and this day was like that even though I was there by 9:30 am. It takes me about two hours to hike all the way around the pond but I can see a teenager doing it in maybe 30 minutes. It depends on how many things you stop to admire. There are people fishing and swimming and dog walking and even bike riding but all in all it’s a quiet, enjoyable place for a walk or for even simply sitting and enjoying nature. Beside the stream in this photo would be a great place for that.

Go slow, my life, go slow. Let me enjoy the beauty of silence, serenity, and solitude. ~Debasish Mridha

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As soon as I mentioned spring in a blog post winter returned and we’ve had a cold, snowy week. Last Saturday it was cloudy but not too cold at 37 degrees F. when I went to play on the banks of the Ashuelot River in Swanzey. I’ve been playing on these river banks my entire lifetime and I’ve seen a lot of trees in the river, but I’ve never seen one actually fall in. That leaning white pine over on the left is going to fall in any time now, I’d guess, but I doubt I’ll see it happen. Once it falls in it might be in this spot for a year or two or maybe more, but eventually the river will flood and off it will go on its journey to the Atlantic. White pines are our tallest trees and I’m guessing that this one is over 100 feet tall.

Ice baubles that would have been more at home on a chandelier hung from the slab of ice that had formed over a stone.

They hung from anything close enough for the river to touch.

Just like a candle dipped in hot wax the waves engulf an icicle again and again, depositing a new layer of ice each time. The excess water runs down its length and pools there, creating the fat bottom just above the water. In this shot the point from where the bauble dangles doesn’t look very strong.

Last Monday the temperatures fell into the single digits F. and the wind roared with 60 mile per hour gusts. After that it was snowy all week and cold enough to keep the snow from melting. Everything that fell stayed right where it landed.

And the snow on tree trunks marked the direction the wind had blown it in from.

I saw lots of beaver activity here. They had sampled this young beech at might have come back and cut it down that night.

Sometimes a beaver will sample a tree and find it not to its liking, and leave it alone.

But usually they know what they’re cutting and they cut down trees and haul them away. They like beech and I’ve seen them cut huge old trees down to get at the upper branches.

The chips the beaver left behind looked like the same things a pileated woodpecker would have left but I didn’t find any woodpecker damage on any of the nearby trees.

I’ve noticed many times that fallen oak limbs have a golden color on their bark. What I don’t know is if this happens when the branch dies or is it there when they’re alive. I’ve cut down and cut up oak trees but I’ve never noticed the color on a fresh limb.

Fallen oak limbs often have jelly fungi on them, especially amber jelly fungi (Exidia recisa) like that seen here. This one was about the size of a nickel and frozen solid. Once it thaws it will grow on as if nothing ever happened. It’s the only jelly fungus I know of that holds its size when it dries out. Most shrivel down into little chips on the bark.

I love the soft brown color of last year’s oak leaves and the way they curl together as if hugging to keep each other warm.

I think the fungus on this tree was conifer parchment fungus (Stereum sanguinolentum,) which I’m seeing a lot of this year. It is also called bleeding parchment because of the blood red liquid it exudes when damaged but this example was very dry. The fungus causes heart rot and means a death sentence for a conifer. I’ve seen this fungus in just about every bit of woodland I’ve been in recently and after not seeing it for years, that seems strange. It’s almost like an outbreak.

Milk white toothed polypore was dry enough to be almost unrecognizable but I’ve seen it enough to know what I was looking at. This crust fungus has ragged bits of spore producing tissue that hang down and look like teeth, and that’s where part of its common name comes from. This common fungus can usually be found on the undersides of hardwood branches.

Common ground pine (Lycopodium dendroideum) is a clubmoss and has nothing to do with pines. It also has nothing to do with moss; it’s a vascular plant that produces spores instead of flowers. The spores are produced in the yellowish “clubs” called strobili. In this photo the strobili are still tightly closed. When they open to release the spores they have a kind of ragged look to them. The dried spores they are highly flammable, and they were once used in place of flash bulbs in photography. That’s one reason that clubmosses were so hard to find at one time. People also made Christmas wreaths from them and that also helped to nearly wipe them out. They’ve made a comeback though and I see lots of them.

Snow always melts faster under the evergreens because the branches block so much of it from falling next to the trunk. This gives birds and small animals places to scratch around and find any morsels that might have been missed.

The return of the bluebirds made me think that other migrants might be coming back as well, but the sumac berries still aren’t being eaten. I’ve heard that the fruit is low in fat and not very nourishing but I would think it would at least fill an empty stomach and get them by until they could find something a little more nourishing. These berries are on a smooth sumac (Rhus glabra,) which I’ve never seen growing here.

The birds have eaten all the seeds from the asters, but what they leave behind is still pretty enough to make me think of flowers. It’s hard to imagine birds getting much nourishment from such tiny seeds but I suppose if you happen to be a tiny bird they’re just right.

They say a warm up is coming starting next week so I hope to be able to show you something besides ice and snow soon. I still haven’t seen a sap bucket but I dreamed I was in a sugar bush of huge old trees with hundreds of buckets hanging from them, so I hope to also be able to show you one of those soon. I have seen that plastic tubing they use instead of sap buckets these days, so I know the sap must be flowing.

If the sight of the blue skies fills you with joy, if a blade of grass springing up in the fields has power to move you, if the simple things in nature have a message you understand, rejoice, for your soul is alive. ~Eleanora Duse

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1. Trail

Last Sunday, the day after the big mid-Atlantic blizzard had blown out to sea we had a beautiful sunny day, so I decided to climb the High Blue Trail in Walpole. I chose it because I hadn’t climbed since we had ice fall on top of the snow and I wasn’t sure how icy the trails would be. High Blue Trail is a very gentle climb and though the snow was very loud and crunchy it wasn’t at all slippery. Many had gone before me.

2. Meadow

After four cloudy weekends in a row the sky seemed an incredibly beautiful shade of blue.

3. Clouds

The sky wasn’t entirely cloudless though. I saw these 3 trying to sneak past out of the corner of my eye.

4. Sunshine

The sun was very bright and I was glad that I had brought sunglasses. Snow blindness is a very real thing and isn’t pleasant. It happened to me once when I was shoveling snow in bright sunshine and it wasn’t until the next day that my blurry vision finally got back to normal. It is basically sunburn on your eye and some say it is quite painful. I didn’t have any real pain but it certainly is annoying when you keep blinking and your vision doesn’t clear.

5. Mossy Ledges

The blue shadows, green mosses and white blankets of snow softened the stone ledges. Some say winter is hard and sharp and it can be, but it isn’t always that way.

6. Grafted Maples

The wind made these two maples rub together and they rubbed enough to rub away their outer bark and become grafted together. Unless man interferes they will now stay that way for the rest of their lives. Unfortunately some fungus spores found the wound and grew, so there is a good chance that the lives of these trees will be cut short.

7. Small Spruce

I’ve seen this little two foot tall spruce that grows beside the trail completely covered with snow a few times. I was very glad that it wasn’t this time. It’s nice to measure snowfalls in inches rather than feet for a change.

8. Tracks

Some small creature scampered around this sapling and then went back from where it had started.  Either that or a chipmunk had gotten new skis for Christmas and was trying them out on a downhill run.

9. Hollow Tree

There was a lot of coming and going around this hollow tree.

10. Hollow Tree

But in spite of all the footprints nobody was home.  I suppose you couldn’t blame them for being out on such a beautiful day.

11. Club Moss

The clubmosses have released their spores. The orange yellow, club-like strobilus that bears the spores is smooth and closed before they are released, and open and bushy afterwards. These spores have been collected and dried for many years to make flash powder. They are high in fat content and when mixed with air become highly flammable. They’ve been used in fireworks and explosives for years, and also as camera flashes before flash bulbs were invented. These days they are still used in magic acts. If you ever see a big impressive flash of fire on a stage, thank a clubmoss.

12. Stone Foundation

As always I had to stop at the old stone foundation. Winters must have seemed very long and cold for those who once lived here and I always wonder how they managed.

13. Nail

I’ve been up here too many times to count but I’ve never seen the nail in this tree before. I wonder how long it’s been here.

14. Sign

The nail is on the backside of the tree that the sign is on, which makes it even more surprising that I’ve never seen it.

15. Spoilers

The stacked rocks are still here from last summer. I call them spoilers because for me they are needless distractions that spoil the experience.

16. View

As expected the view across the Connecticut River Valley to Vermont was very blue but strangely, the sky wasn’t. At least it wasn’t the deep sapphire blue that it had been in other spots along the trail.

17. View

I would imagine that they must be making snow every night on Stratton Mountain if the ski trails are any indication. The past week saw some cold nights and the temperature had only risen to 17 degrees when I left Keene to come here. A stiff and steady westerly breeze meant that it was fairly cool standing in this spot, so I didn’t stay long. Climbing really isn’t about the views for me anyway; it’s more about what I see along the way. Because there are so many interesting things to see along the way hazy or cloud blocked views never disappoint.

The old school of thought would have you believe that you’d be a fool to take on nature without arming yourself with every conceivable measure of safety and comfort under the sun. But that isn’t what being in nature is all about. Rather, it’s about feeling free, unbounded, shedding the distractions and barriers of our civilization—not bringing them with us. ~Ryel Kestenbaum

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I don’t know why, but for the last two or three months I’ve had the urge to go places I’ve never been and see things I’ve never seen. Recently I walked into a forest in Winchester, New Hampshire, which lies south of Keene on the way to Northfield, Massachusetts to see a waterfall called Pulpit Falls.

 1. Stream and Bedrock

The directions weren’t the best; follow an old logging road until you hear running water, and then bushwack your way upstream until you see a waterfall. In other words, once I left the logging road there was no trail-just me and the woods.

2. Stream

Being so late in the year there was little actual bushwacking to do. What few shrubs grew near the stream were easily skirted. Since there was no trail the meandering stream became the trail.

3. Mt. Laurel Thicket

Mountain Laurels (Kalmia latifolia) grew here and there. These native shrubs often grow in large impenetrable thickets that are always best to walk around rather than through. This place must be beautiful in the summer when the laurels are covered with pink and white blossoms. Native Americans used to make their spoons out of the wood, which is why it is also called spoon wood.  This plant was first recorded in this country by the Swedish / Finnish botanist Peter Kalm in 1624.

4. Pulpit Falls

We’ve had such a dry summer that the falls themselves weren’t much to write home about, if indeed this was them. But, easily seen was evidence that this small stream could become a raging torrent several yards across. I’ve seen pictures of the falls when the stream is running like that and it would be worth the hike to see it. I’ll come back during the spring rains, if we have them.

5. Boulders at Pulpit Falls

Upstream from the falls, the stream appears from under these huge pieces of stone. The biggest of them was as big as a delivery truck. I didn’t see anything that looked like a pulpit, so I’m not sure where the name Pulpit Falls came from. Uphill above these boulders was nothing but forest-no stream or any sign of a stream, so it must go underground somewhere uphill and then reappear here. What bothers me is that this area doesn’t look like the pictures I’ve seen. The rocks are much flatter than round in those pictures.

6. Fern on Stream Bank

A thin shaft of sunlight fell through the trees and lit up this fern as if it were on a Broadway stage. It was growing on a boulder at the side of the stream and I think it was a polypody fern, also known as rock cap fern. These ferns are evergreen.

7. Clubmoss Fruiting

The clubmosses here were covered with fruiting “clubs” where spores are produced. I think this is common ground pine (Lycopodium dendroideum) which is native and which the U.S.D.A. lists as rare. The people at the U.S.D.A. have obviously never hiked through the woods of New Hampshire, because this plant is everywhere now. It was once endangered after being over collected for use as Christmas greenery. The dried spores of this plant were also once used in photography as flash powder before flashbulbs were invented.

 8. Beard Lichen

I found a tree branch on the ground that was covered with lichens, so I put it on this mossy boulder and took a picture.  I think the larger hairy examples are bristly beard lichens (Usnea hirta.) The others are foliose lichens that I don’t recognize.

9. Ledges

On my way home from the falls I stopped to get a few pictures of a local hill that has had its heart torn out by a construction company, which crushes the rock and sells it. To give you an idea of how massive this really is-the “shrubs” on top of the hill in the upper left hand corner are actually white pine trees (Pinus strobus.) White pines can grow to around 160-190 feet tall are the tallest trees in eastern North America, but the youngsters in the photo were probably closer to 100 feet.

10. Icy Ledges

You know it’s cold when stone doesn’t absorb enough heat from the sun to melt the ice that clings to it. But at least we saw some sunshine!

If you can find a path with no obstacles, it probably doesn’t lead anywhere ~Frank A. Clark

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I wasn’t surprised the other day when I walked into my local grocery store and saw a table full of cyclamen, poinsettia, and Christmas cactus. But wait-what in the name of Asa Gray was that!? It looks harmless, doesn’t it?

 

The sign said it was a “Frosty Fern,” but I knew it wasn’t a fern, so what was it? It looked familiar but… And why had it been dipped in whatever it had been dipped in? I ran my hand over it-it felt like a cedar leaf. Then it finally hit me-clubmoss, of course-I had just done a blog entry on clubmoss! But that still left the nagging question of the “frosting.” Was it natural?

As it turns out, according to several websites, the coloring of the leaf tips is natural; similar to variegation on other leaves but concentrated in one area, apparently. This club moss (Selaginella kraussiana ) seems so unfamiliar because, though it has become naturalized in parts of Portugal, Spain and New Zealand,  it is originally from Africa.

Here in the northern United States it is grown as a houseplant and, by the sounds of it, a rather fussy one. Though several websites say it is easy to grow, they go on to say that it likes temperatures in the eighties, constantly moist soil, and very high humidity. It doesn’t like temperatures below fifty degrees and anything below ten degrees will kill it. “Easy to grow” is a relative term; I’ve grown so many houseplants in the past that it used to be wise to bring a machete if you came to visit, but I’ve always stayed away from those that need high humidity because it is almost impossible to provide it adequately. Many growers recommend putting the frosty fern in a terrarium which, in our dry winter houses, is probably a good idea.

In southern and western states frosty fern and its commercially available siblings “Aurea,” which is plain green, “Brownii”, which appears to be a dwarf variety and “Gold Tips,” which is frosted with gold instead of white are being planted outdoors in gardens and are escaping. They have become naturalized in Georgia, northern Virginia and central California and have escaped gardens in Alabama and North and South Carolina. They are being found on riverbanks, lake edges, lawns, and other moist, shady places, but the U.S.D.A. doesn’t list them as invasive. Yet.

In New Zealand Selaginella kraussiana, introduced as a groundcover, has been listed on the National Plant Pest Accord and is considered an invasive species. It spreads quickly by rhizomes (underground stems), forms dense mats in shaded areas and chokes out native orchids and ferns. Biological control has been unsuccessful and it takes several applications of herbicides to kill it, so repeated deep hand weeding is recommended.

It has also escaped and become naturalized in parts of Australia, Europe, and Northern, Central, and South America. Invasive plants “adversely affect the habitats they invade economically, environmentally, and/or ecologically.”  Many would never become invasive without a lot of help from us-the gardening public.

 

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