Late August Wildflowers

It wouldn’t be fall in New England without New England asters (Symphyotrichum novae-angliae,) but this one seems to be rushing things just a bit. I didn’t see its little hoverfly friend until I looked at the photo.

White turtlehead (Chelone glabra) is another plant that says fall but it isn’t as noticeable as New England asters. It likes wet feet and doesn’t mind shade and the example in this photo was growing in dark, swampy woods that had been flooded not too long before the photo was taken.

On the other hand, many years ago a friend gave me a piece of her pink turtlehead plant (Chelone oblique) and it grows in a shady spot in my garden that stays moist, but isn’t particularly wet. In my opinion you couldn’t ask for a plant that required less maintenance. I haven’t touched it since I planted it.

Native clethra (Clethra alnifolia) is also called summersweet because of its sweet fragrance. If you have low spots in your yard that get wet occasionally, this is a good shrub to plant in them because it likes moist soil and grows naturally along stream banks and in swampy ground.  Bees love it too, and this one was covered with them.

 

Lady’s thumb (Polygonum Persicaria  or Persicaria maculosa) gets its common name from the dark spot that appears on each leaf. Legend has it that a lady with a dirty thumb (apparently) left the smudge like mark on a leaf and it has been there ever since. The tiny flowers are packed into a long raceme and can be white, red, pink, or a combination of all three. This plant is originally from Europe and Asia and is considered a noxious weed. It likes to grow near water and is usually found along pond and stream banks.

At a glance boneset (Eupatorium perfoliatum) looks like white Joe Pye weed. That’s because the two plants are closely related. In fact they can often be found growing side by side, but boneset blossoms a little later than Joe Pye weed here.

I was happy to find another spot much closer to home where dewdrops (Rubus dalibarda) grow. I used to have to drive for 45 minutes to see them but now it’s down to about 20. This plant likes to grow in shady woods and seems to need undisturbed soil to thrive. Each spot I have found it in hasn’t been touched by man for a very long time, if at all. It is also called false violet because of the leaf shape.

If the square stems and tufts of tiny pink / purple flowers in the leaf axils don’t ring a bell, then one sniff of a crushed leaf will tell you immediately that this plant is wild mint (Mentha arvensis.) Mint has been used by man since the dawn of time and Pliny, Hippocrates, Aristotle and Charlemagne each wrote of its virtues. Each time we see it we are seeing one of mankind’s earliest memories.

Slender gerardia (Agalinis tenuifoliais) a shy acting little plant that grows in the tall grass at the edge of meadows. It has the unusual habit of dropping all of its flowers each afternoon. It opens fresh buds at the start of each day, which means that its flowers don’t even last for a full day, so insects (and photographers) have to be quick. The plants that I find are always 6-8 inches tall but I’ve read that they can reach 2 feet.

 

Slender Gerardia is also called false foxglove. There might be a faint resemblance but I think it would be hard to confuse the two, especially after a good look at the leaves. The blossom in this photo was just about ready to call it a day and fall off the plant, so it isn’t in its prime.

 

Silverrod (Solidago bicolor) is in the goldenrod family and is also called white goldenrod. It is the only native white flowered goldenrod found in the northeast. I always find it in dry, gravelly places at the edge of the woods at the end of August. Silverrod isn’t seen anywhere near as often as the yellow goldenrods.

 

To me the most interesting thing about partridge pea (Chamaecrista fasciculate) is how its leaves fold together when they are touched, much like the tropical mimosa, called “sensitive plant.” Its yellow flowers have a splash of red and both bees and butterflies visit them. The common name comes from the way game birds like partridges like to eat its seeds.

 

Pilewort (Erechtites hieracifolia) is an odd plant with clusters of flowers that seem reluctant to open. Even after they do open they still look like they are in the bud stage, so you have to look at them closely.  This plant gets its common name from the belief that it was useful in the treatment of piles. In some areas it is also called fireweed because of the way it moves quickly into burned areas. I usually find it along river and stream banks.

This is all we see of a pilewort flower when it opens. It is made up of many disc florets which are pollinated primarily by wasps and hornets. Once they go to seed they will float away on the wind much like dandelion seeds.

 

Last year each little rosette of downy rattlesnake plantain orchid (Goodyera pubescens) leaves sent up a flower spike but this year I’ve seen only one. It doesn’t matter though, because plants often rest after a bountiful year and its leaves are my favorite part of this native orchid. They are evergreen and each one will last about four years. You can tell that each plant is very small by comparing their size to the curled beech leaf on the right.

Each white flower on the downy rattlesnake plantain is no bigger than a pea. The pubescens part of the scientific name means downy or hairy, and all parts of the plant above the leaves fit that description. Even the flowers are hairy. It is thought that a small bee called Augochlorella striata might pollinate them. Though it might not win any prizes at flower shows this little orchid is always a real pleasure to find in the woods.

Who would have thought it possible that a tiny little flower could preoccupy a person so completely that there simply wasn’t room for any other thought? –  Sophie Scholl

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Mid August Wildflowers

Here are a few more examples of what’s blooming in southwestern New Hampshire right now.

 

Native button bush (Cephalanthus occidentalis) is blooming along rivers and ponds now, but it isn’t real common. This plant is a shrub that can reach 12 feet tall. The flowers are unusual-the spiky pistils stick out quite far above the petals, giving the round flower head the look of a pincushion. Native Americans used the roots and bark of these shrubs medicinally but modern science has found that the plant contains a compound called cephalanthin, which destroys red blood cells.

 

American bur reed (Sparganium americanum) looks almost like a miniature version of the button bush in the previous photo. Since they both like water they are often found growing together on the same stretch of shoreline. The round, spiky female flowers of burr reed grow at the bottom of the stem and the male flowers with yellow stamens above them. Ducks and other waterfowl love the seeds.

 

In New Hampshire native partridge pea (Chamaecrista fasciculate) is a quiet little plant that grows in the tall grass at the edge of the woods and you really don’t hear much about it. In other areas it is often grown for honey production.  This annual plant is a legume in the pea family and is a great addition to a wildflower garden because it attracts a large variety of insects and wild life.

 

Showy tick trefoil (Desmodium canadense) is another legume in the bean family but it is a perennial. I like it because it blooms in late summer along with goldenrod and I think that the colors go well together. This plant gets its name from the little barbed hairs that cover the seed pods and stick to clothing like ticks. Deer, rabbits, woodchucks and even cows love to eat this plant. Books and websites say its flower is pink but my color finding software sees purple in this photo, and so do I.

I see a lot of white hedge bindweed (Calystegia sepium) but not many bi-color flowers like this one. It’s a beauty.

Yellow toadflax was introduced from Europe and Asia as an ornamental but as the old, familiar story goes; it escaped cultivation and is now found on roadsides and in pastures of every state in the country except Hawaii. Called butter and eggs, this plant is hated by cattlemen because it can take over large areas of pasture. Cattle know it is toxic and don’t touch it.

 

Virgin’s bower (Clematis virginiana) is a late summer blooming native clematis vine that drapes itself over shrubs so it can get all of the sunshine that it wants. I’ve also seen it climbing into trees.

 

The flowers of virgin’s bower resemble those of sweet autumn clematis (Clematis paniculata), which is a nonnative garden climber that has escaped. The plant is also called old man’s beard and devils’ darning needles. An extract made from it is hallucinogenic and was used by Native Americans to induce dreams. Mixed with other plants like milkweed, it was also used medicinally. It is a very toxic plant that can cause painful sores in the mouth, so it no part of it should ever be eaten.

 

Native wild cucumber (Echinocystis lobata) is another late summer blooming vine that climbs on shrubs and trees. It likes to grow in sandy soil and prefers shade over full sun. The flower spikes (Racemes) grow to 6 inches or more all along the main stem. These plants are annuals and grow from seed each year. The spiny, 2 inch long fruits have a watermelon shape and boys have been throwing them at each other for as long as I’ve been around. The fruit is not edible.

 

The greenish white, star shaped male flowers of wild cucumber have 6 petals that are twisted slightly. The female flowers are yellowish green and not at all showy. They grow at the base of the male flower stems. There is usually only one female flower for every 5 or 6 male flowers, which is why there are so few fruits seen on each vine.

Plant breeders have been trying for centuries to breed a plant with black flowers but nature beat them to it with black swallow-wort (Cynanchum louiseae). The flowers can be black to dark purple and look like tiny stars. This plant is native to Italy, France, Portugal, and Spain and in 1854 it escaped from a botanical garden here in the U.S. and has been trying to take over since. It grows long, wire-like vines that are strong enough to trip you up without breaking. It is for that reason its other common name, dog strangler, came about.

 

The seed pods of native mad dog skullcap (Scutellaria lateriflora) might look like an old fashioned skullcap, but the only thing the plant has to do with mad dogs is the erroneous belief that the it cured rabies. Mad-Dog Skullcap has the smallest flowers among the various skullcaps and they always grow in pairs in the leaf axils. These plants are quite small to begin with but many plants that grow on river banks where the river floods regularly can be stunted and quite smaller than usual, and I think that is what happened to these plants. These flowers were very small-no more than 1/8 of an inch long.

Dwarf St. Johnswort  (Hypericum mutilum) grows on the riverbank with the mad dog skullcap but it grows small naturally instead of being stunted. These flowers were about the same diameter as a pencil eraser. Like its bigger cousins the leaves of this plant contain a compound called hypericin, which can make light skinned people more susceptible to sunburn by way of a photosensitive reaction.

Another small flower I find on the upper gravel part of the riverbank is the forked blue curl (Trichostema dichotomum.) These are annual plants that grow from seed each year and I was afraid that all the seeds would have washed away in last spring’s flooding, but here they are. They are very small and you have to get down on your hands and knees for a view like this but it’s worth it because they are beautiful. This native plant grows as far west as Texas.

If you take a flower in your hand and really look at it, it’s your world for a moment. ~Georgia O’Keefe

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A River Walk

I spend a lot of my plant hunting time near ponds, streams and rivers because that’s where the wildflowers like to grow. This post is about the flowers I found on 2 or 3 recent visits to the Ashuelot (pronounced Ash-will-lot or Ash-wee-lot) river in both Keene and further south in Swanzey, New Hampshire. Because of a long stretch of dry weather the river is about as low as I’ve ever seen it.You can see by the dark areas on the stones how much lower the river is than is normal. You can also see that it isn’t taking long for plants to start colonizing those parts of the bank that are normally under water. False pimpernel (Lindernia dubia) was growing in the wet mud nearly at the water’s edge in a spot that would have normally been under water.  These flowers are quite small and I had to re-shoot them three or four times before I had pictures I could live with. This plant sheds all its flowers each evening so all you see is blue / purple flowers all over the ground around it, then the following morning more flower buds open with that day’s flowers. What is strange is that I can’t find any reference to this habit either in books or online, even though I witnessed it on several evenings.  False pimpernel is listed as endangered in New Hampshire. A side view of false pimpernel (Lindernia dubia.) Looking down the throat of a false pimpernel (Lindernia dubia.)  This flower has 4 stamens, 2 fertile and 2 infertile. Under its hood, 2 of its stamens curve down like cobra fangs, but no matter how many pictures I took from any angle in any light, I couldn’t really capture the curved stamens. I sure was covered with river mud from trying though! I wasn’t the only one who got muddy. The mud was so soft that even the raccoons were sinking into it. You have to be careful where you step because there are some spots on this river-mostly in still backwaters- that contain quicksand. I don’t know if there are any areas of quicksand near this backwater, but there sure was plenty of algae. It’s clear that the river hasn’t stirred here for a while. Dwarf St. John’s Wort (Hypericum mutilum) is another tiny flowered native plant that likes to grow at the water’s edge in sandy soil. Dwarf St. John’s Wort’s foliage usually looks untouched by insects or animals because it is slightly toxic. Each flower has 5 petals and 5 light green sepals and is maybe half the size of a pencil eraser. Be careful when identifying those bedstraws! Most have 4 petals but two of them, three petaled bedstraw (Galium trifidum) and stiff marsh bedstraw (Galium tinctorium) pictured here, have three petals. The flowers are very small-even smaller than those of the dwarf St. John’s wort described previously. Its whorled leaves usually appear in groups of 5 or 6. The odd fruits are pairs of tiny black spheres that each contains 1 tiny seed. This native stiff marsh bedstraw plant grew in moist sand very close to the water’s edge. Another common name for the plant is Clayton’s bedstraw.You don’t have to get much closer than this to our native nodding smartweed (Polygonum lapathifolium) to know what it is. This is also called curly top smartweed-obviously because of the way the long flower spikes droop. Each flower spike is made up of many pink to white, very small flowers. The flowers never fully open, which can make it hard to count any of their reproductive parts, but each one has 5 sepals and no petals. These plants are big-the picture shows just a small part of a colony that must have been 7-8 feet across and 3-4 feet tall and there were several colonies just like it dotting the river bank a foot or two from the water. There are other smartweeds that droop but their flower spikes aren’t as densely packed as these. Silky dogwood (Cornus amomum ) thickets grow along the top of the river bank and the weight of the berry clusters pulls the long branches down to hang out over the water. These bushes are big-most are 10 feet across-and are loaded with fruit. This plant has blue berries that start out white and because of that it might be confused with red osier dogwood, which has white berries that sometimes have a bluish blush. The easiest way to identify them is to remember that silky dogwood is named for the soft, downy hairs that cover the branches and red osier dogwoods have red branches. In fact, red osier dogwood is also called red twigged dogwood. Native Americans used dogwood branches to make fish traps and twisted the bark into rope. Forked blue curls (Trichostema dichotomum ) weren’t growing at the water’s edge but grew close enough so the spot will be under water in the spring. There was quite a large colony of 15-20 plants growing here. It’s interesting that Newcomb’s Wildflower Guide says that this is a “plant of dry soil, often found along railroad tracks.” I’ve never seen them along railroad tracks but they seem real happy here in this damp river sand. No matter where they grow I’m always happy to see them-I love the blue color and the crazily bent stamens. Fellow New Hampshire blogger jomegat took the best picture of this flower that I’ve seen. It can be seen by clicking here. Native panicled tick trefoil (Desmodium paniculatum) also grows midway up the river bank. As wildflowers go, this one is quite easy to identify with its pinkish, pea like blossoms, hairy stems, flattish flower buds and flat, segmented seed pods. I chose this picture more for the flower buds than the flowers because tick trefoil buds don’t look quite like any other wildflower that I can think of, and the flattish buds are a help with identification. One day I walked through a colony of these plants without realizing it and got absolutely covered with its sticky seed pods. No amount of brushing will get them off-they have to be picked off, one by one.  Panicled tick trefoil starts blooming quite late in summer when other tick trefoils have just about finished. Another trefoil, bird’s foot trefoil (Lotus corniculatus) grows on the side of the river that gets the most sun. Lupines and chicory also grow here-it seems to be quite a fertile patch of ground, for legumes especially. This plant was imported from Europe for use as a forage plant, but it has escaped cultivation and is now found just about everywhere. Its common name came about because someone thought its seedpods looked like a bird’s foot.Partridge pea (Chamaechrista fasciculate) grows further up the river bank, above the normal water line where it is drier. The nickel size golden yellow flowers come right off the stem in the leaf axils. Every time I see one of these flowers it seems like it’s only three quarters of the way open-apparently that is just one of its habits. The many small leaflets that make up each leaf are a good way to identify this plant. Partridge pea is an annual and grows new from seeds each year. They are native plants that stand about a foot tall. Downy willow herb (Epilobium strictum) has at least 3 cousins that look much like it, so it can be hard to identify. I think downy willow herb is the only one that doesn’t have a stigma (sticky tip of the center pistil) that is 4 lobed. The hairy stems and knob shaped pistil also help identify this one. This plant is a native and can be found on river banks and other moist areas. It is related to fireweed and has lavender petals and anther filaments that are slightly darker than the petals. Chicory (Cichorium intybus) grows away from the water, but still on the river bank. This is one of my favorite wildflowers and I’m glad that it grows here where it is so easy to get to. I love it mostly because of its sky blue color. One thing I didn’t know about this plant is that the large, half dollar sized flowers shrink up to a small, dried out looking bud in the evening. In fact, the first time I looked at these recently I thought they were done blooming for this year, but then the following morning they were covered with flowers. This plant hails from Europe. It’s easy to see why it was brought to the U.S. New England aster (Symphyotrichum novae-angliae,) goldenrod, evening primrose, pilewort and wild lettuce grow at the tree line, just before the bottomland becomes forest. This land farthest from the river might get to taste of its water once in a century, when the river floods badly. It is home to plants that can take the driest soil and it supports some of the largest, showiest wildflowers.  New England asters have large flowers that are bigger than a quarter and are densely packed with purple ray florets surrounding the central yellow disc. At this time of year they are everywhere you look. I like asters but I don’t like that they signal the end of summer.Common dodder (Cuscuta gronovii ) is a parasitic vine that starts life growing from a seed but then, once it attaches itself to a host plant loses all contact with the soil and gets everything it needs from its host. I found quite a large tangle of dodder growing on a stand of goldenrod at the forest edge and the dodder had killed nearly every goldenrod plant. Since it has no leaves and couldn’t photosynthesize, the dodder literally sucked the life out of them. When its host plant dies the dodder simply twines its way around another host. It is considered a noxious weed, and you don’t want this one in your garden. The vine pictured is growing on oriental bittersweet, which is also a noxious weed. The easiest way to identify the plant is by the bright orange-yellow, twining stems and the tiny white flowers.

I choose to listen to the river for a while, thinking river thoughts, before joining the night and the stars ~ Edward Abbey

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