Early August Flowers

August is when our many asters begin to blossom here in New Hampshire and one of the first is the whorled wood aster. It’s one of the easiest asters to identify because of its early bloom time and because the narrow white ray florets look like they were glued on by chubby fingered toddlers. The plant can take quite a lot of shade and I usually find it growing alongside the edges of woodland paths.

Whorled wood aster (Oclemena acuminata) gets its common name from the way its leaves appear to grow in whorls around the stem from above. In botany, a whorl is an arrangement of at least three sepals, petals, leaves, stipules or branches that radiate from a single point around the stem, and the leaves of this aster really don’t fit the definition. Looking at the from the side the tiers of whorled leaves of would appear flat like a plate, but these leaves appear randomly scattered up and down its length. Indian cucumbers have tiers of whorled leaves as do some loosestrifes. The plant is also called sharp leaved aster and grows to about a foot tall.

One of the most beautiful late summer wildflowers that I know of is called eastern forked blue curls (Trichostema dichotomum), but blue is my favorite color so my opinion is slightly biased. Each tiny flower has four long arching stamens that dust bees with pollen when they land on its lower lip. It is an annual plant that grows new from seed each year. It likes dry sandy soil and I find it growing along river banks and in waste areas. It grows to about ankle high and its flowers might reach a half an inch long on a good day.

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. An extract made from the plant 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 when eaten. It is also called old man’s beard and devils’ darning needles.

Spear thistle (Cirsium vulgare) is also called bull thistle and is native to Europe. It is considered an invasive weed but it’s far less invasive than creeping thistle (Cirsium arvense) because it spreads itself by seeds and not root fragments like that plant does. It is thought to have been introduced to eastern North America during colonial times and to western North America in the late 1800s and early 1900s. It’s now found in all of the lower 28 states and most of Canada. Spear thistle likes to grow on disturbed ground and I find it in vacant lots and at the edges of cornfields. Many different bees and butterflies love its nectar and several species of small seed eating birds like finches love its seeds.

The flowers of spotted jewelweed (Impatiens capensis) have 3 sepals and 5 petals but are far too complicated to explain here. That information is easily found online anyway but what often isn’t included in the jewelweed flower’s description is the cluster of stamens with white anthers that sits just under the ovary near the upper lip. When a long tongued inset crawls into the flower to get at the nectar deep in the nectar spur its back gets dusted with pollen from these anthers. Sometimes the pollen can also end up on a humming bird’s head; they love the nectar too.

An interesting fact about jewelweed flowers is their ability to change from male to female. According to an article in the International Journal of Plant Sciences, when nectar is taken from a flower pollen collecting hairs are stimulated and the duration of the male phase of the flower is shortened. From then on it enters its female phase and waits for a visitor to dust it with pollen from another male flower. It’s no wonder these plants can produce so many seeds!

There are enough different goldenrods (over a hundred it is said) which look enough alike to convince me that I don’t want to spend the rest of my life trying to identify them all, but some are quite easy to identify.  One of the easiest is gray goldenrod (Solidago nemoralis).  It’s one of the first to bloom and its flower heads always look like they have been in a gale force wind and were all blown over to one side of the stem.

After years of trial and error Thomas Edison found goldenrod to be the best domestic source of natural rubber and bred a plant that grew to twelve feet tall and contained about twelve percent rubber in its leaves. Henry Ford and George Washington Carver developed a process to make rubber from goldenrod on an industrial scale during World War II and the USDA took over the project until synthetic rubber was discovered a short time later.

Northern bugleweed (Lycopus uniflorus) has opposite leaves that turn 90 degrees to the previous pair as they make their way up the square stem. The leaves are sessile, meaning they sit directly on the stem with no leaf stem (petiole,) or they can occasionally have a short petiole. Tufts of very small white flowers grow around the stem in the leaf axils. This plant likes wet places and, since there are many different species of Lycopus, it can be hard to identify.

The tiny flowers of northern bugleweed are about 1/8 inch long and tubular with 4 lobes, a light green calyx with 5 teeth, 2 purple tipped stamens, and a pistil. They are also very difficult to photograph because they’re so small. The plant is usually about knee high when I find it along the edges of ponds and streams. They often fall over and grow at an angle if there aren’t any other plants nearby to support them.

Dodder (Cuscuta) is an annual and grows new from seed in the spring. It is a leafless vining plant that wraps and tangles itself around the stems of other plants. It is a parasite that pushes root like growths called haustoria into the stem of the host plant. Dodder can do a lot of damage to food crops and some of its other common names reflect how people have felt about it over the years:  devil’s guts, devil’s hair, devil’s ringlet, hail weed, hair weed, hell bine, pull-down, strangle weed, and witch’s hair.

In this photo that I took a couple of years ago if you look just to the upper left of the white flower in the photo you can see how the orange dodder stem has burrowed into a goldenrod stem. Once it is feeding on its host it loses all connection to the soil and from then on will survive by sucking the life out of the host plant. Dodder has no chlorophyll and its stems can be bright orange, yellow, or red. The round growths are seed pods.

If you search for rosebay willow herb (Chamerion angustifolium) on the USDA Plants Database you find that the plant doesn’t grow in New Hampshire, but if you search for fireweed you find that it does grow here. That’s odd because they’re the same plant, and I thought that this was a good illustration of why it’s so important to use a plant’s scientific name, especially when buying plants. Otherwise you never really know what you’ll be getting. The name willowherb comes from the way its leaves resemble those of the willow and the name fireweed comes from how it quickly colonizes burned areas of forest.

I know of only one place along a stream in Nelson New Hampshire where fireweed grows but it isn’t included in the New Hampshire Natural Heritage Inventory list of rare plants, so I’m guessing that it isn’t rare statewide even though it is here. Henry David Thoreau mentions seeing great stands of it growing in burned areas in 1857. It’s a beautiful color and its dangling stamens and large white pistil make it very easy to identify. This plant is a favorite of bee keepers and is an important nectar producer for the honey industry throughout Canada and Alaska. The honey is much sought after and commands premium prices.

The bright sunshine turned the usually brownish maroon color of the insides of these groundnut (Apias americana) flowers salmon pink. These unusual flowers always remind me of the helmets once worn by Spanish explorers and in fact Spanish explorers might have seen the plant, because it was a very important food source for Native Americans from New England to Florida. It has been found in archeological digs of Native settlements dating back 9,000 years.

The groundnut plant grows as a twining vine and will climb just about anything. In this photo it is climbing a small oak tree. It grows from tuberous, potato like roots that can be as big as a tangerine but are usually smaller. Native Americans used them in the same ways we use potatoes today, but groundnut “potatoes” contain about three times the protein. Natives taught the early colonials how to use the groundnut and the roots became such an important food source for them that they went so far as to forbid Natives from digging them on colonial lands.  How’s that for a thank you?

I can count the times I’ve seen gentians on one hand and still have fingers left uncounted. I’ll never forget finding these plants growing beside the same dirt road that I found the fireweed on up in Nelson last year. I jammed on my brakes and jumped out of my truck and fell to my knees beside them. If anyone had seen me they would have been sure that I had escaped from an asylum, but I didn’t care. That’s how rare these plants are. I drove for 45 minutes to see them again this year.

At first I thought they were bottle gentians (Gentiana andrewsii) but further research told me that they were narrow leaf gentians (Gentiana linearis.) These plants like moist, calcium rich soil and that’s one reason you don’t see them here very often. Another reason is that the flowers never open so insects have to force their way in, and it takes a strong insect like a bumblebee to do so. Third is how its seeds are too small to interest birds and its foliage too bitter to interest herbivores. Put all of that together and it’s a wonder that this plant is seen at all. It’s listed as rare, endangered or vulnerable in many areas. I love its beautiful deep blue color and I’m very grateful to have seen it. Now if only I could find a fringed gentian or two.

I should like to enjoy this summer flower by flower, as if it were to be the last one for me.~ Andre Gide

Thanks for stopping in.