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Posts Tagged ‘Arrow Leaved Tearthumb’

Joe Pye weed (Eutrochium fistulosum) has come into full bloom. Or full bud anyhow, most of the buds seen here haven’t opened yet. These plants towered over my head. Joe Pye is thought to have been a Native American healer who used this plant to treat early Massachusetts Bay Colony settlers suffering from typhoid fever, but the discussion over the origin of the name goes back and forth. For instance I’ve read that a Native word for the plant was “jopi,” which meant typhoid, and it is thought by some that jopi the plant name became Joe Pye the person’s name.

Monarch butterflies love Joe Pye weed flowers and I’ve already seen them on the open flowers this year.

Strangely, though boneset (Eupatorium) looks like a white joe Pye weed I’ve never seen a monarch butterfly on it. Joe Pye weed and boneset used to be in the same Eupatorium family but Joe Pye weed was has whorled leaves so it was moved to Eupatoriadelphus, from what I’ve read. Boneset has opposite leaves. The “perfoliatum” part of boneset’s scientific name means “through the leaf,” and that’s what boneset leaves look like; as if they had been perforated by the stem. The leaves joining around the stem as they do looked like bones knitting together as they healed to ancient herbalists, and that’s how the plant got its common name.

Dewdrop (Dalibarda repens) is also called false violet because of its leaves, and I think that might be why it’s an easy flower to miss. Its small white flowers dot the forest floor like so many other small white flowers, and that also makes it easy to pass by with just a glance. A closer look reveals something different though; this plant produces other flowers that don’t open but still produce seeds. They are called cleistogamous flowers and are hidden beneath the leaves. The showy flowers like the one in the photo are mostly sterile. Dewdrop is one of the rarer flowers I see. It is endangered or threatened in many states and It likes swamps and moist woodlands.

Asiatic dayflower (Commelina communis) is rare here. I first found a single 6 inch high plant a couple of years ago and I was surprised by how small it was. The single plant had a single flower that I always thought  would be as big as a tradescantia blossom, but it was only half that size. It is an introduced plant from China and Japan but it could hardly be called invasive in this area because I’ve seen maybe two or three of them in 60+ years. I’d like to see more of them; I love that shade of blue.

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.

Slender fragrant goldenrod (Solidago tenuifolia) is one of the easiest to identify because of its scent, which is said to resemble anise and sassafras. Since I’ve never smelled anise or sassafras I can’t confirm this, but its fragrance is pleasant so I always bend to give it a sniff when I see it. This plant closely resembles lance leaved goldenrod (Solidago graminifolia) but its leaves are narrower and have a single vein in each leaf. Lance leaved goldenrod leaves have 3-5 veins.

August is when our many asters begin to blossom here in New Hampshire and one of the first is the whorled wood aster (Oclemena acuminata). 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. It gets its common name from the way its leaves appear to grow in whorls around the stem when viewed 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. The plant is also called sharp leaved aster and grows to about a foot tall.

Low baby’s breath (Gypsophila muralis) flowers are tiny; about the same size as those on red sandspurry, and blossom on the ends of wiry stems. Its leaves are also small and sword shaped and very hard to see in this photo. This entire plant covered maybe 3 inches.

 I find low baby’s breath growing in the sand on roadsides in full sun, much like a sandspurry would. It is an annual plant native to Europe and available commercially, sold as cushion baby’s breath.

Cup plants (Silphium perfoliatum) are native perennials with pretty flowers that can reach 8 feet. It’s called cup plant because its leaf pairs-one on each side of the square stem-are fused together and form a cup around the stem. This cup usually has water in it. 

Bees love cup plant blossoms.

I’m seeing more butterflies and moths this year than I ever have. Many small ones, about as big as my thumbnail, were loving this coneflower one day. Skippers maybe?

Steeplebush (Spiraea tomentosa) is easy to recognize because of the way its erect stems are unbranched, with steeple shaped flower clusters at their ends. They are usually found near water. This native plant is available commercially and is an excellent choice for butterfly gardens. Native Americans used a tea made from steeplebush leaves for easing childbirth.

I’ve watched invasive purple loosestrife (Lythrum salicaria) slowly take over the banks of this stream over the years. Slowly, it chokes out the natives asters, goldenrods, and Joe Pye weeds.

Showy tick trefoil (Desmodium canadense) is a legume in the bean family. This plant gets part of its common name from the little barbed hairs that cover the seed pods and make them stick to clothing like ticks. The “showy” part of its common name comes from the way that so many of its small pink flowers bloom at once. As the plant sets seeds its erect stems bend lower to the ground so the barbed seed pods can catch in the fur of passing animals. Deer, rabbits, woodchucks and even cows love to eat this plant. It has just come into bloom.

 I like showy tick trefoil because it blooms in late summer along with goldenrod and the colors go well together.

Native arrowleaf tearthumb (Polygonum sagittatum) is in the smartweed family, which gets its common name from the way your tongue will smart if you eat its peppery parts. Though the flower buds in this family of plants seem like they never open I’ve discovered that they do, sort of. They look like they only open about halfway though and I find the buds as pretty as the blossoms. This plant is a kind of rambler / sprawler that winds its way over nearby plants so it can get as much sunshine as possible.

But that isn’t all there is to the story of tearthumb. It comes by that name because it can indeed tear your thumb or any other body part that comes into contact with it. Many a gardener has regretted trying to pull it up without gloves on, because when the small but sharp barbs (prickles, botanically) along its stems slip through your hand they act like a saw and make you sorry that you ever touched it. It actually uses these prickles for support when it climbs over other plants, and they work well. Tearthumb is considered a wetland indicator because it likes to grow in very moist to wet soil. I find it near ponds, blooming quite late in summer.

Jewelweed or spotted touch me not (Impatiens capensis) has started blooming but the lack of rain over the last couple of weeks has weakened their numbers. This plant typically blossoms right up until a frost but as day length shortens the plants will produce smaller, closed flowers with no petals and no nectar. They self-pollinate and their sole purpose is to produce plenty of seeds.

When jewelweed flowers first open they are male, but then change to female. The way to tell is by looking for white pollen. If white pollen is present like this example shows the flower is male. Female flowers will have a small green pistil in place of the pollen. The flowers are dichogamous, meaning that the male and female parts mature at different times. That guarantees that the flowers can’t be self-pollinated. 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 just so amazing.

A local business has a small flower garden packed with flowers of all kinds, and this beautiful sunflower was in it. It’s an amazing thing.

If you are lost inside the beauties of nature, do not try to be found. ~Mehmet Murat ildan              

Thanks for coming by.

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