Equisetum laevigatum
1 media/E. laevigatum Scalar_thumb.jpeg 2022-02-28T11:21:39-08:00 Theresa Denise Llera d93e0c138cc959dcd12215f164bacda878732f73 40021 4 Equisetum laevigatum specimen from UCLA Herbarium plain 2022-03-07T12:32:12-08:00 7 May 1966 34.058206 -118.691194 20211115 121007 UCLA Herbarium - funded by the National Science Foundation award number 1802199 20211115 121007 LA00636322 Equisetaceae United States, California, Los Angeles, Santa Monica Mountains; Malibu Canyon; ca. 0.5 mi below dam Equisetum laevigatum A. Br. 100ft Sandy banks and among rocks along the stream. 11 343920E 3769900N Theresa Denise Llera d93e0c138cc959dcd12215f164bacda878732f73This page has annotations:
- 1 2022-03-02T17:12:27-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522 Stems of E. laevigatum Chelsea Okoro 4 plain 2022-03-02T17:14:02-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522
- 1 2022-03-02T17:17:14-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522 Sign of Fertility Chelsea Okoro 3 plain 2022-03-02T17:18:13-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522
- 1 2022-03-02T11:43:13-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522 Fruit of Equisetum laevigatum. Chelsea Okoro 3 plain 2022-03-02T17:18:11-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522
- 1 2022-03-02T17:14:31-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522 Roots of E. laevigatum Chelsea Okoro 2 plain 2022-03-02T17:14:41-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522
- 1 2022-03-02T17:15:21-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522 The Main Component Chelsea Okoro 2 plain 2022-03-02T17:15:44-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522
- 1 2022-03-02T17:16:24-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522 Distinct Segments Chelsea Okoro 2 plain 2022-03-02T17:16:37-08:00 Chelsea Okoro 433df3eac8f2ffcef84c2a50d6f3f846758bb522
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2022-02-16T11:47:08-08:00
Equisetum laevigatum: History, Collection, Naming, and Medicinal Properties
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Equisetum laevigatum is a plant species commonly known by the name, Smooth Horsetail. Materia medica that documents the specimen dates back to the 1800s and details its vast medicinal use in ancient Greek and Roman times. Traditionally, this plant was used to stanch, heal wounds, and treat tuberculosis and kidney problems. Beyond its proclaimed uses, E. laevigatum's relationship to its colloquial name, Smooth Horsetail, requires further research and comparative analysis. Thus, this project explores materia medica, the specimen’s collection records at the UCLA Herbarium, as well as historical accounts, and outside resources to reveal distinct characteristics, commonalities, and differences between Equisetum laevigatum and its alias, Smooth Horsetail. -By Denise Llera, Chelsea Okoro, and Grace Randall
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2022-03-09T18:24:05-08:00
Equisetum laevigatum was collected in the Santa Monica Mountains, Los Angeles, California by sandy banks near a stream. This specimen was collected on May 7, 1998 and recorded at the UCLA Herbarium. This is a frequent collection with 11K plants collected according to CCH2 records. Equisetum laevigatum, also known as Smooth Horsetail, is often pictured as brown throughout literature although it is seen as green throughout nature. This plant has two main components: the long stem which makes up the majority of the plant and its acorn-like cone at the top. The stem is green, which can grow 2 to 4 feet tall and 1 to 6 feet wide and can be fertile or sterile depending on the presence or absence of a cone. Moreover, the stem is thick and is circled by black teethed “leaves” every 2 to 6 inches. According to Southwest Colorado Wildflowers’s website, Equisetaceae, the specimens scientific family, are the sole survivors of a line of plants going back three hundred million years and gave rise to many of North America's coal deposits. E. laevigatum, or smooth horsetail or scouring rush, is widespread throughout North America, Canada, and Southern Mexico. In the UCLA Botanical Garden, another species from the Equisetecae family is found. Equisetum hyemale, known as Tall Scouring Rush, is very similar to Equisetum laevigatum. It also has black teeth but has a black band around the base of its gray sheath and tip.
The Materia Medica covering the Equisetum species dates back to the 1800s as documented in the Wellcome Collection. Based on the other works of John Curtis found in the Wellcome Collection, this image of Equisetum must be part of a compilation of plants and their associated insects during the 1830s. It may have been used as an educational material or material for plant/insect enthusiasts. Only the upper half of the plant is drawn but we notice that the plant is brown versus green, which is how it is depicted in most internet searches. Moreover, the plant appears hard, yet brittle and dry. It is important to note the beetle next to the plant because the plant's structure looks similar to the anatomy of the beetle. For example, the plant has multiple sections along its stem which mimics that of a beetle’s leg. Additionally, this plant has an acorn-like opening at the top that seems to spread out and may possibly have nutrients for insects. Another E. laevigatum specimen was also collected in the Missouri Botanical Garden on October 17 1976 and recorded at the Missouri Botanical Garden Herbarium. This specimen was collected by George Englemann in August 1942 and annotated 15 years later in 1957 by Emily L. Hartman. Some of the distinct characteristics observed in the aforementioned Materia Medica as well as the specimen in the UCLA Herbarium and Botanical Garden are also seen in this record. The curved and segmented stem is particularly notable in this image. However, this specimen lacks the leaves seen in the UCLA Herbarium record, indicating it is a fertile stem.
This plant's is common name, smooth horsetail, was inspired by some key characteristics. For example, the long and branched stems fan out from the root-like hairs of a horse’s tail. The long thick stems are further intertwined with shorter thin stems making the plant denser. The root is thick yet flexible which parallels the tail of a horse: it is usually thicker closer to the rear end and flexible for mobility. Furthermore, the segmentation of this species stems give it a curved stature similar to a tail's anatomy, especially in the Herbarium records. This specimen could also be deemed multi-purpose, much like the hair of a horse's tail. This specimen is not only known for its medicinal uses, but was also once used to scour and clean surfaces. The Equisetum stems also contain high concentrations of silica, which has benefits for hair, skin, and nails. While many specimens in the Equisetacea family are referred to as Horsetail, Equisetum Laevigatum is specified with the adjective “smooth.” This is likely due to the smooth nature of the stem in between its teethed ridges.
The medicinal uses of Horsetail date back to ancient Roman and Greek times. The smooth horsetail was used as a treatment for various ailments. Traditionally, it was used as a diuretic. Horsetail helps the body get rid of excess sodium and water, and it stimulates the kidneys to release sodium into the urine. Eventually, increasing urine output. Aside from being a diuretic, it has antioxidant properties that could help prevent cell damage by protecting against free radicals. Additionally, smooth horsetail was used as a contraceptive; and as a treatment for hemorrhoids, high blood pressure, backaches, and colds. Traditionally, Equisetum laevigatum comes in liquid form (horsetail infused water). Currently, it can also be found in capsule form. Topically, it was used to treat allergic reactions from poison ivy.WORKS CITED
Curtis, John. 1830. “A Horsetail Plant (Equisetum Species) with an Associated Beetle and Its Anatomical Segments. Coloured Etching, c. 1830.” Wellcome Collection. August 1, 1830. https://wellcomecollection.org/works/r9tueb3s.Mount Sinai New York. n.d. “Horsetail Information.” Mount Sinai Health System. Accessed March 7, 2022. https://www.mountsinai.org/health-library/herb/horsetail.SEINet Portal Network. n.d. “Equisetum Laevigatum A. Braun.” SEINet Portal Network. Accessed March 7, 2022. https://swbiodiversity.org/seinet/taxa/index.php?taxon=1980.Southwest Colorado Wildflowers. n.d. “Equisetum Laevigatum.” Accessed March 7, 2022. https://www.swcoloradowildflowers.com/Fern%20Enlarged%20Photo%20Pages/equisetum%20laevigatum.htm.Tropicos.org. n.d. “Engelmann - s.n. - United States.” Missouri Botanical Garden. Accessed March 7, 2022. http://legacy.tropicos.org/Image/14796. -
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media/CCH2 Lycium torreyi.jpg
2022-02-23T11:27:59-08:00
Plant Specimen and their Alias : Exploring the Identity of Plants with Animal in the Name
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Lycium torreyi and Equisetum laevigatum, both plant species with an animal in their name, were explored for their characteristics and relationship to their respective animals. Through extensive research, we deduce several similarities and differences between our plants that led us to an understanding of why each plant earned their colloquial name, or alias. Lycium torreyi and Equisetum laevigatum, alias Wolfberry and Smooth Horsetail, respectively, have several commonalities and differences to their corresponding animal including physical and character traits as well as their medicinal qualities. Images, observations and outside research portray the many queries and answers to their common name. By Frieda Anastopulos, Alexa Hernandez, Denise Llera, Chelsea Okoro, Grace Randall
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2022-03-10T21:10:21-08:00
Equisetum laevigatum
Our project specimen, Equisetum laevigatum, was collected in the Santa Monica mountains by sandy banks near a stream. This was located in Los Angeles and collected on May 7, 1998 and recorded at the UCLA Herbarium. This is a frequent collection with 11K collected according to CCH2 records. Smooth Horsetail is often pictured as brown throughout literature although it is seen as green throughout nature. This plant has two main components: the long stem which makes the majority of the plant and its acorn-like cone at the top. The stem is green, which can grow 2 to 4 feet tall and 1 to 6 feet wide and can be fertile or sterile depending on the presence or absence of a cone. Moreover, the stem is thick and is circled by black teeth “leaves” every 2 to 6 inches. According to Southwest Colorado Wildflowers website, Equisetaceae are the sole survivors of a line of plants going back three hundred million years and gave rise to many of our coal deposits. Equisetum laevigatum, also known by their common name smooth horsetail or scouring rush, are widespread throughout North America, Canada, and Southern Mexico. Some of these plants claimed medicinal agents include antioxidants and silica. The former is meant to protect against free radicals in your body that could damage cells, while the latter is made of silicon and oxygen and may have benefits for skin, hair, and nails. Depending on the photos, there are different qualities we observe.
Equisetum laevigatum Connection to Animal
Equisetum laevigatum, a plant from the family Equisetaceae, goes by the common name Smooth Horsetail. The medicinal uses of Horsetail date back to ancient Roman and Greek times. It was traditionally used to treat wounds, tuberculosis and kidney problems. We can infer why this plant is called smooth horsetail by observing some of its key characteristics. For example, the long and branched stems fan out from the root like hairs of a horse’s tail. The long thick stems are further intertwined with shorter thin stems making the plant denser. The root is thick yet flexible which parallels the tail of a horse: it is usually thicker closer to the rear end and flexible for mobility. This specimen could also be deemed multi-purpose, much like the hair of a horse's tail. This specimen is not only known for its medicinal uses, but was also once used to scour and clean surfaces. The Equisetum stems also contain high concentrations of silica, which has benefits for hair, skin, and nails. While many specimens in the Equisetacea family are referred to as Horsetail, Equisetum Laevigatum is specified with the adjective “smooth.” This is likely due to the smooth nature of the stem in between it’s teethed ridges.
Lycium torreyi
Lycium torreyi is a type of flowering plant that is primarily found in the southwestern area of the US, particularly common in the southern California district. For this project, the preserved specimen of Lycium torreyi utilized for the physical analysis was obtained through the UCLA herbarium collection. The plant in the collection was collected from the Sonoran Desert in 1988 by Barry A. Prigge and David S. Verity. The plant has many unique physical characteristics, such as small green leaves across its branches (1cm), short yet sharp spikes, and little black fruits growing at the ends of the plant. Historically, the plant was used to treat a myriad of conditions because of its seemingly medicinal properties. In this project, we will explore these physical and medical characteristics in-depth to provide a more comprehensive and multidisciplinary perspective into the specimen in its entirety.
Lycium torreyi Connection to Animal
Lycium torreyi, commonly referred to as Torrey Wolfberry, is a flowering plant with an extensive history in medical usage. We can infer why the animal name of "Wolf'' is included in this colloquial name by looking at the plant's various features. We can begin by analyzing the thorns of Lycium torreyi. The long stem of Lycium torreyi is covered in thorns across its entire length. There are likely close to 100 thorns present across these two stems in the herbarium specimen. These thorns are sharp and could cause damage to any organism that attempts to eat or uproot Lycium torreyi. These thorns may serve as a defense mechanism to protect the growth and longevity of Lycium torreyi. Perhaps these thorns are similar to the common defense mechanism of wolves: their sharp teeth. Both these thorns and the sharp teeth of wolves can cause scratches and deep harm to outside invading species. In this herbarium specimen, there is an abundance of dried leaves. In the small white envelope, there are dozens - hundreds of leaves that have fallen off the plant. These leaves cover the plant/shrub. Perhaps, these leaves are similar to the fur covering the body of wolves. This is a small connection but it is an overlapping feature between Lycium torreyi and its colloquial name: Torrey Wolfberry. These are merely observations and inferences; however they are perhaps reasonable connections between Lycium torreyi and its namesake: the wolf.
E. laevigatum and L. torreyi Similarities and Differences
In the previous paragraphs, information about Equisetum laevigatum and Lycium torreyi have been presented. For this part, the two plants are being compared and contrasted. Although they look different, these plants have some similarities. Both came to have animals in their names because of their features. E. laevigatum resembled a horse's tail. Thus, the name smooth horsetail. L. torreyi's thorns and leaves contributed to the plant being named after a wolf, as in Torrey Wolfberry. In addition, both can be found in the United States. The plants were also found to have medicinal purposes. E. laevigatum was used to combat free radicals in the body. L. torreyi, on the other hand, was used for toothaches and chickenpox, among other ailments. Next, we move on to the plants' differences. Physically they are very different. E. laevigatum is like thick sticks but hollow. L. torreyi is like a tree branch but thinner and has thorns. Torrey wolfberry's leaves are evident. On the other hand, smooth horsetails have less apparent miniature leaves surrounding their joints. As for location, E. laevigatum can be found where there are sandy soils and wet ditches. L. torreyi prefers to be in coastal dunes. An in-depth look at each plant is on the following two pages.
WORKS CITED
Curtis, John. 1830. “A Horsetail Plant (Equisetum Species) with an Associated Beetle and Its Anatomical Segments. Coloured Etching, c. 1830.” Wellcome Collection. August 1, 1830. https://wellcomecollection.org/works/r9tueb3s.Mount Sinai New York. n.d. “Horsetail Information.” Mount Sinai Health System. Accessed March 7, 2022. https://www.mountsinai.org/health-library/herb/horsetail.SEINet Portal Network. n.d. “Equisetum Laevigatum A. Braun.” SEINet Portal Network. Accessed March 7, 2022. https://swbiodiversity.org/seinet/taxa/index.php?taxon=1980.Southwest Colorado Wildflowers. n.d. “Equisetum Laevigatum.” Accessed March 7, 2022. https://www.swcoloradowildflowers.com/Fern%20Enlarged%20Photo%20Pages/equisetum%20laevigatum.htm.Tropicos.org. n.d. “Engelmann - s.n. - United States.” Missouri Botanical Garden. Accessed March 7, 2022. http://legacy.tropicos.org/Image/14796.