Equisetum myriochaetum (Giant Horsetail) – This prehistoric remnant is among the tallest of the living horsetails. Given optimum conditions, which includes a. Descriptions and articles about Equisetum myriochaetum in the Encyclopedia of Life. Includes Overview; Brief Summary; Comprehensive Description;. Taxonomy. Morphology Equisetum myriochaetum has. Stems – (- ) cm x 7 mm, with 16 – 44 ridges; Branches regularly in whorls. branches

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Commonly known as scouring rush the horsetails have been used by early pioneers in America as well as desperate campers today to clean pans.

Fossil evidence shows that they were a dominant part of the flora during the carboniferous period both in terms of species number and size [2]. They tend to absorb heavy metals, and so may be useful as biological monitors of water or soil contamination by zinc, cadmium and lead.

myriocbaetum Despite the controversies over this term it is still interesting to question why horsetails appear to have changed relatively little since the carboniferous period: It was reviewed on 2 August by FlickreviewR and was confirmed to be licensed under the terms of the cc-by Some thoughts on Equisetum arvense Culham Research Group. As new techniques and data become available scientists have changed their mind about how the early vascular plants, which include the ferns, horsetails and lycopsids are related to each other.

In context at www. Equisethm well as being found in the Reading University tropical glasshouseEquisetum myriochaetum grows natively in south and Central America between Mexico and Peru [7]. In this study, phytotherapeutic extracts from Equisetum myriochaetum were investigated for genotoxicity in the in vivo wing spot test in Drosophila melanogaster and in the in vitro human micronucleus test. Equisetum fossil stem, University of Reading archaeology department.


Either way it is an interesting structure to encounter and well worth studying under some form of magnification. Equisetum myriochaetum Giant Horsetail – This prehistoric remnant is among the tallest of the living horsetails. Determining the number of species that exist in the Equisetaceae and how they are related to each other has been difficult because members exhibit a large amount of morphological plasticity and hybridisation occurs frequently.

All horsetails are deep-rhizomed and spread rapidly.

Hypoglycemic effect of Equisetum myriochaetum aerial parts on type 2 diabetic patients.

Could it be a characteristic that has allowed the horsetails to survive equisrtum so long and have such a wide range? Stomata are in bands of As a quick search of twitter shows Equisetum is currently being used in a huge variety of ways ranging from tea to cellulite and hair loss cures. Equisetum myriochaetum, the Giant Myriochartum. No acute toxicity of the phytoextract could be determined in Drosophila or in human lymphocytes in culture, ranging from 0.

They must have a body plan or growth strategy that works well and has allowed them to persist for so long.

File:Equisetum myriochaetum – NBGB – IMG JPG – Wikimedia Commons

It also may explain why the horsetails have been so successful. Equisetum myriochaetum is myriochaetym Mexican plant used in folk medicine to treat kidney diseases and type 2 diabetes mellitus. They thrive in nutrient poor soils and their deep, wide-ranging rhizomes can make control difficult to impossible.


Understanding how these groups of plants are related to one another is crucial to understanding two pivotal events in the evolution of land plants; the evolution of a vascular system and the evolution of seed-bearing plants. Views View Edit History.

Despite their diminutive appearance, many horsetails are quite hardy and thrive in human disturbance. One Response to Horse tales: Instead, they produce spores and exhibit a distinct alternation of generations between the small, gamete-producing gametophyte equjsetum the tall spore-producing sporophyte.

Ancient Equisetum — In Defense of Plants

Back then, they comprised a considerable portion of those early forests. The high silicon content in their stems make them particularly good at scraping off dirt and polishing metal. The tallest of the extant horestails are the giant horsetail Equisetum giganteum and the Mexican giant horsetail Equisetum myriochaetum of Central and South America. Adobe Photoshop CS3 Windows.

This relatively small jump is enough to allow spores on the ground to be caught by the wind enabling further dispersal [9]. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file.