Equisetum telmateia - Citizendia

Equisetum telmateia

Kingdom:	Plantae
Division:	Pteridophyta
Class:	Equisetopsida
Order:	Equisetales
Family:	Equisetaceae
Genus:	Equisetum
Species:	E. Plants are living Organisms belonging to the kingdom Plantae. A fern is any one of a group of about 20000 Species of Plants classified in the phylum or division Pteridophyta, also known as Filicophyta Equisetopsida, or Sphenopsida, is a class of Plants with a fossil record going back to the Devonian. The Equisetales is an order of pteridophytes with only one living genus Equisetum (horsetails Equisetum is a genus of Vascular plants that reproduce by spores rather than seeds Equisetum is a genus of Vascular plants that reproduce by spores rather than seeds telmateia

Binomial name

Equisetum telmateia
Ehrh.

Equisetum telmateia (Great Horsetail or Giant Horsetail) is a species of Equisetum (horsetail) with an unusual distribution, with one subspecies native to Europe, western Asia and northwest Africa, and a second subspecies native to western North America. Jakob Friedrich Ehrhart (1742-1795 was a German Botanist, a pupil of Carolus Linnaeus at Uppsala University, and later Director of the Equisetum is a genus of Vascular plants that reproduce by spores rather than seeds In Zoology, as in other branches of Biology, subspecies is the Taxonomic rank immediately subordinate to a Species. ^[1]^[2]

Spore-bearing strobilus

It is a herbaceous perennial plant, with separate green photosynthetic sterile stems, and pale yellowish non-photosynthetic spore-bearing fertile stems. A herbaceous plant (or in botanical use a Herb) is a Plant that has leaves and stems that die down at the end of A perennial plant or perennial ( Latin per, "through" annus, "year" is a Plant that lives for more than Photosynthesis is a Metabolic pathway that converts Light Energy into Chemical energy. In Biology, a spore is a reproductive structure that is adapted for dispersal and surviving for extended periods of time in unfavorable conditions The sterile stems, produced in late spring and dying down in late autumn, are 30-150 cm (rarely to 240 cm) tall (the tallest species of horsetail outside of tropical regions) and 1 cm diameter, heavily branched, with whorls of 14–40 branches, these up to 20 cm long, 1–2 mm diameter and unbranched, emerging from the axils of a ring of bracts. In Botany, a bract is a modified or specialized Leaf. Bracts are ordinarily associated with reproductive structures (subtending Flowers Inflorescence The fertile stems are produced in early spring before the sterile shoots, growing to 15–45 cm tall with an apical spore-bearing strobilus 4–10 cm long and 1–2 cm broad, and no side branches; the spores disperse in mid spring, with the fertile stems dying immediately after spore release. A strobilus (plural strobili is an organ of many Plants that contains the reproductive structures Occasional plants produce stems that are both fertile and photosynthetic. ^[2]^[3]^[4]

It is found in damp shady places, spring fens and seepage lines, usually in open woodlands, commonly forming large clonal colonies. A fen is a type of Wetland fed by surface and/or groundwater Fens are characterized by their water chemistry which is neutral or Alkaline Fens are different Soil mechanics is a discipline that applies principles of Engineering mechanics, e "Ramet" redirects here For the commune in Alba County, Romania see Râmeţ. ^[2]^[3]

There are two subspecies:^[1]^[4]

Equisetum telamteia subsp. telmateia. Great Horsetail. Europe, western Asia, northwest Africa. Main stem between branch whorls pale greenish white.
Equisetum telamteia subsp. braunii (Milde) Hauke. Giant Horsetail. Western North America, from southeastern Alaska and western British Columbia south to California. Alaska ( Аляска Alyaska) is a state in the United States of America, in the northwest of the North American continent British Columbia (ˌbrɪtɨʃ kəˈlʌmbiə ( BC) ( (la Colombie-Britannique C California ( is a US state on the West Coast of the United States, along the Pacific Ocean. Main stem between branch whorls green.

References

^ ^a ^b Germplasm Resources Information Network: Equisetum telmateia
^ ^a ^b ^c Hyde, H. A. , Wade, A. E. , & Harrison, S. G. (1978). Welsh Ferns. National Museum of Wales ISBN 0-7200-0210-9.
^ ^a ^b Clapham, A. R. , Tutin, T. G. , & Warburg, E. F. (1981). Excursion Flora of the British Isles, 3rd ed. , Cambridge: University Press, 6. Cambridge University Press (known colloquially as CUP is a Publisher given a Royal Charter by Henry VIII in 1534 ISBN 0521232902.
^ ^a ^b Flora of North America: Equisetum telmateia

Equisetum telamteia subsp. braunii, San Jose, California, showing green stem.

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