Puneet Varma

Equisetum sylvaticum

Updated on
Share on FacebookTweet on TwitterShare on LinkedIn
Kingdom  Plantae
Family  Equisetaceae
Subgenus  E. subg. Equisetum
Higher classification  Puzzlegrass
Order  Equisetales
Genus  Equisetum
Scientific name  Equisetum sylvaticum
Rank  Species
Equisetum sylvaticum Equisetum sylvaticum wood horsetail Go Botany
Similar  Puzzlegrass, Equisetum palustre, Equisetum pratense, Equisetum fluviatile, Equisetum telmateia

Bospaardestaart equisetum sylvaticum 11 mei 2011 wmv


Equisetum sylvaticum, the wood horsetail, is a horsetail (family Equisetaceae) native to the Northern Hemisphere, occurring in North America and Eurasia. Because of its lacy appearance, it is considered among the most attractive of the horsetails.

Contents

Equisetum sylvaticum Equisetum sylvaticum wood horsetail Go Botany

Botanical description

Equisetum sylvaticum Equisetum sylvaticum Wood Horsetail Woodland horsetail PFAF Plant

This perennial horsetail has erect, hollow stems that grow from 30 to 60 cm in length and from 1-4 mm thick. The branches themselves are compound and delicate, occurring in whorls and drooping downward. There are generally 12 or more branches per whorl. Fertile stems are at first tan-to-brown and unbranched, but later become like the sterile stems, which are more highly branched and green. All the stems have 10-18 spiny vertical ridges that contain silica spicules. The leaves are scales fused into sheaths that cover the stems and branches. These spiny leaves are larger and looser on the fertile stems.

Equisetum sylvaticum British Horsetails Equisetum sylvaticum L

The fertile stems are shorter than the others; on these develop the cones that bear the spore casings. The leaves develop on the fertile stems and the stems lengthen; then the cones open to release their spores. The cones then drop off. This process takes a few weeks. All the stems may continue to grow until fall and generally die back over winter.

Reproduction

Equisetum sylvaticum httpsuploadwikimediaorgwikipediacommons88

This plant reproduces by spores, but its primary means of reproduction is done vegetatively by rhizomes. These rhizome systems are deep and extensive, as well as extremely long-lived. These creeping rhizomes occasionally produce tubers, and often outweigh the above-ground growth by 100 to 1.

Habitat

Equisetum sylvaticum Equisetum sylvaticum Wood Horsetail Woodland horsetail PFAF Plant

These horsetails are commonly found in wet or swampy forest, open woodlands, and meadow areas. The species name sylvaticum is Latin for "of the forests", emphasizing that the wood horsetail is most commonly found in forested habitats. The plant is an indicator of boreal and cool-temperate climates, and very moist to wet, nitrogen-poor soils.

Equisetum sylvaticum sylvaticum
Equisetum sylvaticum Equisetum sylvaticum
Equisetum sylvaticum FileEquisetum sylvaticum metskortejpg Wikimedia Commons
Equisetum sylvaticum Online Virtual Flora of Wisconsin Equisetum sylvaticum

References

Equisetum sylvaticum Wikipedia


Similar Topics
Equisetum fluviatile
Equisetum palustre
Equisetum pratense
Topics