Ads
related to: horsetail plant characteristics- Home Decor Favorites
Find New Opportunities To Express
Yourself, One Room At A Time
- Personalized Gifts
Shop Truly One-Of-A-Kind Items
For Truly One-Of-A-Kind People
- Star Sellers
Highlighting Bestselling Items From
Some Of Our Exceptional Sellers
- Black-Owned Shops
Discover One-of-a-Kind Creations
From Black Sellers In Our Community
- Home Decor Favorites
Search results
Results from the WOW.Com Content Network
Equisetum (/ ˌ ɛ k w ɪ ˈ s iː t əm /; horsetail) is the only living genus in Equisetaceae, a family of vascular plants that reproduce by spores rather than seeds. [2]Equisetum is a "living fossil", the only living genus of the entire subclass Equisetidae, which for over 100 million years was much more diverse and dominated the understorey of late Paleozoic forests.
Equisetum arvense, the field horsetail or common horsetail, is an herbaceous perennial plant in the Equisetidae (horsetails) sub-class, native throughout the arctic and temperate regions of the Northern Hemisphere. It has separate sterile non-reproductive and fertile spore-bearing stems growing from a perennial underground rhizomatous stem system.
Equisetum hyemale (rough horsetail [2]) is an evergreen perennial herbaceous pteridophyte in the horsetail family Equisetaceae native to Eurasia and Greenland. It was formerly widely treated in a broader sense including a subspecies (subsp. affine ) in North America, but this is now treated as a separate species, Equisetum praealtum .
The plant is well identifiable from the 3-6 reddish brown leaf sheaths or "teeth". [1] [3] The fertile stems are shorter than the others; on these develop the cones that bear the spore casings or strobili. [1] The leaves develop on the fertile stems and the stems lengthen; then the cones open to release their spores. The cones then drop off.
The plants have intercalary meristems in each segment of the stem and rhizome that grow as the plant gets taller. This contrasts with most seed plants, which grow from an apical meristem - i.e. new growth comes only from growing tips (and widening of stems). Horsetails bear cones (technically strobili, sing. strobilus) at the tips of some stems.
Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. [1] Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of 30–50 meters (100–160 feet). [2]
Equisetaceae is the only surviving family of the Equisetales, a group with many fossils of large tree-like plants that possessed ribbed stems similar to modern horsetails. Pseudobornia is the oldest known relative of Equisetum ; it grew in the late Devonian , about 375 million years ago and is assigned to its own order.
Equisetum laevigatum is a species of horsetail in the family Equisetaceae. [2] [3] It is known by the common names smooth horsetail [4] and smooth scouring rush. This plant is native to much of North America except for northern Canada and southern Mexico. It is usually found in moist areas in sandy and gravelly substrates. It may be annual or ...
Ads
related to: horsetail plant characteristics