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.
However, the leaves of Equisetum probably arose by the reduction of megaphylls, as evidenced by early fossil forms such as Sphenophyllum, in which the leaves are broad with branching veins. [ 4 ] The vascular bundles trifurcate at the nodes, with the central branch becoming the vein of a microphyll, and the other two moving left and right to ...
Equisetum arvense is toxic to stock, particularly horses. [23] It was introduced into New Zealand in the 1920s and was first identified as an invasive species there by Ella Orr Campbell in 1949. [24] It is listed on the National Pest Plant Accord, prohibiting its sale, spread and cultivation. [25]
Equisetum hyemale strobilus, at Darłówko on the Baltic Sea coast of Poland. Equisetum hyemale is native to central and northern Eurasia, including Iceland, Greenland, Kamchatka and Japan, where it forms clonal colonies in mesic (reliably moist) habitats, often in heavy clay or sandy soils in riparian zones of rivers and streams where it can withstand occasional flooding, but also in lime ...
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.
The Budweiser Clydesdale horses have been a staple mascot for the brand for more than 80 years, appearing in 47 Super Bowl commercials as of 2025. But the commercial that's held in the highest ...
Plants can cause reactions ranging from laminitis (found in horses bedded on shavings from black walnut trees), anemia, kidney disease and kidney failure (from eating the wilted leaves of red maples), to cyanide poisoning (from the ingestion of plant matter from members of the genus Prunus) and other symptoms.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!