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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 ]
Calamites, genus of tree-sized, spore-bearing plants that lived during the Carboniferous and Permian periods (about 360 to 250 million years ago). Calamites had a well-defined node-internode architecture similar to modern horsetails, and its branches and leaves emerged in whorls from these nodes.
- Nan Crystal Arens
Jan 5, 2023 · Calamites grew as short groundcover, medium-sized to tall shrubs, and even trees (called arborescent forms). Most Calamites were probably less than 10 ft tall, but fossil trunks more than 30 ft long have been reported (Scott, 1920; Rössler, 2012; Taylor, 2014), and some may have been as much as 100 ft tall (Gillespie and others, 1978)!
Calamites. 27 languages. ... about 250 to 360 million years ago. These plants were medium-sized trees, growing to heights of 30-50 meters and about 100-160 feet.
Calamites could either reproduce by spores, which were stored in small sacs and organized into cones, or they could have reproduced by massive underground rhizomes. These underground rhizomes allowed the plant to produce clones of itself. It is the only tree of this period which is known to have had the ability to produce a clone.
Calamites’ trunks consisted of hallow segments much like the modern bamboo tree. From the trunks, branches sprouted upwards with needle-like leaves at the ends. This massive tree grew to heights of 10 to 30 meters. To support its large structure, the tree had a large rhizome to maintains its anchor to the ground. This large rhizome allowed ...
Sep 11, 2017 · Calamites were characterised by fast-growing upright aerial bamboo-like thickets and extensive prostrate underground rhizome systems. They had thick hollow stem axes, forming shrubs a few meters high or trees that could grow up to 20 m high. Both the rhizome and the upright axes of calamites had distinctive nodes and internodes.
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