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30–50 meters (100–160 feet)
- Calamites is a genus of extinct arborescent (tree-like) horsetails to which the modern horsetails (genus Equisetum) are closely related. Unlike their herbaceous modern cousins, these plants were medium-sized trees, growing to heights of 30–50 meters (100–160 feet).
en.wikipedia.org/wiki/Calamites
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 grew to 20 metres (about 66 feet) tall, standing mostly along the sandy banks of rivers, and had the ability to sprout vigorously from underground rhizomes when the upper portions of the plant were damaged.
- 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)!
They were prehistoric relatives of the modern horse tail, but looked more like a pine tree and grew up to 40 feet. They had upward-slanted slender branches, arranged around a bamboo-like trunk in rows spaced several feet apart and had conifer-like needles arranged around the ends of the branches.
The plant body of Calamites was a tall tree (Fig. 96) growing to a height of 20-30 metres. The plant had an underground prostrate rhizome. The rhizome was differentiated into nodes and internodes and had a whorl of adventitious roots at each node.
Calamities were horsetail like trees that went extinct 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. The trunk of these trees had an appearance like a bamboo trunk while the leaves were needle-shaped.
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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 ...
