Sequoia Trees, Redwood National And State Parks, California, United States

Genera
The three redwood subfamily genera are: Sequoia and Sequoiadendron of California and Oregon, USA; and Metasequoia in China. The redwood species contains the largest and tallest trees in the world. These trees can live to an age of thousands of years. This is an endangered subfamily due to habitat losses from: fire ecology suppression, development, and air pollution.
• Record holders
The genera Sequoia and Sequoiadendron are massive trees. The genus Metasequoia, with the living species Metasequoia glyptostroboides, are smaller trees. The trees in Sequoioideae hold the record for the tallest and largest trees in the world. The tallest tree in the world is a Sequoia sempervirens, the Hyperion Tree. The largest tree in the world is a Sequoiadendron giganteum, the General Sherman Tree.