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With a flower growing up to 1.5 m (5 ft) in diameter, 3–4 m (10–13 ft) in perimeter and 10–12 kg (22–26 lb) in weight, Rafflesia arnoldii is the world's current largest individual flower. They grow in the forests of Sumatra and Borneo islands of Indonesia.
The conifer division of plants includes the tallest organism, and the largest single-stemmed plants by wood volume, wood mass, and main stem circumference.The largest by wood volume and mass is the giant sequoia (Sequoiadendron giganteum), native to Sierra Nevada and California; it grows to an average height of 70–85 m (230–279 ft) and 5–7 m (16–23 ft) in diameter. [1]
A form of flowering plant that far exceeds Pando as the largest organism on Earth in area and potentially also mass, is the giant marine plant, Posidonia australis, living in Shark Bay, Australia. Its length is about 180 km (112 mi) and it covers an area of 200 km 2 (77 sq mi). [8] [9] It is also among the oldest known clonal plants.
Although this may be an overestimate, this is likely the longest lived animal on Earth. [64] [65] [66] Specimens of the black coral genus Leiopathes, such as Leiopathes glaberrima, are among the oldest continuously living organisms on the planet: around 4,265 years old. [67] Giant barrel sponges can live more than 2,000 years.
The gymnosperms consist of five orders of seed plants: Cupressales, Cycadales, Ginkgoales, Gnetales and Pinales. [a] They developed more than 350 million years ago, long before flowering plants, according to the fossil record. The name comes from the Greek for "naked seed"; the egg cells are not protected by ovaries, as in flowering plants. [4]
This daisy relative from Japan was once the longest accepted plant name, but it has since been recognised as an intergeneric hybrid and taxonomists have placed the name in synonymy within the genus Crepidiastrum as Crepidiastrum × nakaii H.Ohashi & K.Ohashi. [10] Epithelionematobothrium mulloidichthydis Yamaguti 1970 - family Didymozoidae.
A Palmer oak in Jurupa Valley is estimated to be 13,000 to 18,000 years old. The plant, which looks like a sprawling, dark green shrub, is now at the center of a development battle.
The longest monocot. It also weighed 250 pounds (110 kg). It is unknown whether it could grow this long or this heavy in the wild. Rattan Manau (Calamus manan, or Calamus ornatus (Palmae, or Arecaceae) East Indies. This one at the Buitenzorg (now Bogor) Botanic Gardens, Java, Indonesia. 787 feet (240 m) exactly. The longest exact measurement ...