Ptychosperma macarthurii

Ptychosperma macarthurii, known as the Macarthur palm, is a species of plant in the family Arecaceae. It is found only in isolated occurrences in the Northern Territory and Queensland in Australia, and also in New Guinea.[1] The species is commonly used as an interior landscaping plant.[2]

Ptychosperma macarthurii
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Arecales
Family: Arecaceae
Genus: Ptychosperma
Species:
P. macarthurii
Binomial name
Ptychosperma macarthurii
(H.Wendl. ex H.J.Veitch) H.Wendl. ex Hook.f.

Ptychosperma macarthurii was named for Sir William Macarthur (1800–1882), who was one of the most active and influential horticulturists in Australia in the mid-to-late 19th century.

A population of this species near Darwin was previously named Ptychosperma bleeseri and thought to be lost due to habitat loss.[3]

Physical description

The leaves are pinnately compound and can have between 15 and 40 pinnae on each side of the rachis.[4] As an adult, its stems can grow up to 30 feet tall,[4] although most adults are typically 10 to 15 feet tall.[5]

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References
  1. Kew World Checklist of Selected Plant Families
  2. Briggs, George B.; Calvin, Clyde L. (1987). Indoor Plants. Wiley. p. 361. ISBN 978-0471032984.
  3. Ptychosperma bleeseri — Darwin Palm, Species Profile and Threats Database, Department of the Environment and Heritage, Australia.
  4. "Ptychosperma macarthurii". Australian Tropical Rainforest Plants. Retrieved 12 December 2015.
  5. "Ptychosperma macarthurii: Macarthur Palm". IFAS Extension, University of Florida. Retrieved 12 December 2015.


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