Cycas multipinnata

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Cycas multipinnata
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Cycadaceae
Genus: Cycas
Species:
C. multipinnata
Binomial name
Cycas multipinnata
C.J.Chen & S.Y.Yang

Cycas multipinnata (or Epicycas multipinnata), common name Royal Sago, is a species of cycad or Sago Palm (family Cycadaceae) in southwestern China and northern Vietnam. It is noteworthy for three things: First it is one of the tuberous species which some taxonomists segregate as the genus Epicycas. Secondly, it has the longest leaf stalks (petioles) of any Gymnosperm; up to 11.5 feet (3.5 meters). Cultivated plants have had petioles as long as thirteen feet (four meters).[2][3] The total length of the bipinnate frond can be up to 23 feet seven meters) The ultimate pinnules are Y-shaped. Thirdly, this very conspicuous plant escaped notice until 1994. Among Gymnosperms, these fronds are exceeded in mass only by Encephalartos laurentianus.

Distribution

Cycas multipinnata is found in:[4]

  • Red River gorge in eastern Yunnan
  • Honghe Nature Cycad Reserve, Yunnan
  • Xilong Mountain Natural Reserve, Yunnan
  • western Guangxi, China
  • Yen Bai Province
    , northern Vietnam

It likely occurs in Honghe, Jianshui, Mengla, and Mile counties of Yunnan.[5]

References

  1. doi:10.2305/IUCN.UK.2010-3.RLTS.T42048A10637701.en
    . Retrieved 20 November 2021.
  2. ^ Botanical Review Volume 7 issue 2 (April–June 2004) p. 164
  3. ^ https://www.plantapalm.com/vce/taxonomy/cycadaceae7.htm
  4. doi:10.2305/IUCN.UK.2010-3.RLTS.T42048A10637701.en
    . Retrieved 11 January 2020.
  5. ISBN 0-88192-522-5


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