Cycas circinalis

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Queen sago
Cycas circinalis at Kudayathoor.jpg
Cycas circinalis in Kerala
Scientific classification edit
Kingdom: Plantae
Division: Cycadophyta
Class: Cycadopsida
Order: Cycadales
Family: Cycadaceae
Genus: Cycas
Species:
C. circinalis
Binomial name
Cycas circinalis

Cycas circinalis, also known as the queen sago, is a species of cycad known in the wild only from southern India. Cycas circinalis is the only gymnosperm species found among native Sri Lankan flora.

Cultivation[edit]

The plant is widely cultivated in Hawaii, both for its appearance in landscape and interiors, and for cut foliage.[1] In the Philippines, it is locally known as patubo, pitogo or bitogo.

Use as food[edit]

The seed is poisonous. The potent poison in the seeds is removed by soaking them in water. Water from the first seed-soaking will kill birds, goats, sheep and hogs. Water from the following soakings is said to be harmless. [Minimum of 5 Soakings needed to ensure the safety]

After the final soaking, the seeds are dried and ground into flour. The flour is used to make tortillas, tamales, soup and porridge.

Lytico-bodig disease[edit]

The plant was thought to be linked with the degenerative disease lytico-bodig on the island of Guam; however, the cycad native to Guam has since been recognised as a separate species, Cycas micronesica, by K.D. Hill in 1994.

Chemistry[edit]

Leaflets of C. circinalis contain biflavonoids such as (2S, 2′′S)-2,3,2′′,3′′-tetrahydro-4′,4′′′-di-O-methylamentoflavone (tetrahydroisoginkgetin).[2]

References[edit]

  1. ^ Iwata, Ruth Y.; Rauch, Fred D. (October 1988). "King and Queen Sago". University of Hawaii. Retrieved September 24, 2012.
  2. ^ Phytochemical Investigation of Cycas circinalis and Cycas revoluta Leaflets: Moderately Active Antibacterial Biflavonoids. Abeer Moawad, Mona Hetta, Jordan K. Zjawiony, Melissa R. Jacob, Mohamed Hifnawy, Jannie P. J. Marais and Daneel Ferreira, Planta Med., 2010, 76(8), pages 796-802, doi:10.1055/s-0029-1240743

External links[edit]