|Cycas circinalis in Kerala|
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.
The plant is widely cultivated in Hawaii, both for its appearance in landscape and interiors, and for cut foliage.
Male cone, new
Male cone, old
Use as food
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.
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.
- Iwata, Ruth Y.; Rauch, Fred D. (October 1988). "King and Queen Sago". University of Hawaii. Retrieved September 24, 2012.
- 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
- Cycas circinalisFloridata:
- EDIS: Queen sago
- USDA Plants Profile
- University of Hawai'i at Manoa: King and Queen Sago