| Queen sago | |
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| InKerala | |
Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Gymnospermae |
| Division: | Cycadophyta |
| Class: | Cycadopsida |
| Order: | Cycadales |
| Family: | Cycadaceae |
| Genus: | Cycas |
| Species: | C. circinalis |
| Binomial name | |
| Cycas circinalis | |
Cycas circinalis, also known as thequeen sago, is a species ofcycad known in the wild only from southern India.Cycas circinalis is the onlygymnosperm species found among native Sri Lankan flora.
C. circinallis is native to southernIndia andSri Lanka, but the species name was formerly widely used for similar cycads in Southeast Asia, which leads to confusion in modern sources. The specimens described as "C. circinallis" inIndonesia andNew Guinea are now recognized asCycas rumphii; while the taxon formerly described as the subspeciesC. circinallis ssp.riuminiana from thePhilippines is now regarded as a separate species,Cycas riuminiana.[2][3]
The plant is widely cultivated in Hawaii, both for its appearance in landscape and interiors, and for cut foliage.[4]
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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][5]
After the final soaking, the seeds are dried and ground into flour. The flour is used to maketortillas,tamales, soup and porridge.
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The plant was thought to be linked with the degenerative diseaselytico-bodig on the island ofGuam; however, the cycad native to Guam has since been recognised as a separate species,Cycas micronesica, byK.D. Hill in 1994.
Leaflets ofC. circinalis containbiflavonoids such as (2S, 2′′S)-2,3,2′′,3′′-tetrahydro-4′,4′′′-di-O-methylamentoflavone (tetrahydroisoginkgetin).[6]
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