Cycas revoluta (sago cycad), is an attractive plant native to southern Japan. Though
often known by the common name of king sago palm, or just sago palm, it is not a
palm at all, but a cycad.
This very symmetrical plant supports a crown of shiny, dark green leaves on a thick
shaggy trunk that is typically about 20 cm (7.9 in) in diameter, sometimes wider.
The trunk is very low to subterranean in young plants, but lengthens above ground
with age. It can grow into very old specimens with 6–7 m (over 20 feet) of trunk;
however, the plant is very slow-growing and requires about 50–100 years to achieve
this height. Trunks can branch multiple times, thus producing multiple heads of