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Distribution & Habitat:
It grows in full sun in low scrub on steep limestone bluffs near Tak Fa, central Thailand. It is locally abundant, but with a very restricted distribution.
A solitary cycad with dark, deeply fissured bark on a slim trunk to about 5 metres tall. It's leaves are regularly arranged, grey-green or blue, semiglossy, with flat leaflets up to 1.6 metres long.
Only described in 1990, it is thought to have originated as a hybrid between C. siamensis and C. clivicola, but has now stabilised as a species.
Sunny, well drained position preferably in a limestone based potting mix or soil.
Phasith Romyen (Figure 1,2,3,4,5,6,7,8&9)