''Cycas ferruginea'' is a plant species native to

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i ...

and to the

Guangxi Guangxi (; ; Chinese postal romanization, alternately romanized as Kwanghsi; ; za, Gvangjsih, italics=yes), officially the Guangxi Zhuang Autonomous Region (GZAR), is an Autonomous regions of China, autonomous region of the People's Republic ...

region of

China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...

. It grows on rocky crevices in forested areas at elevations of 200–500 m.Flora of China v 4 p 6 ''Cycas ferruginea''
/ref> It is known from a belt of limestone bluffs in

Lang Son Province Lang may refer to: *Lang (surname), a surname of independent Germanic or Chinese origin Places * Lang Island (Antarctica), East Antarctica * Lang Nunatak, Antarctica * Lang Sound, Antarctica * Lang Park, a stadium in Brisbane, Australia * Lang, ...

and Thai Nguyen Province in Vietnam, and in western

Province, China. It is also cultivated at the Guilin Botanical Garden,

. ''Cycas ferruginea'' has pinnate leaves up to 2 m long. Seeds are brown, egg-shaped, up to 3 cm long.Wei, Fa-nan 1994. Guihaia 14(4): 300, f. 1–6, ''Cycas ferruginea''

References

{{Taxonbar, from=Q10262618 ferruginea Flora of China Flora of Vietnam Flora of Guangxi Plants described in 1994