Chlorocardium
| Chlorocardium rodiei
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| Chlorocardium rodiei (M.R.Schomb.) Rohwer et al. | ||||||||||||||
Chlorocardium rodiei (Greenheart) is a member of the family Lauraceae. It is the sole species of the genus Chlorocardium, formerly classified in either of the genera Nectandra or Ocotea, as Nectandra rodiei or Ocotea rodiei. Other local names include sipiri, beeberu and bibiru. It is native to northern South America, chiefly in Guyana (formerly British Guiana).
It is an evergreen tree growing to 15-30 m tall with a trunk diameter of 35-60 cm. The leaves are opposite, simple, with an entire margin. The fruit is a drupe containing a single seed.
Uses
The wood is extremely hard and strong, so hard that it cannot be worked with standard tools. Being extremely durable in marine conditions, Greenheart is used extensively in the building of docks and in similar applications and was an early choice for fly fishing rods.
Greenheart is listed on the IUCN Red list (1996) as Vulnerable. Between 15 and 28% of the original population has been harvested to date. Harvesting as a commercial timber began in the late 1700s, but most of the harvesting has only taken place since the introduction of chainsaws in 1967.
The Fram and the Endurance, the two strongest wooden ships ever constructed and made famous in the polar expeditions of Amundsen and Shackleton, were sheathed in greenheart to prevent the ships from being crushed by ice.
