Schizolobium parahyba (Vell.) S.F. Blake

Etymology Genus
Divided (=Schizo) pods (=lobo); the inner & outer layers of the pods separated when mature
Species After the state of Paraíba or the Paraíba River in Brazil
Synonyms Cassia parahyba Vell.
Common Names Brazilian Fern Tree, Guapuruvu
Status Exotic: Cultivated Only
Form Tree
Native Distribution Tropical America

Diagnostic: On first glance, Schizolobium parahyba look somewhat like a prehistoric tree. It is usually single-stemmed or sparsely branching from the individuals I have observed in Singapore, though photos of it in other countries showed that it can be otherwise. The large bipinnate leaves are arranged spirally near the tips of the branches, and the stem is very prominently marked by leaf scars.

Interesting Facts: The Brazilian Fern Tree is a very fast growing tree species, with a growth rate of about 2m a year as recorded in one study (Piotto et al., 2004). It's unique form and splash of yellow flowers during its seasonal blooms makes it a popular cultivated tree at gateways and entrances.

 
  Spiral arrangement of its large fern-like leaves.
   
 
Form of the Brazilian Fern Tree at Ang Mo Kio Hub.    
 
 
Leaflets.
 
Prominent leaf scars on the stem.   Yellowish inflorescences.

References

Piotto D, Viquez E, Montagnini F, Kanninen M. (2004) Pure and mixed forest plantations with native species of the dry tropics of Costa Rica: a comparison of growth and productivity. Forest Ecology and Management, 190: 359-371.

 
Posted on 4-Apr-2015 / Last Updated on 05-Apr-2015
Family: Fabaceae