Chamaedorea seifrizii

This palm is native to much of Central America where it grows in lowland forests.  It is a clumping palm whose trunks can reach up to 10 feet with a diameter of less than one inch.  Clumps can get up to six feet wide.  If mine do that there will be quite a tight clump as I planted three 5 gallon pots in the same general area. 

The first clump went in around 2004.  In February of 2008 I put in the other two.  The first picture shows the first planting in 2005.  In the second photo the clump on the left is the original.