Seeds of Success (SOS) is a Federal interagency native plant materials development program. It supports and coordinates seed collection from native plant populations in the U. S. for land rehabilitation, restoration and stabilization.  NLGRP is partnering with these agencies to store backup samples for the SOS program.  These samples are part of the NPGS Base Collection.

Pinus flexillis AKA Limber Pine Collected from Wyoming.

Chilopsis linearis AKA Desert Willow Collected from Arizona