Tony, How would one distinguish between flavissima and citrina? I thought maybe Z citrina was a possibility since it is a common garden plant and apparently naturalizes. If there are other photos or measurements that would help let me know. Tim Chapman On Sep 9, 2012, at 9:40 AM, Tony Avent <Tony@plantdelights.com> wrote: > Tim: > > Your yellow zephyranthes sure looks like the South American native Z. flavissima.