A whole issue of Mariposa discussed how challenging the answer to this question is. https://pacificbulbsociety.org/pbswiki/files/… > You can see the photo that accompanied the post below at: > > https://pacificbulbsociety.org/pbsforum/index.php/… > > > > > On 16/05/2022 21:54, Jim Barton via pbs wrote: >> Is this a yellow Calochortus superbus or a C. superbus X luteus? >> Jim Barton _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> PBS Forum https://…