[APD] Sagittaria subulata (and platyphylla)

[Andrew McLeod <thefish at theabyssalplain_freeserve.co.uk>]

Firstly, I am having trouble finding out the origin of Sagittaria 
subulata. Some sources show it as N. American, and some as S. American, 
and many more as American. I assume that it is native to both, but I'd 
just like to be sure.
Secondly, I understand that Sagittaria Platyphylla (given the common name 
Spongy leaf sag by my mail-order plant company) often refers to Sagittaria 
lancifolia, which again may or may not come from S. America, but is there 
any easy way to tell them apart (preferably that I could tell from a bad 
photo).
Thanks!

--
Andrew McLeod
thefish at theabyssalplain_freeserve.co.uk

This email was scanned carefully before transmission to remove any 
content, information or relevance.
_______________________________________________
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com
http://www.actwin.com/mailman/listinfo.cgi/aquatic-plants