photosynthesis questions about Tamarix and Atriplex

[Jethro Bodine]

Lines: 5
NNTP-posting-host: alamo-temp-08.nmsu.edu

I'm looking for some information about Atriplex canescens (Four-wing
saltbush) and Tamarix pentandra, T. ramossisima, and T. gallica (salt
cedar, tamarisk).  Which, if any of these, are C-3 and which are C-4?
Thanks.