Table B2 . — (continued) 



18. Pseudoroegneria spicata v/ell represented 

 ARTTRI/PSESPI 



18. Pseudoroegneria spicata poorly represented or absent; Pascopy- 



rum smithii well represented 

 ARTTRI/PASSMI 



19. Rhus trilobata and Pseudoroegneria spicata well represented 



RHUTRI/PSESPI 



19. Rhus trilobata and Pseudoroegneria spicata poorly represented 



or absent — 20 



20. Juniperus horizontalis v;ell represented 



JUNHOR/SCHSCO (including JUNHOR/CARINO) 



20. Juniperus horizontalis poorly represented or absent -- 21 



21. Ceratoides lanata v;ell represented 



CERLAN/STICOM 

 21. Ceratoides lanata poorly represented or absent; Eleagnus commu- 

 tata well represented 

 ELECOM/PASSMI 



RIPARIAN KEY 

 (based on Hansen et al. 1989) 



Key to Lifeforms 



1. Trees common 



Riparian Forest/Woodland Communities 



1. Trees scarce or absent -- 2 



2. Willow species common or nonwillow shrub species well repre- 



sented 



Riparian Shrubland Communities 



2. Willow species scarce or absent and nonwillow shrub species 



poorly represented or absent -- 3 



3. Graminoids abundant 



Riparian Graminoid Communities 

 3. Graminoids not abundant; forbs well represented 

 Riparian Forbland Communities 



Key to Riparian Forest/Woodland Communities 



1. Pinus ponderosa present and reproducing successfully 



PINPON/PRUVIR 

 1. Pinus ponderosa absent -- 2 



45 



