The species and species codes used in CACTOS include the following:



Species                 Code    Abbreviation

ponderosa pine          1       PP
sugar pine              2       SP
incense cedar           3       IC
Douglas-fir             4       DF
white fir               5       WF
red fir                 6       RF
lodgepole pine          7       LP
white pine              8       WP
Jeffrey pine            9       JP
miscellaneous conifer   10      MC
chinquapin              11      CO
black oak               12      BO
tan oak                 13      TO
miscellaneous hardwood  14      MH