52 RANGE INVESTK4ATIONS IX ARIZONA. 



iibiiudaiil in the Great Basin, is perfectly adapted; and A/ /•f'jjle.ti greggit 

 covers very extensive areas on many of the saline bottoms with an almost 

 pure growth, especially from ('orn Creek southeastward through the 

 Holl)rook, Adamana, and St. Johns regions. Upon the Navajo and 

 Moqui lieservation, and indeed throughout the valley of the Little 

 Colorado, shad scale tills a very important })lace upon l)oth mesas and 

 bottom lands. In the petrified forest areas there occurs a shrubby 

 species of Atriplex (No. 5085), which appears to l)e undescribed. This 

 is said to be grazed during the winter. In this same region Atriplex 

 poweUl, an annual species, covers many areas of washed lands, while 

 Atriplex expansa is abundant in some localities. 



Next in importance to the saltbushes should be mentioned the white 

 sage {Enrotla lanata\ which occupies very extensive areas upon the 

 highlands in the northern part of the Territory. It is especially 

 important, as a winter feed only, in the great highland region north 

 and east of the main divide of the San Francisco and contiguous moun- 

 tains. It is connnon in places in the higher situations in the southern 

 part of the Territory also, but luner al»undant enough to be seriousl}' 

 considered in the range ration. It is connnon in the Sulphur Spring 

 Valley and has been collected upon the Santa Rita Forest Reserve. 

 (Ireasewood {Stin-ohatvs vermicnhitiis) makes nuich winter feed in all 

 the alkaline bottoms of the Gila, Salt, and Little Colorado valleys. 

 Red sage {Koehla americana) is alnindant enough to furnish some 

 winter feed in the valley of the Little Colorado. 



The common laml)*s-quarters of the East is represented in Arizona 

 b}^ several species, which a)-e of economic importance. In southern 

 Arizona they are of more importance in the upper foothills than else- 

 where, but in the northern higher altitudes they occupy the areas under 

 the junipers upon the mesas and ridges, and sometimes cover large 

 depressions with an almost pure growth. They furnish good summer 

 feed, for sheep and goats especially. The species which grow here are 

 Chenopfxliiinileptophi/lhtnt^ C. lnranuin, ('. fi'emontn.'Awd C. ohduinl 

 (No. 5S4rl). A small annual, Monolepis tnittalliana, belonging to this 

 natural group makes a cai-pet in shallow depressions in the southern 

 part of the Territory during the spring season. This is one of the 

 plants to which the Mexicans apply the name p)aiota. It is considered 

 good feed for cattle. 



THE CLOVERS. 



There are but few situations in Arizona where the clovers are of 

 much importance, but there are suggestions that they may become 

 more abundant as time goes on. In the northern mountains Trifolium 

 iiwokicratumsindi T. longijjescoYQV sm?A\ areas in moist situations. In 

 the canyon bottoms of the southern mountains, which are devoid of 

 meadows in the ordinary acceptance, there grows a species whic'.i, 



