BERBERIDACEAE 



cool, damp places in the mountains. It is not susceptible to grain 

 rust but because of moisture and soil requirements," is unsuited for 

 erosion control work except in very limited sites. • 



• 



Berberis aquif olium probably does not occur in our range. 

 One very similar to it, hov, r ever, occurs in our southwestern ranges, 

 the Huachuca, Santa Rita and Chiricahuas for example. It is a 

 shrub frequently four or five feet high which closely resembles 

 B. rep ens except in height. As it is confined to wet canyons it 

 doubtless will never be of value as an erosion control plant, 



*Berberis sp. A very handsome trifoliate Barberry occurs 

 in the Kof.a Mountains in western Arizona. For convenience we may 

 call it the Kofa Mountain Barberry. It is a shrub three to five 

 feet high with a marked tendency to droop to the ground and root 

 or layer. Its susceptibility to grain rust has not been determined 

 but because of its drought resistance, good fruiting habits and 

 tendency to layer, it should be given careful trial in our obser- 

 va t i o na 1 wo rk . 



PAFAVERAOEAE 



Argemono spp. All of our white Prickly Poppies are enough 

 alike that they may well be discussed together. All are weeds in 

 waste places and arc frequently abundant along sandy roclry bottoms 

 which have boon heavily overgrazed. Since they do not constitute 

 weeds which arc hard to exterminate and since the poppy seeds are 

 almost the only food in certain sections for great flocks of doves 

 for perhaps two months or more during late summer and fall, their 

 use may be justified in wildlife programs. The plants are not 

 good forage and their erosion control value is negligible. Since 

 the genus contains both annuals and perennials their questionable 

 use should recommend the annual s • Extensive analysis may show that 

 this genus contains species high in narcotic content. 



Bsohscholtzia calif ornioa, "the California Poppy, following 

 winters of considerable rainfall puts a complete covering of gold 

 over many of the foothills of southern New Mexico, southern Arizona 

 and westward thr ough the Mohave Desert and the deserts of southern 

 Utah and Fevada, It is highly prized as a quick annual forage 

 plant but owing to the fact that it dies in a short time raid that 

 the last remnants of the plants disappear, it is practically worth- 

 less for erosion control. It is raised as a garden flower practi- 

 cally throughout the United States. 



SAX IPRAGAC EAE 



Philadelphus spp . There arc two or thro o species of the 



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