PAPILIONACSAE 



Daloa johnso nii is a straggling open bush often three or four 



foot high with very few narrow leaflets. The entire hush has a 

 grayish green color similar to that of the smoke tree but the bush 

 is far less compact and the branches more tortuous. It has rather 

 long spikes of intensely blue flowers which make the bush very showy 

 during the time of blossoming. This species is confined to the 

 extremely dry desert region;; of southern Utah and adjacent Nevada 

 and California, It is too open to be of much value as an erosion 

 control plant, and it does not seem to be browsed. It is possible, 

 however, that the glandular leaves, stems and flower clusters may 

 yield a valuable oil or dye, and the plant should be worthy of 

 consideration as an ornamental in desert gardens. 



Daloa ameena is a species closely related to D. jo hnson ii. 

 It, however, is a smaller bush and has much smaller flower clusters. 

 Its range is southern Utah and adjacent northern Arizona. VJliat has 

 been said of D. johnsonii is equally true of this species. 



Daloa wrightii is a low spreading herb with a large woody root. 

 The leaves are silvery gray and tho plant for the most part is pros- 

 trate or nearly so. Commonly the growth is spare o on the range, 

 possibly due to over-grazing. It occurs on the dry rocky slopes and 

 hilltops of southern Arizon." and southern New Mexico. Owing to its 

 woody, much divided caudex and its prostrate habit, it would moke 

 an excellent erosion control plant if it could be obtained in ade- 

 quate stands. This probably should be considered a browse plant 

 though it con hardly be thought of as a shrub. 



Dalo a p ogononthera is a plant resembling superficially the 

 plant last discussed. This one, however, is commonly orect, and 

 for that reason may not be as good an erosion control plant. How- 

 ever, it is one of the important browse plants in certain sections 

 of the foothills of the Santa Rita and Baboquivari Mountains. Its 

 general range is southern New Mexico and southern Arizona. This 

 plant should be given a careful trial in the nursery and in observa- 

 tions 1 work. 



Daloa parryi is a low suff rutescent perennial with widely 

 spreading branches. It grows in extreme southern Arizona and adja- 

 cent Mexico. On the west slope of the Baboquivari Mountains it forms 

 an appreciable part of the ground cover in small areas and constitu- 

 tes a fair soil binder. A plant growing in the nursery at Tucson 

 lias formed a beautiful, wide-spreading plant with an abundance of 

 spicate blue flowers read seed pods. Nothing is known at present 

 about its palatability but otherwise it is a plant of promise for 

 r eve get at i on wo r k • 



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