746 
Journal of Agricultural Research 
Vol. XXVIII, No. 8 
BOTANICAL COMPOSITION 
In the typical areas of this association the desert-sage ( Atriplex polycarpa 
(Torr.) S. Wats.) is the only woody species present (figs. 10 and 11) with the 
exception of scattered mesquite ( Prosopis glandulosa Torr.). In the Gila Valley 
(fig. 11), especially in the lower places, Lycium parviflorum A. Gray, Lycium 
gracilipes A. Gray, Dondia intermedia (S. Wats.) Heller and Atriplex linearis 
plant by the small figures. Annuals were sparse and not blooming at this time. Mapped March 1, 
1915, Indio, Calif. 
S. Wats, are quite frequent. Atriplex canescens (Pursh) Nutt, is frequent in 
desert-sage areas in both valleys. 
Lists containing all the perennial species noted in the desert-sage areas in 
Coachella and Gila Valleys are given below: 
PERENNIAL SPECIES OF THE DESERT-SAGE ASSOCIATION IN COACHELLA VALLEY 
Common or Frequent 
Atriplex polycarpa (Torr.) S. Watts. Isocoma veneta acradenia (Greene) H. 
Prosopis glandulosa Torr. M. Hall. 
Strombocarpa pubescens (Benth.) A. 
Gray. 
Less Frequent or Rare 
Asclepias subulata Decne. Dondia torreyana (S. Wats.) Standi 
Atriplex canescens (Pursh) Nutt. Eriodyction angustifolium Nutt. 
Atriplex lentiformis (Torr.) S. Wats. Pluchea sericea (Nutt.) Coville. 
Covillea glutinosa (Engelm.) Rybd. 
