259] FLORA OF BOULDER, COLORADO III 



138. DONDIA Adans. Sfa elite. 



369. D. depressa (Pursh) Britten [Siiaeda depressa S.Wats.]. 

 Low SEA elite. 



About the shores of Boulder lake, .ond other brackish lakes 

 and pools, 5100-6000 ft. (Daniels, 778). Near Boulder (W. W. 

 Robbins). 



Saskatchewan to Montana; Colorado to Nevada, 



369>^. D. erecta (S. Wats.) A. Nels. [Suaeda depressa 

 erect 2 S. Wats.]. Erect sea bliti:. 

 Calkins lake (W. W. Robbins). 

 North Dakota to Montana; Colorado to Nevada. 



139. SALSOLA L. Saltwort. Sea kale. 



370. S. Tragus L. Russian thistle. 



Very common in waste places and along railroads, 5100- 

 7000 ft. (Daniels, 419). 



Europe and Asia, thence to North America. 



Family 38. AMARANTHACEAE J. St. Hil. Amaranth 



family. 



140. AMARANTHUS L. Amaranth. Pigweed. 



371. A. Powellii S. Wats. Powell's pigweed. 

 Sandy valleys at Boulder (Rydberg). 

 Texas to Colorado and California. 



372. A. retroflexus L. Rough pigweed. 



Abounding in fields and waste places, 5100-7000 (clearings 

 in Bear Canon, perhaps even higher in the mountains) ft. 

 (Daniels, 812). 



Tropical America, thence a cosmopolitan weed. 



373. A. blitoides S. Wats. Prostrate pigweed. 



Along thoroughfares, and in fields, waste places, and creek- 

 sands throughout, very common, 5100-10000 ft. (Daniels, 814). 



Colorado to Utah and Mexico, thence to the rest of the 

 United States and Southern Canada. 



