WOOTON AND STANDLEY FLORA OF NEW MEXICO. 201 



Suaeda moquini A. Nels. iu Coulter, New Man. Rocky Mount. 170. 1909. 



Type locality: Mountain on the west shore of the Salt Lake, Utah. 



Range: Wyoming and Colorado to California and New Mexico. 



New Mexico: Carrizo Mountains; Llano Estacado; Farmington; Alamogordo; 

 White Sands; south of Roswell; Las Mitas. Alkaline soil, in the Lower and Upper 

 Sonoran Zones. 



4. ALLENROLFEA Kuntze. Burko weed. 



Succulent erect much-branched perennial, somewhat woody at the base; leavi a 

 scalelike, broadly triangular; flowers in dense spikes, in threes in the axils of the 

 spirally ranked bracts. 

 1. Allenrolfea occidentalis (S. Wats.) Kuntze, Rev. Gen. PI. 2: 546. 1891. 



Halostachys occidentalis S. Wats, in King, Geol. Expl. 40th Par. 5: 293. 1871. 



Spirostachys occidentalis S. Wats. Proc. Amer. Acad. 9: 125. 1874. 



Type locality: "About Great Salt Lake and in alkaline valleys westward to I 

 sinks of the Carson and Humboldt Rivers." 



Range: Utah and Nevada to Arizona and western Texas. 



New Mexico: Socorro; Mesilla Valley; White Sands; above Tularosa; Roswell. 

 Alkaline soil, in the Lower Sonoran Zone. 



A very peculiar, almost leafless, shrubby halophyte. The young branches are 

 terete, of a pronounced green (though sometimes glaucous), and very succulent, li 

 grows to a height of about 150 cm. and is usually conspicuous for color alone among 

 the gray or brown plants with which it is commonly associated. It is sparingly eaten 

 by burros, hence the common name. 



5. EUROTIA Adans. Winter fat. 



A low, stellately tomentose shrub; leaves alternate, entire, linear to narrowly linear- 

 lanceolate; flowers small, clustered, axillary and subspicate; calyx 4-parted ; stamens i 



1. Eurotia lanata (Pursh) Moq. Chenop. 81. 1840. 



Diotis lanata Pursh, Fl. Amer. Sept. 602. 1814. 



Type locality: "On the banks of the Missouri, in open prairies." 



Range: New Mexico and Arizona, northward to Oregon and Manitoba. 



New Mexico: Common nearly throughout the State. Dry hills and plains, in tin- 

 Upper Sonoran Zone. 



The plant is highly prized by stockmen, particularly those who raise sheep, l.ecauso 

 it furnishes a good feed when other kinds are scarce — hence the common name. 



6. ATRIPLEX L. Salt bush. 



Monoecious or dioecious, mealy or scurfy annuals or perennials; ataminate 

 bractleas, variously clustered; pistillate flowers subtended by 2 persistent bi 

 these becoming variously enlarged, thickened, and coalescenl in Emit; leaves flat, 

 alternate or opposite. 



The genus contains several species which are of value as forago plants, most of them 

 being eaten more or less. One (-4. expansa) is a common tumblewee I in th< i tiltivated 

 lands in certain parts of the State. The plants occur mostly in open flats, prefei 

 rather compact soils, and all of them will tolerate considerable alkali in the 



KEY TO Till' SFKI n 



Annuals 



Leaves narrow, oblong to oblanceolate; plant- niostlv i ■ ro« t 

 the branches aol u idely spreading. 

 Plants low, io cm. high or less; fruiting bracts con 

 pletely united, orbicular, flattened, the margins 

 with numerous teeth; leaves small, 2cm. Ion 

 less 1 - 1 • < l"jans. 



