CEUCIFERAE 



agency has promoted the sale of these streaked-yolked eggs. At 

 least one of our wild mustards is used for salads. This, the Water 

 Cress ( Rorip a N a s t u r t i urn* a qu at i c um) , is abundant in cool, fresh- 

 running water and in springs. One uncommon mustard ( Lyrocarpa 

 coulter i ) , is a weak shrub in very dry, hot sections of the extreme 

 southwest* It is almost prostrate, thus forming a fair soil binder 

 and it is closely browsed by stock and game. Stanleya albescens 

 is a tall, perennial with grayish, thick leaves and pale yellow 

 flowers. It is frequently heavily browsed by stock but since it is 

 reported to be a plant with a very perverse appetite for selenium, 

 its use in any region should be questioned until plants from that 

 region have been analyzed. In the nursery at Tucson this plant 

 grows luxuriantly, forming largo thick leaves of a very pleasant 

 cabbage flavor. 



CAPPAPJDACEAE 



C lecme s errulata is the common Colorado Beeplant, readily 

 recognized by its large bunches of pink flowers. It is found in 

 waste places throughout the west and is commonly considered a worth- 

 less weed. It is certain that it becomes abundant in places as a 

 result cf overgrazing. In many places it has apparently given way 

 to Russian Thistle. The common name of the plant indicates that 

 it is a choice with the bee. As it blossoms almost continuously 

 from early summer until late fall if there are good summer rains, 

 it must supply much honey. The plants which are often three to 

 four feet high are sometimes mowed and placed in silos, the ensilage 

 being reported to make passable c ow feed. The seed and leaves are 

 used in various ways by the Indians as food. C, sonorae is a simi- 

 lar plant to C, sorr ulata but has very short pods ( one -ha If inch 

 long) in contrast to those of C, serrulata, which are two to four 

 inches long« 



Clecme l uto a is quite similar to the Colorado Beeplant but 

 has bright y •si low flowers. It is abundant in places but not so gen- 

 eral as the Colorado LcerC art There norm to be no reports of its 

 use by stock or Lidians though it is probable it can bs similarly 

 used t 



Wisli.:en - ' t r .-f racta hat a general appearance of t. 1 : e yellow- 

 flowered beeplant ': v.t ha a a two-seeded, two-valved fruit instead of 

 the long pod. It is a weed in western Texas and extreme southern 

 New Mexico 



P o laris ia trachysoerjaa is called Clancy-Weed, It is a 

 glandular sticky, foul-smelling weed resembling the Colorado Bee- 

 plant, The flowers are quite showy, entirely out of keeping with 

 the foul smell of the plant as a whole. Though this plant is very 



