Rydberg clover, sometimes called wild white clover, is a charac- 

 teristic white, perennial, native clover named in honor of Dr. P. A. 

 Rydberg (1860-1931), a well-known American botanist. It occurs 

 in the Rocky Mountains and Wasatch Mountains from Idaho and 

 Montana to northern New Mexico and Arizona, at elevations of from 

 about 4,500 feet up to 13,000 feet. Rydberg clover is most abundant 

 along creek bottoms and in moist meadows. Although not very 

 tolerant to shade, it appears commonly in open mature timber at 

 the higher elevations, where it often forms rather dense patches 

 in the openings between the trees. 



This leafy clover withstands grazing well and is of considerable 

 forage value, having a palatability rating of from very good to 

 excellent for all classes of livestock. It is reputed to be a favorite 

 food plant of the mule deer on the Kaibab Forest in Arizona and is 

 undoubtedly highly palatable to other game animals. On some of 

 the high mountain ranges in the fir and spruce belt, the rather high 

 grazing capacity is due largely to the abundance of this clover. 



Rydberg clover is a smooth, leafy, erect, long-rooted clover, 

 usually about 10 inches high, although sometimes much higher. 

 The numerous white flowers, which bend abruptly downward with 

 age, are arranged in a dense head. The plant usually forms a rather 

 dense sod but sometimes occurs as single or somewhat tufted plants. 



