32 BULLETIN 1345, U. S. DEPARTMENT OF AGRICULTURE 
ERIOGONUM HEERMANNI Dur. and Hilg. 
Eriogonum heermanni is a leafy shrub, 114 to 2 feet high, with 
repeatedly branched, short panicles of rose-colored or yellowish 
flowers. The leaves are at first white and woolly, later becoming 
smooth, about half an inch long, and petioled. The panicle is spines- 
cent and smooth. This species grows in the Mojave Desert region, 
ranging northward to the Sierra ‘Nevada and into Nevada, where it is 
common. 
A sample analyzed in the Nevada experiment station (3) contained, 
on an air-dry basis, 6.7 per cent of moisture, and, on a water-free 
basis, 7.3 per cent of ash, 7.7 per cent of ether extract, 24.6 per cent 
of crude fiber, 49.9 per cent of nitrogen-free extract, and 10.5 per 
cent of protein. 
ERIOGONUM MICROTHECUM Nutt. 
EL’riogonum microthecum is a low, widely branched, woody shrub, 
generally less than a foot high. The bark on older stems is ‘shreddy 
and gray, stripping off readily to expose the reddish-brown younger 
layers. The younger stems are covered with fine, matted, white hairs 
that rub off easily. The leaves are elliptic-oblong, without mar- 
ginal teeth, densely white hairy beneath, sparingly so above, gener- 
ally not over half an inch long. The small white flowers, which 
change to pink with age, are very numerous and are borne in widely 
branched clusters. This plant is common on the RUE PIE cedar, and 
sagebrush-covered hills of central Utah. 
Department sample 7232 (W), consisting of the growing ends of 
the branches bearing green leaves, flowers, and some young fruit, 
collected near Tintic, Utah, September 13, 1915, contained, on an 
air-dry basis, 6.3 per cent of moisture, and, on a water-free basis, 
7.2 per cent of ash, 1.6 per cent of ether extract, 21.3 per cent of 
crude fiber, 60.7 per cent of nitrogen-free extract, 9.2 per cent of 
protein, and 10.9 per cent of pentosans. 
This species is eaten freely by livestock in its area of distribution. 
ERIOGONUM PINETORUM Greene 
Eriogonum pinetorum, a summer annual, varies greatly in size, 
depending upon the amount of water it receives. In dr y seasons it 
may be only 2 to 4 inches high and still produce seed. In favorable 
conditions it is often 18 inches and sometimes more than 2 feet high 
and much branched. Its leaves may be 2 inches long and half as 
broad, with an oval outline, or they may be reduced to narrow 
bractlike outgrowths. The flowers are small but numerous, in small 
heads, forming parts of a much-branched inflorescence. They are 
pale pink at first, turning rusty, and are persistent. The species 
grows in western Texas, New Mexico, Utah, ‘Arizona, and adjacent 
Mexico. 
Department sample 8953 (G), consisting of mature plants in full 
flower, with the lower leaves drying, collected i in the foothills of the 
Santa Rita Mountains, contained, on an air-dry basis, 5.5 per cent of 
moisture, and, on a water-free basis, 6.5 per cent of ash, 2.1 per cent 
of ether extract, 23.9 per cent of crude fiber, 59.8 per cent of nitrogen- 
free extract, 7.7 per cent of protein, and 13.1 per cent of pentosans. 
