Nevada Mountains to 
across southwestern 
DEATH CAMAS SPECIES, ZYGADENUS PANICULATUS. 3 
are scythe-shaped, all sheathing, roughish on both sides, rather thick, 
6 to 12 inches long, and one-third to two-thirds of an inch wide. 
The stems are stout, erect, and 1 to 24 feet high. The flowers are in 
panicled racemes, and consist of six segments with membranous 
bracts; the upper segments are deltoid, acute, or acuminate, with a 
short. claw and glands at base not definitely margined. The flower 
seoments are one-sixth to one-fourth of an inch long and are free 
from the 3-celled ovary. The ovary is cylindrical and one-half to 1 
inch long. The stamens are raised above the flower segments. 
This plant is largely confined to the Great Basin. (Fig. 1.) Its 
known range is from the British Columbia line in the Cascades south, 
in Washington, along 
the eastern side of the 
Cascade Range to 
northwestern Cali- 
fornia, where for a 
distance it crosses to 
the western side of the 
Sierra Nevadas. It 
follows the eastern 
slope of the Sierra 
thesouthern extremity PK 
of Nevada. Itranges 
eastward across south- 
ern Washington and 
central Idaho to west- 
ern Montana, thence 
Wyoming to north- 
eastern New Mexico 
and northern Arizona. 
It ascends on _ the. 
British Columbia line to about 7,000 feet and in the Wasatch Moun-: 
tains to about 8,500 feet. In California it is found above 2,700 feet. 
Its best habitat is the dry gravelly ridges of the juniper-pifion-oak belt. 
Because of the wide range of conditions under which the plant 
grows, its time of flowering varies. It is said to blossom in California 
from April to June. Near the Salina Experiment Station, Utah; 
where it grows at an altitude of more than 8,000 feet, it does not 
blossom until June and is in seed the last of the month. 
Fig. 1.—Distribution of Zygadenus paniculatus. 
_ EXPERIMENTAL FEEDING. 
In 1919, 1920, and 1921, 7 experimental feedings of Z. paniculatus 
were made on cattle and 44 on sheep. Table 1 gives a summary of 
these experiments. 
