STOCK-POISONING PLANTS OF THE RANGE. 
15 
INDIAN TURNIP (Psoralea tenuiflora). 
Psordlea tenuiflora, known as Indian turnip, is a very common 
plant on the plains of Colorado, Wyoming, and Montana, and is 
found as far east as Illinois. There have been many reports of its 
poisonous effects on horses and cattle, and it is said to. have been used 
by the Indians for poisoning fish. Several species of Psoralea have 
been examined by chemists, and have been found to contain poisonous 
principles. One of the species has been popularly known as a loco 
weed. There has been no experimental work to prove its effect on 
domestic animals, and as it is distasteful to grazing animals it can 
not, under any circumstances, be considered an important poisonous 
plant. There is good reason, however, to suspect it of sometimes 
Fig. 12. — A sheep poisoned by lupine in the typical attitude of butting against some object. 
being harmful, if animals are forced to eat it by reason of poor 
pasturage or because it is present in large quantity in hay. Plate 
XIII is a picture of this plant. 
COFFEE BEAN (Daubentonia longifolia). 
The coffee bean (Daubentonia longifolia) , shown in Plate XIV, is 
a shrub growing in the Gulf region and extending as far north as 
the northwestern border of Texas. It likes to live with " its feet in 
the water " and is found in great profusion along ditches and slug- 
gish streams in southern Texas. 
The leaves are alternate, with 12 to 60 leaflets, and the flowers are 
lemon yellow. The pods, as shown in the illustration, have four 
wings and the seeds are separated from one another by cross parti- 
tions in the pods. 
