36 MISC. PUBLICATION 101, U. S. DEPT. OF AGRICULTURE 
and that the affected animals usually die. It is a rather common ob- 
servation among stockmen that if eaten profusely, when in vigorous 
growth, greasewood will sometimes cause bloating. 
OTHER GENERA 
Several undershrubby species of seepweed, often called sea blite 
(Dondia spp.) and of molly (ochia spp.), notably green molly 
(XK. americana), furnish a fairly copious supply of small leaves and 
‘slender twigs of moderate palatability in dry, saline areas of the 
West, especially the Great Basin region, and in some places are fairly 
important winter sheep feed (9). Burroweed, or pickleweed (AJdlen- 
rolfea occidentalis), known also as iodine-weed and frequently, but 
erroneously, as samphire, is a fleshy, jointed, and practically leafless 
undershrub of the Great Basin and Southwest which Shantz (in 
Clements, 20) has stated will endure a soil alkali content of 1.2 per 
cent. Jt is thus the last vegetation to succumb to salinity except 
the glassworts (Salicornia spp.). Except under starvation condi- 
tions burros alone among domestic animals appear to be able to 
stomach Allenrolfea. 
BUTTERCUP FAMILY (RANUNCULACEAE) 
In the West this family appears to be composed exclusively of 
herbs, save only for the woody Clematis vines and perhaps the 
botanically anomalous Southwestern shrubby genus Crossosoma, the 
latter being apparently worthless as forage. 
The numerous species of clematis (Clematis, including Atragene 
and Viorna of some authors), are nearly negligible as forage. 
Columbia clematis (C. columbiana, syns. Atragene columbiana, A. 
occidentalis (of Rydberg, not Hornemann), and C. verticillaris 
columbiana), of the Northwest and northern Rockies, is reported 
from northwestern Montana to be eaten when the leaves are young 
and tender. : 
BARBERRY FAMILY (BERBERIDACEAE) 
HOLLYGRAPES (ODOSTEMON SPP.) 
Hollygrape is commonly known by a number of other names, such 
as Oregon grape, hollyleaf barberry, mahonia, and palo amarillo. 
The species are merged by many botanists in the barberry genus 
(Berberis), but the nonspiny stems; evergreen, pinnately compound 
leaves with prickly leaflets; terminal inflorescence; and mostly 
spherical, mainly blue berries, give the group an entirely different 
aspect from true barberries. 
The very acid berries of hollygrapes are valued for jelly and 
preserves or, in a few species, are edible raw. Bark, roots, and 
berries of some species are used medicinally. The yellowish wood is 
sometimes used as a dye. These shrubs often have erosion-control 
value on dry slopes, and some are cultivated as ornamentals, because 
of the foliage, sweet-scented yellow flowers, and bright-colored fruits. 
These plants are normally unpalatable to livestock but merit notice 
here because of their commonness and wide distribution on western 
ranges, and because of their actual or potential economic significance. 
