NATIVE WOODY PLANTS OF THE UNITED STATES 99 
Chrysobotrya aurea, see Ribes aureum. 
Chrysobotrya odorata, see Ribes odoratum. 
Chrysocoma nauseosa, see Chrysothamnus nauseosus. 
Chrysoma arborescens, see Aplopappus arborescens. 
Chrysoma brachylepis, see Aplopappus propinquus, 
Chrysoma laricifolius, see Aplopappus laricifolius. 
Chrysoma nana, See Aplopappus nanus. 
Chrysoma palmeri, see Aplopappus palmeri. 
Chrysoma parishii, see Aplopappus parishii. 
Chrysothamnus spp. (pl. 9, A). Rabbitbrush. 
The members of this genus display great variation, and aS many as 6 genera 
have been described and 88 forms, nearly all of which have been given specific 
rank at one time or another. Intergrading characters are many, and in this 
treatment we follow that of Hall and Clements. (247). 
The following records apply not only to woody species but to herbaceous 
ones, of which there are many: 
Stomach records (in addition to specific records) : Mountain sheep; black- 
tailed deer. Observations (in addition to specific records): A reserve food of 
western white-tailed jack rabbit; Oregon jack rabbit, mule deer, Arizona jack 
rabbit, western chipmunk, bighorn; generally of considerable importance as 
cover for plains birds and mammals. Palatability worthless to fairly good for 
livestock. 
Chrysothamnus albidus (Jones) Greene. 
Range: 8, 9. 
Site: Dry, sun. 
Fruit: Achene. 
A small, brittle-twigged, very leafy shrub; a pronounced halophyte of alkali 
flats. 
Chrysothamnus asper, see Chrysothamnus parryi. 
Chrysothamnus baileyi, see Chrysothamnus pulchellus. 
Chrysothamnus bigelovii, see Chrysothamnus nauseosus. 
Chrysothamnus bloomeri, see Aplopappus bloomeri. 
Chrysothamnus collinus, see Chrysothamnus nauseosus. 
Chrysothamnus concolor, see Chrysothamnus nauseosus. 
Chrysothamnus consimilis, see Chrysothamnus nauseosus, 
Chrysothamnus corymbosus, see Aplopappus cooperi. 
Chrysothamnus depressus Nutt. Dwarf rabbitbrush. 
Bigelovia depressa Gray, Linosyris depressa Torr. 
Range: 9, 10, 11. 
Site: Dry, sun. 
Fruit: Achene. ; 
A small, densely clump-forming shrub. Closely cropped, apparently by sheep, 
but scarcely of importance as browse. 
Chrysothamnus douglasii, see Chrysothamnus viscidiflorus. 
Chrysothamnus elatior, see Chrysothamnus pulchellus. 
Chrysothamnus elegans, see Chrysothamnus viscidiflorus. 
Chrysothamnus filifolius, see Chrysothamnus greenei. 
‘Chrysothamnus glareosus, see Chrysothamnus nauseosus. 
Chrysothamnus glaucus, see Chrysothamnus viscidifiorus. 
Chrysothamnus graveolens, see Chrysothamnus nauseosus. 
Chrysothamnus greenei (Gray) Greene. 
C. filifolius Rydb., Bigelovia greenei Gray. 
Range: 9, 11. 
Site: Dry, sun. 
Fruit: Achene. 
