 In warm desert , <unk> ( <unk> spp . ) and <unk> ( <unk> tridentata ) are principal <unk> species . Broom <unk> ( <unk> <unk> ) and <unk> <unk> are also used . In honey <unk> ( <unk> <unk> var. <unk> ) communities in New Mexico , the overall black @-@ tailed jackrabbit diet was 47 % shrubs , 22 % grasses , and 31 % forbs . Black <unk> ( <unk> spp . ) , <unk> ( <unk> spp . ) , <unk> ( <unk> <unk> ) , and <unk> ( <unk> spp . ) are the most commonly grazed grasses . <unk> <unk> ( Croton <unk> ) , <unk> <unk> ( <unk> <unk> ) , desert <unk> ( <unk> <unk> ) , <unk> <unk> ( <unk> <unk> ) , and <unk> ( <unk> spp . ) are important forbs , although many <unk> species are grazed . <unk> spp . , <unk> ( <unk> <unk> ) , and other <unk> are used throughout the year , but are especially important in dry seasons as a source of moisture . 
