63732
They help to protect riders ' legs from scraping on brush , injury from thorns of cacti , sagebrush , mesquite and other thorny vegetation .
 cacti, sagebrush, mesquite
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 cacti, sagebrush, mesquite