58719
For example , geophytes growing in woodland under deciduous trees ( e.g. bluebells , trilliums ) die back to underground storage organs during summer when tree leaf cover restricts light and water is less available .
 bluebells
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:
 bluebells