14876
The junctions of the stems are covered by two fused stipules which form an ochrea , a thin , paper-like sheath - a characteristic of the Polygonaceae family , and fringed above in this species .
 Polygonaceae
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:
 Polygonaceae