28476
( Eritrichium , Hackelia , Lappula ) are resolved on a poorly supported polytomy together with the Omphalodes - clade ( incl . Myosotidium , Cynoglossum p . p . ) , and the Mertensia - clade ( incl . O . scorpioides , Asperugo ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 None