Question: Good afternoon Dr :) I have tentatively identified a local aster as Eurybia macrophylla. The distinctive features noted include a …
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Question
Good afternoon Dr :) I have tentatively identified a local aster as Eurybia macrophylla. The distinctive features noted include a glabrous stem, basal leaves heart-shaped, intermediate leaves are winged obovate, phyllaries are rounded and ciliated, and the inflorescence appears corymbiform. Also, the pedicels are glabrous and each are subtended by a leaf. I would appreciate your assessment. Thank you, Edward
Answer
Dear califyank, good afternoon. If you are seeing glabrous peduncles (i.e., no tiny stipitate glands), then it won't be Eurybia macrophylla. You need to look for them with around 15X magnification. That species also usually has light blue (or at least blue-tinged ray flowers). You may have Eurybia scherberi instead. It is less common than Eurybia macrophylla. I hope this assists with your identification.
