Question: Good afternoon doctor. I recently encountered a tall grass that appears to be consistent with Echinochloa frumentacea. The blades measured …
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Question
Good afternoon doctor. I recently encountered a tall grass that appears to be consistent with Echinochloa frumentacea. The blades measured about 40 cm above the collar. The absence of a ligule and awns with numerous fibers on the achene appears consist with your images. The root structure was fibrous and easily pulled up. I found this grass growing in Malden, MA. I would appreciate your analysis. Thank you in advance
Answer
califyank, from the images supplied, it would be hard for me to distinguish this apart from Echinochloa muricata, which is a common species in New England. The problem is that E. muricata is not always awned. It is very likely one of the two species (E. frumentacea or E. muricata). I hope this is of some value.
