Question: Hi again, this is a follow up to my plantain question I asked earlier. I examined a fruit as you …
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Question
Hi again, this is a follow up to my plantain question I asked earlier. I examined a fruit as you suggested, and located what I believe is the line of dehiscence, which I hope I've adequately photographed here. The line is not exactly in the middle, but is this roughly where you would expect to find it in Plantago major? Comparing to pictures I've been able to find of the fruits of both P. major and P. rugelii, I'm still not totally sure. Thank you again for your help!
Answer
Dear DavidJ, let's add some characteristics that can help. The fruit of Plantago rugelii is 4 mm or longer (that of P. major is 4 mm or shorter). You could measure the length of the fruit to assist with your identification. Also, each fruit in Plantago rugelii has 4-9 seeds 1.5-2 mm long (P. major has 6-11 seeds 1-1.7 mm long). The length of the seeds is particularly useful. Do a few measurements if you can and report back so we can make an informed identification. The line of dehiscence suggests P. rugelii, but it will be nice to confirm with other characteristics. Thank you.
