I have a few D. patens. I think one of them produced gemmae but I don't see any gemmae on the others. I'm not sure if I missed seeing the gemmae on the other plants because they were launched away or if this one plant is producing gemmae earlier than the others. Or, maybe it isn't a D. patens like the other plants. Is this gemmae season in the Northern hemisphere? Is there a way to identify D. patens gemmae or do gemmae from all species look the same?