Hi, I’ve grown this attractive fern from spores and it is quite unusual in that it spreads by distinctive black wiry rhizomes. I would love to know what species it is. Hopefully the 4 pictures attached will help you to identify it for me.
Hello Ferners, The fern pictured below I bought as Dryopteris wallichiana, but it certainly does not look like the rest of wallichianas I am growing. In many ways it is very similar .
But it has much fewer scales, a smaller size( same growing conditions and age), deeper venation and is less upright, but only slightly so. Asked a few fern experts here,( Seattle,WA , USA) and they were puzzled. I thought maybe D. yigongensis, though it is very rare in the trade here. Any way I am hoping you will be able to shed some light on this mystery.
Thanks for looking,