I just bought a pack of fenugreek seeds. The seller site labels them as "mushroom herb" and "fenugreek", but they came in a packet with Cyrillic letters and a sticker with English instruction to grow "mushroom herb." "Fenugreek" is not printed anywhere on the packet. The seeds do look similar to a picture I found on Wikipedia of fenugreek seeds.
Having checked online, it seems mushroom herb (rungia klossii?) and fenugreek (kasoori methi in Hindi?) are said to have different origins and the two names rarely appear in one article. It seems strange that there isn't any discussion that they are the same plant if they really are. Also curious is the fact that I can't find much information on the former.