This site lists Japanese Sansai:
Sansai is the Japanese word for wild vegetables.
The Japanese seem to get including in common names for things, that Korea and China has as well.
I found this article in the Japanese times for fern forraging. One of the ferns is quite common in bibimpap. Called bracken fern(Pteridium aquilinum), the fiddle heads are used in the dish.
I am most interested finding some Ostrich Ferns (Matteuccia struthiopteris). The young sprouts are called fiddle heads and used in Asian and French cuisine.
Fiddle Heads
Source: downrightcurious.com
Preparation:
Before eating food its important to know how its traditionally prepared. The Ostrich Fern Fiddle Heads shown above will need only some blanching or roasting. To remove the toxins from it.
Wikipedia provides useful common information and Pubmed provides peer reviewed scientific data on pharmacology.
