"You know a thing or two about the wild plants of the land, and can see and pick a lot of them if you find them. Increasing your "Perception" and "Exploration" values will help you find more Foregables."
This skill uses Perception and Exploration to be able to see various plants, herbs, roots and berries that you can pick. This Skill also allows you to raid ant hills.
Notes
The frequency of finding herbs is based on the multiplication of the viewer's Perception and Exploration skills (commonly called Per * Exp).
The quality of the herbs is based on their quality nodes which are different for each herb. When picking up herbs their quality will be Hardcapped by the gatherer's Survival skill.
There is a minimum value (required Per*Exp, see above) to start spotting each foragable good. Higher stats will increase the spotting chance, up to 4 times the minimum value, at which point all forageables of that type will be seen.
It appears that whether forageable item is visible is calculated the moment it gets inside your sight range, and it's random with the chance depending on your Exploration * Perception value. It is possible that item becomes visible, and then "disappears" when you move out of sight range and come back. It simply means that you were less lucky with RNG the second time you came within range of the item, and it may appear again if you move away from sight range and come back. In other words - it seems that items don't have specific difficulty value set at spawn time, and instead it's randomly generated (ranging from base value to 4 * base value) separately for each character, each time it comes within range.
Your forage level is defined as your perception stat times your exploration level.
The following table refers to the "levels" at which forageables are visible. There appear to be 100 levels of gradiation between the "First Seen" and "All Seen" levels, but this is unconfirmed.
It is known that you will start seeing forageables when your forage level is half of the forageable's base level and you will see all of a particular forageable when your forage level is double the base level. Quoting Loftar: "Rustroot's base level is 1000. Which means you'll start seeing them at 500 and see all of them at 2000."
