Nirnroot in elderscrolls was allways singularity, not repeatable alchemy super ingredient
now in ESO...
i got more nirnroot then anything else
why ?
because its not singular, it respawns.
because it makes a sound, you can hear it, the only alchemy ingredient you can hear
because it has an inner light, in the night you can see it for max range
so in TESO this most rare ingredient becomes the most common