Lumiknoll

Besides the fact that they serve as incubators and nests for Glow Pikmin, we know very little about the Lumiknoll's ecology. When nocturnal creatures die, a Lumiknoll can break them down into glow pellets through its strong dissolving enzymes. This matter, when condensed, becomes glow sap. One might assume glow sap is then an extremely dangerous substance, but it has hardly any negative effects. In fact, I've had it administered to me personally as a curative medicine to break down growing leaves. Lumiknolls will only appear in places where an Onion was located earlier in the day, and since they propagate Glow Pikmin, one could surmise that they are rhizomes from those Onions. Perhaps, using its dissolving powers, it returns the nectar that supports the ecosystem back to the soil.

Smells a lot like an Onion. The green juice is particularly delicious!