Angry Dandelion

It only exists during a Windy Day, only in daylight, and only on grass or mowed grass with open sky directly above the tile. A background wall over that block stops it. It also only appears upwind of you, the same rule the Windy Balloon follows, so the ones that matter are always ahead of you, seeds pointed down your path.

It is rooted where it grew and never chases. All it does is spit small volleys of seeds, and it can only spit them the way the wind is already blowing, so walking past one against the wind ends the encounter with no input from you. Its firing box is long and very flat, which means getting well above or below its line cuts the seeds off even at close range.

Since they need bare grass under open sky, paving a strip with anything else, or running a platform walkway overhead, clears that stretch permanently. Killing one drops Daybloom, which makes no sense for a dandelion and happens only because the game has no dandelion item to give you.