Purple Flower Platform
From the Super Mario Wiki, the Mario encyclopedia
Purple Flower Platforms are giant plants that appear in Donkey Kong Country: Tropical Freeze. They are large crimson flowers that serve as temporary platforms. They are only present in the level Baobab Bonanza, where they can be used to cross pits or reach high ledges.
Stepping on a Purple Flower Platform causes it to lean in one direction until it reaches a certain angle. If the Kongs continue to stay on it, the flower wilts and drops them off, after which it goes back to its initial position and regenerates. They act similarly to Mushroom Platforms from World 4-2 of New Super Mario Bros..