Foxtail

The Foxtail is a plant used for scenery. It does not affect gameplay at all, as it is only for decoration. This plant appears as a withered grass stalk with a plume of seeds on the tip.

In Pikmin 251
Foxtails can be seen in Pikmin 251. Their appearance is exactly like how it is in.

In Pikmin: Redemption
The Withered Foxtail appears in Pikmin: Redemption, alongside the Kittentail and the Cattail.

In Pikspore
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Foxtails appear in Pikspore, in a few caves such as Hidden Oasis and Mystic Marsh.