As a Fungoid, you cannot be moved or pushed by any means other than your movement. You can still be instructed to move while under a charmed affect and must still do so.

Should you teleport, you will appear in the new spot as normal and will be instantly rooted to the ground again.

Using your burrowing speed, you can move through any material with ease. However, Fungoids need to breath, so you cannot stay underground for too long. You must resurface by your next turn or take a point of exhaustion at the end of every turn past the first if your still burrowed.

You can use this trait to deal damage to a creature by burrowing into them. As a Bonus Action, If you end your move in the same space as another creature, you can burrow into them, dealing 1 D4 Piercing damage for every 5 feet of movement used. (If you opt to use 15 feet of movement to burrow into a creature, you would deal 3 D4 points of damage)

You can opt to Burrow while resting, but you must leave your head above ground. You are granted 3/4 cover 

You do not need to eat but must still drink. You are resistant to poison damage and immune to the poisoned condition.

Whenever you take fire damage from a source, you take an additional 1D6 fire damage.

Should you die, you will spawn 1D4 x your level new Fungoids. These new creatures are friendly to your party but will go off to return to Fungoids lands. If your in a combat, they will stay and help.

Your creature type is Plant 

Your size is Tiny, up to a maximum of 1 foot tall

You have a burrowing speed of 30 feet.

You can never have a fly speed