gaint bramuda grass i think corn is the tallest
If you mean grasses then probably sugar cane or bamboo.
Pampas grass.
Bambo
Some of the Bamboos.
grasslands..
It is titan arum which grows up to 20m It is the Titan Arum.
a redwood giant grows around 150 meters
It wasn't measured in a town it was measured where it grows.
rainforests
grass grows naturally it uses the weather to grow
It's "grasses grow" (when talking about multiple kinds of grass) or "grass grows" (when talking about only one kind of grass).
Along the Nile River, all kinds of grasses and shrubs grow. There are also a number of trees that can survive the heat and humidity in Egypt if they are near water.