Re: How do plants without vascular bundles stay upright?

Hi Saurav:

"Monocots" ( a fancy name of a group of plants that have a seed all in one piece ), such as corn (and other grasses), Orchids, and palm trees have vascular bundles that do indeed make tissue that support the plant.

You won't find vascular bundles in "Dicots" (seeds are devided in halves), but they have, what is called, a cambium layer that produces vascular tissue that eventually becomes the support of the plant. That's the type of growth that makes woody trees and bushes. The wood is just old water transport tubing (Xylem, it's called)

And then, there are a few green things that are no longer considered plants, but have a kingdom of their own, that don't make vascular tissue at all. BUT these organisms DON'T support themselves, but lie down on wet ground.