Simplify the following text for a Grade 9 native English-speaking person.
Original: Algae lack the various structures that characterize land plants , such as phyllids ( leaves ) and rhizoids in nonvascular plants , or leaves , roots , and other organs that are found in tracheophytes ( vascular plants ) .
Simplified: Algae lack the various structures that characterize land plants , such as leaves , roots , and other organs that are found in plants .