Which are the characters that make a plant hydrophyte?

Correct answer: Both A & B. Hydrophytes (water plants) have little mechanical tissue and have aerenchyma (air spaces) to float.

Background: Hydrophytes grow in or on water.

• Absence of mechanical tissue: Absence of mechanical tissue is only one of the characters.
• Presence of aerenchyma: Aerenchyma is only one of the characters.
• Presence of well-developed vascular system: Hydrophytes have a poorly developed, not a well-developed, vascular system.

Did you know? Examples are water lily and Hydrilla.

Memory trick: Water plants: soft + air spaces.