Which plant is known for having arrow-shaped leaves?

The plant that is known for having arrow-shaped leaves is swamp morningglory. This distinctive leaf shape helps in identifying the plant among others. Swamp morningglory, scientifically known as Ipomoea aquatica, typically grows in wetland areas and features leaves that are often heart-shaped or, in some instances, can exhibit a more arrow-like morphology, especially in specific environmental conditions.

The unique form of the leaves may aid in adaptation to aquatic environments, allowing for efficient water management and providing a prominent identification feature. In contrast, the other options do not possess this characteristic leaf shape, making swamp morningglory the correct choice in this context. Understanding the morphological traits of aquatic plants is crucial in distinguishing between various species in those habitats.