Hastingsia is a type of plant that can live underwater in rivers and streams. Imagine a toy boat floating on top of a bathtub full of water. Hastingsia is like the little grass or plants you might see growing on the bottom of the tub. Just like the boat needs water to float, hastingsia needs flowing water to grow.
The plant has long, thin and green leaves that are kind of like skinny noodles. They grow straight up from the riverbed towards the surface of the water. When the plant gets close to the surface, some small leaves and tiny flowers appear on top of the water. These flowers look like little stars with white or pink petals and a yellow center.
Unlike many other plants, hastingsia does not grow in groups or bunches. It likes to be alone, and you might only find one or two plants in an entire area of a river.
The reason hastingsia is important is because it serves as a home and food for small creatures that live underwater. Imagine you are living in a house and you have food in your pantry. Hastingsia is like that for underwater creatures. They can swim to the plant, eat it, and also hide from bigger predators.
Hastingsia is also important because it can tell us if the water in the river is healthy or not. If the water is healthy, the plant will grow and thrive. But if the water is polluted or has too many chemicals, hastingsia may not grow at all. Scientists can use hastingsia to help them understand if a river is polluted or not.
So basically, hastingsia is a special plant that lives underwater, is important for small creatures, and helps us know if a river is healthy.