An anemone is dead if it ceases to respond to stimuli. A sea anemone reacts to the slightest touch, while the plant anemone perks up, grows and blooms when watered.
A sea anemone is an invertebrate animal that is related to jellyfish and coral. It requires food and water to survive. It has a foot that attaches to rocks and reefs on the ocean floor. When prey stimulates the tentacles, the anemone releases filaments that inject paralyzing neurotoxins into the prey. The prey is then guided into the animal's mouth. There are more than 1,000 species of anemones found in the world's oceans, but the largest and most plentiful live in coastal tropical waters. Anemones range from 1/2 inch to 6 feet in size.
The plant anemone, also known as a windflower, consists of 120 species of plants that grow in North America, Japan and Europe. Anemone is a perennial herb that produces cup-shaped yellow, white, purple, violet or red flowers. They are known as windflowers because the wind blows the flowers open and helps distribute the fruits. There are three categories of anemone plants: spring-flowering anemones; tuberous Mediterranean, which flowers in spring and summer; and fall flowering, which blooms in late summer to fall. The plant anemone needs water, healthy soil and sunlight to thrive.