차축조과에 속하는 녹조식물의 한 속으로, 주로 담수에서 발견되며 줄기와 잎 같은 구조를 갖추어 고등 식물과 유사한 외형을 띤다.
A genus of green algae in the family Characeae, typically found in fresh water and characterized by a plant-like appearance with whorls of branchlets.
예문:
"The presence of chara in the pond indicates a high level of calcium in the water."
"Chara is often called 'stonewort' because it can become encrusted with lime."
"Researchers studied the cellular structure of chara to understand early plant evolution."