1. Species: Lentinus edodes, also known as Lysimachia, is a perennial erect or wet ornamental plant of Polygonum in Umbelliferae, and Lysimachia is a plant of Lysimachia in Primulaceae.

2. Leaves: Lentinus edodes leaves are umbrella-shaped like copper coins, while copper coins leaves are kidney-shaped to round.

3. Flowering: Lentinus edodes blooms in an umbel from June to August, and the flowers are small and white and pink, while the flowering period of copper money grass is from May to July every year, with bell-shaped corolla and yellow flowers.